Attachment 0001 JPMP-PD-IFS-01 - FINAL.pdf

JPMP-PD-IFS-01

24 July 2018

PURCHASE DESCRIPTION

SOCKS, CHEMICAL PROTECTIVE

This purchase description is approved for use by all Departments and Agencies of the Department of

Defense.

1. SCOPE

1.1 Scope. This purchase description covers the requirements for a chemical protective sock. The sock is referred to as the Joint Service Lightweight Integrated Suit Technology (JSLIST) Integrated

Footwear System (IFS).

1.2 Classification. The sock will be produced in one class and one type, and in the sizes in 1.2.1.1.

1.2.1 Sock. The IFS is defined as one sock. The IFS will be packaged in pairs for shipping and for issue.

1.2.1.1 Schedule of sizes. The IFS will be produced in the following sizes (see 6.2).

Extra Small (XS)

Small (S)

Medium (M)

Large (L)

Extra Large (XL)

Extra-Extra Large (XXL)

2. APPLICABLE DOCUMENTS

2.1 General. The documents listed in this section are specified in sections 3, 4 and 5 of this purchase description. This section does not include documents cited in other sections of this purchase description or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements documents cited in sections 3, 4 and 5 of this purchase description, whether or not they are listed.

INCH-POUND

Beneficial comments (recommendations, additions, deletions, clarifications) and any pertinent data which may be of use in improving this document should be addressed to: Procurement

Contracting Officer at DLA Troop Support, Clothing and Textiles Directorate, 700 Robbins

Avenue, Philadelphia, PA 19111-5096. Only the Contracting Officer from the procuring activity can make changes to contractual requirements cited in this document.

2.2 Government documents.

2.2.1 Specifications and standards and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract (see 6.2).

STANDARDS

COMMERCIAL ITEM DESCRIPTIONS

A-A-50199 Thread, Polyester Core, Cotton or Polyester-Covered

DEPARTMENT OF DEFENSE SPECIFICATIONS

MIL-STD-129 Department of Defense Standard Practice Military Marking for Shipment and Storage

(Copies of this document are available online at http://quicksearch.dla.mil.)

2.2.2 Other Government documents, drawings, and publications. The following other

Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract (see 6.2).

DEPARTMENT OF THE ARMY

TOP 8-2-501 Permeation and Penetration Testing of Air-Permeable, Semi-permeable, and

Impermeable Material with Chemical Agents or Simulants (Swatch Testing)

TOP 8-2-503 Low Volatility Agent Permeation (LVAP) Swatch Testing

(Copies of these documents are available online at http://www.dtc.army.mil).

DEFENSE LOGISTICS AGENCY

Palletization Instruction

(Copies of this document are available through the Defense Logistics Agency at http://www.dla.mil/Portals/104/Documents/LandAndMaritime/V/VS/PalletizationRqmtWPMClause.

pdf.)

2.3 Non-Government publications. The following document(s) form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract (see 6.2).

http://quicksearch.dla.mil/ http://www.dtc.army.mil/

AMERICAN SOCIETY FOR QUALITY CONTROL

ANSI/ASQ Z1.4 Sampling Procedures and Tables for Inspection by Attributes

(Copies of these documents are available online at www.asq.org )

ASTM INTERNATIONAL

ASTM D751 Standard Test Methods for Coated Fabrics

ASTM D1777 Standard Test Method for Thickness of Textile Materials

ASTM D1974 Standard Practice for Methods of Closing, Sealing, and Reinforcing

Fiberboard Boxes

ASTM D2582 Standard Test Method for Puncture-Propagation Tear Resistance of Plastic

Film and Thin Sheeting

ASTM D3776 Standard Test Method for Mass per Unit Area (Weight) of Fabric

ASTM D3886 Standard Test Method for Abrasion Resistance of Textile Fabrics (Inflated

Diaphragm Apparatus)

ASTM D5034 Standard Test Method for Breaking Strength and Elongation of Textile

Fabrics (Grab Test)

ASTM D5118 Standard Practice for Fabrication of Fiberboard Shipping Boxes

ASTM D6193 Standard Practice for Stitches and Seams

(Copies of these documents are available online at http://www.astm.org)

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION

ISO 15496 Textiles - Measurement of Water Vapour Permeability of Textiles for the

Purpose of Quality Control

(Copies of this document are available online at http://www.iso.org).

NATIONAL FIRE PROTECTION AGENCY

NFPA 1975 Standard on Emergency Services Work Clothing Elements

(Copies of this document are available online at http://www.nfpa.org)

2.4 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the text of this document and the references cited herein (except for related specification sheets), the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.

3. REQUIREMENTS

3.1 Qualification. Socks furnished under this purchase description shall be products that are manufactured by the manufacturer authorized by the qualifying activity for listing on the applicable list of qualified manufacturers (see 6.7) before contract award. Production Qualification Test (PQT) http://www.asq.org/ http://www.astm.org/ http://www.iso.org/ http://www.nfpa.org/

(see 4.2 and 6.3) requirements are those requirements that the IFS must meet in order to be considered a qualified source.

3.2 First article. When specified (see 6.2), samples shall be subjected to first article inspection in accordance with 4.3 and 6.4.

3.3 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs.

3.4 Materials. The materials for the sock shall conform to applicable specifications, standards, and drawings required herein (see 2.2 and 2.3). Equivalent materials or components shall not be used unless authorized by the procuring activity. Equivalent materials or components may require testing prior to authorization.

3.4.1 Selectively permeable membrane. The socks shall be made of a selectively permeable membrane (SPM) material, suitable to meet the requirements of Table I when tested in accordance with Table VI. There is only one source for the material system and the tape (see 6.7). The face side of the material is gray and the wrong side of the material is green.

3.4.1.1 Laminate. The material used for the sock shall be W.L. Gore part number KSGZ103100A.

No other material shall be used without authorization from the contracting authority.

3.4.1.2 Tape. The seam-sealing tape used for the sock shall be W.L. Gore part number

6CSAJ022BLKNM. No other tape shall be used without authorization from the contracting authority.

3.4.1.3 Thread. The thread used for the IFS front, toe and back seams shall meet the requirements of A-A-50199, Type II Tex 40. Thread used to attach the cuff to the sock shall be the same type.

3.4.2 Physical and chemical property requirements. The SPM material system shall conform to the physical and chemical property requirements listed in Table I when tested in accordance with Table

VI. The cuff material is not tested for chemical properties.

Table I. IFS requirements.

A list of abbreviations used can be found below this table.

Parameter Target Performance Number of replicates Section 4

Verification

Protect the Warfighter from liquid/vapor chemical agents

Pass at least one criterion:

1) The fabric must not have a statistically higher penetration than the baseline using a

Tobit Model 2 sample test at a 95% confidence level.

OR

2) The Geometric mean must not exceed:

14 per agent/condition combination

4.5.1.1

TGD, HD

10 g/m2 challenge

TGD ≤ 357.29 CT

HD ≤ 671.24 CT

Protect the Warfighter from liquid/vapor chemical agents

The fabric must not have a statistically higher penetration than the baseline using a

Tobit Model 2 sample test at a 95% confidence level.

14 per agent/condition combination

4.5.1.1

VX

10 g/m2 challenge

Protection will not be degraded by contaminants:

HD

Sweat

Seawater Immersion

JP-8

Hydraulic Fluid

5% bleach solution

DEET

IDK

TGD

Sweat

Seawater Immersion

≤ 671.24 CT

≤ 357.29 CT

14 per agent/condition combination

4.5.1.1

Packaged Weight Packaged weight of a pair of size medium

IFS shall be 4.4 (±0.2) ounces. Per test protocol 4.5.1.5.7

Melting No melt or drip Per test protocol 4.5.1.3.2

Logistical

Considerations

IFS shall fit an equal size range compared to the legacy sock with no more than six

(6) sizes.

N/A 4.5.1.4.1

Table I. IFS requirements. – Continued

Parameter Target Performance Number of replicates

Section 4

Verification

Dimensional Stability Shrink no more than 5% after two

(2) laundering cycles. Not be stretched or distorted in shape due to laundering treatments or wear.

Per test protocol 4.5.1.2

Breaking Strength Average: 100 lbf. (Min)

Individual Specimens, no more than two below: 75 lbf (Min)

One per sock 4.5.1.5.1

Seam Strength Average Value: 65 lbf (Min)

Individual Specimens, no more than two below: 50 lbf

One per sock 4.5.1.5.2

Leakage No more than one bubble every seven seconds from the same location

4 4.5.1.5.3

Puncture Propagation

Tear

Average Upper: 7 lbf (Min)

Individual Specimens - Upper, no more than two below: 5 lbf

One per sock 4.5.1.5.4

Hydrostatic Resistance Average Value: 95 psi (Min)

Individual Specimens, no more than two below 75 psi

One per sock 4.5.1.5.5

Water Vapor

Permeability

Average Value: 3,800 g/m2/24 hr

(Min)

Individual Specimens, no more than two below: 3,000 g/m2/24 hr

One per sock 4.5.1.5.6

Usage Tracking Supply a method for tracking the number of laundering cycles, wear hours, and service life hours Per test protocol 4.5.1.7.5

Packaging Contain one pair of IFS in an individual package that identifies the content’s size by a method readable by individuals in MOPP4.

Per test protocol 4.6.1

MOPP – Military Oriented Protective Posture (number following indicates the level)

IDK – Individual Decontamination Kit

CT – Contamination multiplied by time

JP-8 – Jet Propulsion fuel number 8

DEET - N, N-Diethyl-meta-toluamide (insect repellent)

3.5 Components.

3.5.1 Knit cuff. The cuff shall be made of a knit material from the source specified in 6.7, or equivalent (see 6.9).

3.5.2 Thread. The thread for stitching is polyester, size 40, 2 ply polyester core thread conforming to A-A-50199. The thread shall be water repellent treated as specified in MIL-T-3530. The color of the thread shall be black.

3.5.3 IFS care instruction sheet. The IFS care instruction sheet shall be printed on white paper in black ink. The dimensions of the sheet shall be roughly square and 4-3/4 (±1/4) inches on each side.

The lettering shall be such that the tallest letter is no smaller than 1/16-inches tall.

3.6 Sock design. The system shall be a sock. The “upper” refers to the material located between the cuff and the break in the foot. The “foot” refers to the material below the upper located between the heel and the toe. The sock (see Figure 3) shall be a one-piece item that extends to the mid-calf, finished with a knit cuff. The sock shall be sewn along the back from the cuff to the heel and along the front from the cuff to the toe, with stitching across the toe. All seams, with the exception of the attachment of the cuff to the upper, are covered with seam-sealing tape. Breaks in seam sealing tape shall be addressed by starting a new layer of tape no less than 1 inch from the break (see 3.10).

3.7 List of pattern parts. Table II is provided to ensure that the pattern set provided is complete.

The component parts of the IFS shall be cut from specified materials, in accordance with Table II.

The table below represents the parts needed for a pair of socks.

Table II. Pattern parts for a pair of IFS socks.

COMPUTER

NOMENCLATURE

PATTERN

NOMENCLATURE

CUT

PARTS

MATERIAL

IFS-SOCK SOCK PATTERN 2 SPM

N/A KNIT CUFF 2 CUFF*

* cuff is an outsourced item (see 6.7)

3.8 Figures. Figures 1 and 2 contain required information. Minor formatting changes are allowed as long as the finished markings meet the specified size requirements. Figures 3 through 6 are furnished for information purposes only. Figure 7 contains a required sizing chart (see 3.13.2). When inconsistencies exist between the written specification and the figures the written specification shall govern.

3.9.1 Stitches, seams, and stitching. Stitches, seams, and stitching types specified in Table III shall conform to ASTM D 6193. Deviation of the order of operations is permitted, as long as the final IFS meets all requirements of this PD. Whenever two or more methods, seams, or stitches are given for the same part of an operation, any one of them may be used. Ends of all stitching, when not caught in other seams or stitching, shall be backstitched not less than 1/2 inch.

3.9.2 Seam allowance. Unless otherwise specified, the seam allowances shall be as follows.

a. Cuff attachment: 1/4 inch

b. Main seam (front and back): 1/8 inch

3.9.3 Cutting and marking. The sock shall be cut in accordance with patterns furnished.

Table III. Table of operations for IFS.

No. Description of Operation Stitch

Type

Stitches Per

Inch

1. Cutting

a. Cut the bootie in strict accordance with the pattern.

2. Stitching

a. Stitch the front seam of the bootie together with seam allowance face to face.

b. Stitch the toe seam of the bootie together with seam allowance face to face.

c. Stitch the back seam of the bootie together with seam allowance face to face.

301 10-12

3. Seam Sealing

a. Seam seal the toe seam.

b. Seam seal along the front seam from the top of the bootie to over the toe seam.

c. Seam seal along the back seam of the bootie from the top of the bootie to below the heel.

4. Over edge stitch the knit cuff along the top opening of the bootie face to face.

502, 503 or 505

≥8 when fully stretched

3.10 In-process repair. Repairs in socks shall be limited to replacement of affected pieces or heat pressing. No patching of sock material is permitted. Seam tape repairs shall extend one inch beyond the affected area. Only two seam tape repairs shall be permitted per sock. Loose stitches, thread breaks or runoffs shall be repaired by overlapping stitching no less than 1/2 inch on each side.

3.11 Finished dimensions. Each size outer sock shall conform to the finished dimensions shown in

Table IV, when measured in accordance with 3.11.1. Figure 3 is provided for clarification.

Measurements shall be taken using a calibrated measuring device.

Table IV. Finished IFS dimensions (inches).

IFS Size

Width A

Width B Total Length C Relaxed

Minimum

Expanded

XS 3-1/2 6 6 18-1/2

S 3-1/2 6-1/2 6-1/2 19

M 3-1/2 7 7 19-1/2

L 4-1/4 7-1/2 7-1/2 20-1/4

XL 4-1/4 8 8 21

XXL 4-1/4 8-1/2 8-1/2 21-3/4

Tolerance ±1/4 ±1/4 ±1/4 ±1/2

3.11.1 Measurement Guidance.

A. Cuff Width.

• Relaxed - Measurement shall be taken across the top opening of the cuff as is, without stretching.

• Expanded - Measurement shall be taken across the top of the cuff while being stretched.

Do not extend cuff past sides of sock.

B. Upper Width. Measurement shall be taken across seam where sock and cuff are joined.

Do not stretch.

C. Total Length. Measurement shall be taken with flattened sock so as to create crease along outer edge. Begin measuring at cuff seam and walk measuring tape until intersecting toe seam.

3.12 Marking. Each individual item will have a label as shown in Figure 4 screen printed inside of the sock on the left side (as worn) near the cuff. The label shall be permanently and legibly marked with contrasting color, permanent type ink. Printed label shall be 4 (±1/4) inches wide by 5 (±1/4) inches tall.

3.13 Protective individual item storage. Two socks of the same size from the same production lot shall be laid on top of each other with the cuffs and toes in the same orientation. The pair of socks shall be folded no more than one time at or around the break in the foot. The socks shall be placed in the packaging such that no additional folds form. The IFS Information Sheet (Figure 5), printed in black ink on white paper, shall be inserted into the barrier bag prior to sealing. The socks shall be vacuum sealed in a barrier bag. The height of lettering on the IFS Care Instructions Sheet shall be

1/16 inch (minimum). The socks shall not be damaged during vacuum sealing. The vacuum-sealed barrier bag shall be firm and compact when inspected visually for defects in accordance with Table

VII. Any unacceptable vacuum sealed barrier bags shall be resealed. Barrier bag marking shall be in accordance with paragraph 3.13.2.

3.13.1 Unit pack barrier bag material. When tested in accordance with Table VI, the material for the unit pack barrier bag for the IFS shall conform to the requirements given in Table V. The material shall be chemically resistant against standard chemical warfare agents. The unit pack barrier bag material shall be constructed from colored, flexible, multi-layer formable foil film with an opaque finish meeting the requirements of 3.13.1.1. The color of the unit pack barrier bag material for shall closely approximate one of the SAE-AMS-STD-595 colors identified as “Green”. As an alternate, the unit pack barrier bag may be constructed from flexible, multi-layer nylon foil film with an opaque finish, in the appropriate color, meeting the requirements of 3.13.1.2. See 6.7 for known sources of materials that have demonstrated the ability to meet these requirements. The contractor shall provide

Certificates of Compliance verifying the thickness requirements specified in 3.13.1.1 and 3.13.1.2.

Barrier bags shall have a tear, nick, or “V” notch, one-eighth (1/8) (+1/16) inch deep in at least one edge, 2 (±1/2) inches from the end of the bag. The barrier bag shall have three sides sealed, with the approximate inside dimensions of 9-1/4 (+1/2) inches by 11 (+1/2) inches for all sock sizes and outside dimensions of 10-1/4 (+1/2) inches by 12-3/4 (+1/2) inches prior to sealing. These dimensions allow for a 1/2-inch seal width on all sides after the contents are inserted.

3.13.1.1 Formable foil material. The formable foil film shall be constructed as follows:

0.0012 inch Oriented Polypropylene

Adhesive layer

0.00175 inch Aluminum Foil

Adhesive layer

0.003 inch Cast Polypropylene

3.13.1.2 Nylon foil material. The nylon foil film shall be constructed as follows:

60g nylon

0.0005 inch Polyethylene

0.00035 inch Aluminum Foil

0.004 inch polyolefin coextrusion

Table V. IFS unit pack barrier bag material requirements.

Characteristic Requirement Section 4

Reference

Water vapor transmission rate 0.30 g/cm2 / 24 hrs. (max) 4.5.1.6.1

Tensile strength Machine – 24 lb. (min)

Cross Machine – 20 lb. (min)

4.5.1.6.2

Tear resistance Machine – 140 grams (min)

Cross Machine – 100 grams (min)

4.5.1.6.3

Seal strength 10 lb. / in (min) 4.5.1.6.4

Ultraviolet resistance No alligatoring or detrimental degradation to the sample after

250 hours of exposure.

4.5.1.6.5

Chemical agent resistance, 10 g/m2 HD

New

After decontamination with M295

< 1.0 (µg/cm2)

< 2.0 (µg/cm2)

4.5.1.6.6

3.13.2 Barrier bag markings. The IFS shall be packaged with one pair in each barrier bag that identifies the content’s size by a method readable by individuals in Mission Oriented Protective

Posture (MOPP) 4. The markings shall be printed onto the packaging or printed onto an adhesive label and the label shall be attached to the barrier bag such that it does not lift or fall off after exposure to weather or cleaning. The barrier bag shall be labeled with the information outlined in Figure 1, as applicable to the item contained in the barrier bag, on the face side of the barrier bag. The sizing chart in Figure 7 shall be printed on the back of the barrier bag. The height of lettering on the label will be no smaller than 1/4 inch and the color of the lettering shall be black. Markings denoted with X below will be printed when the bags are made. Markings denoted by # below will be stamped or applied with labels during IFS packaging. Superscript numbers are references to notes below the figure; they shall not be printed on bags.

NSN: 1/ XXXX-XX-XXX-####

CAGE CODE: XXXXX

NOMENCLATURE/ITEM DESCRIPTION: SOCKS, CHEMICAL PROTECTIVE

U/I: 2/ PR

SIZE ###

CONTRACT NUMBER XXXXXXXXXXXX

MFR: XXXXXXXXXXXXX

MILITARY PRESERVATION Level A

INSPECTION/TEST DATE (MM/YYYY): ##/#### 3/

LOT NUMBER: 4/ #################

MFG DATE (MM/YYYY): 5/ ##/####

Figure 1. Barrier bag label.

1/ National Stock Number 2/ Unit of Issue 3/ MFG Date + 5 years (calculated date to be entered) 4/ See 3.15 for lot numbering guidance 5/ Manufacture Date shall be the month and year the first IFS in the lot is produced.

3.13.2.1 Barrier bag safety warning. The following text shall be printed below the information from Figure 1 on the front of the barrier bag. This text shall be in all upper case and text size shall be no smaller than 1/8 inch.

SAFETY WARNING: CHEMICAL PROTECTIVE SOCKS ARE NOT INTENDED TO BE

WORN DIRECTLY AGAINST SKIN. IF THE CHEMICAL PROTECTIVE SOCKS ARE

EXPOSED TO AQUEOUS FILM-FORMING FOAM (AFFF) OR ARE SUSPECTED TO HAVE

BEEN EXPOSED TO AFFF, REPLACE THEM IMMEDIATELY. FAILURE TO REPLACE THE

CHEMICAL PROTECTIVE SOCKS MAY RESULT IN ILLNESS, SERIOUS INJURY OR

DEATH. DO NOT WEAR SOCKS PAST EXPIRATION DATE OR AFTER ALL CIRCLES ARE

MARKED OUT.

3.13.2.2 Unit pack barrier bag sealing. Each individual pair of IFS, from the same production lot, shall be folded and individually placed in a unit pack barrier bag (see 3.13). The unit pack barrier bag material shall show no evidence of delamination, degradation, or foreign odor when heat sealed or fabricated into bags. Each unit pack barrier bag shall have air evacuated from ambient pressure (0 inches of mercury gauge reading) to a vacuum of 20-24 inches of mercury and be heat sealed while maintaining the specified vacuum. The closure shall be heat sealed to a minimum seal strength of 10 pounds per linear inch when tested in accordance with 4.5.1.6.4. Closures may be made by dielectric, impulse, or ultrasonic process and shall be 3/16 to 1/2 inch wide, uniform and smooth. The sealed unit pack barrier bag shall not show evidence of leakage when examined after 24 hours.

3.13.2.2.1 Reseal/retest of unit pack barrier bag. IFS removed from their unit pack barrier bags for sampling requirements shall show no evidence of damage when inspected visually in accordance with

4.6.1. A non-defective IFS within a damaged unit pack barrier bag shall be resealed as described in

3.13.2.2. Dimensional requirements of 3.13.1 do not apply to bags resealed after sampling.

3.14 Shipping containers. Packaged IFS shall be packed in a fiberboard shipping container, constructed in accordance with style RSC, type CF, class domestic, variety DW, grade 275 of ASTM

D5118/D5118M. The inside dimensions of each shipping container shall approximate (±1/2 inch);

23-1/2 inches in length, 15-1/2 inches in height and 16 inches in width, sufficient to accommodate the one hundred (100) bagged IFS. The IFS in protective individual storage bags shall be packed flat. All voids shall be filled with commercial grade kraft paper. The use of materials composed of the highest percentage of recovered materials practical is encouraged. Each container shall be securely closed in accordance with ASTM D1974.

3.14.1 Shipping container markings. Shipping containers shall be marked with the information in

Figure 2. Lettering size shall be no smaller than 1/2 inch for all lettering other than lot numbering, which shall be 3/4 inch in height. Markings may be printed or stamped directly on the container or may be printed on a label that is securely attached. Markings denoted with X below will be printed when the boxes are made. Markings denoted by # below will be stamped or applied with labels during

IFS packing. Superscript numbers are references to notes below the figure; they shall not be printed on boxes.

NSN: 1/ XXXX-XX-XXX-####

CAGE CODE: XXXXX

NOMENCLATURE/ITEM DESCRIPTION: SOCKS, CHEMICAL PROTECTIVE

U/I: 2/ PR

CONTRACT NUMBER XXXXXXXXXX

MFR: XXXXXXXXXXXXXX

MILITARY PRESERVATION Level A

INSPECTION/TEST DATE: ##/#### 3/

LOT NUMBER: 4/ ##################

MFG DATE: 5/ ##/####

SIZE ###

QUANTITY: 6/ ###

Figure 2. Shipping container markings.

1/ National Stock Number 2/ Unit of Issue 3/ MFG Date + 5 years (calculated date to be entered) 4/ See 3.15 for guidance 5/ Manufacture Date 6/ Not to exceed 100

3.15 Production lot numbering. Each production lot of IFS shall contain no more than one lot of

SPM. Lot numbers shall be assigned in the following manner: The first three characters shall identify the manufacturer. The next two digits shall identify the year of production. The next character shall identify the month of manufacture; A=January, B=February, C=March, etc. The letter “I” is not used, and therefore J=September, K=October, L=November and M=December. The next three digits shall identify the interfix number. The next character shall be a dash. The last three digits shall identify the manufacturer’s production lot. For example, a sample production lot number assigned for the first lot numbered by use of the above procedures using a March 2006 manufacture date would be

MFR06C001-001.

3.16 Radio Frequency Identification (RFID). RFID shall be done in accordance with

MIL-STD-129. Passive RFID tags must be affixed at the case (shipping and exterior container) and pallet (palletized unit load) levels.

3.17 Palletization. Palletization shall be per requirements set forth in the Palletization Instruction

(see 2.2.2).

3.18 Lot size. The production lot size for manufacture of the IFS shall be from 2,000 to 10,000 pairs (4,000 to 20,000 socks). Any deviation from this range, other than to complete a delivery order in which the last production lot requires less than 2,000 pairs of IFS, will be authorized only with prior approval of the Government.

The selectively permeable material will serve as the key component for identifying an IFS lot.

Each lot of IFS will be manufactured from only one lot of selectively permeable material. The manufacturer will be required to maintain material component records of all materials for no less than

10 years and provide those records to the JEFS’ mailbox (smblogcompsclcst@usmc.mil) upon request.

3.19 Toxicity. The finished IFS shall not present a health hazard and shall show compatibility with prolonged, direct skin contact when tested as specified in 4.5.1.3.1. Chemicals recognized by the

Environmental Protection Agency as human carcinogens shall not be used.

3.20 Workmanship. The sock system shall conform to the quality of product established by this purchase description. The end item shall not exhibit any of the critical defects in Table VII.

4. VERIFICATION.

4.1 Classification of inspection. The inspection requirements specified herein are classified as follows:

• Qualification Inspection (QI) (See 4.2)

• First Article Inspection (FAT) (See 4.3)

• Conformance Inspection (CI) (See 4.4)

4.1.1 Inspection conditions. All inspections shall be performed in accordance with all the requirements of referenced documents, unless otherwise specified, excluded, amended, modified or qualified in this purchase description or applicable procurement documents (see 6.2).

4.1.2 In-process inspection. Socks shall be inspected at appropriate times during the production process to ensure that they have no defects. Defects (Table VII) identified in a sock during production shall be cause for repair or rejection of the sock.

Table II. IFS Testing.

Section 3

Parameter

Section 4

Verification Test Method QI FAT CI

Table I Protect the Warfighter from liquid/vapor chemical agents –

HD

10 g/m2 challenge

4.5.1.1 TOP 8-2-501

New (unlaundered) X X X

Laundered (2X) X X X

Hydraulic Fluid (unlaundered) X X

Table I Protect the Warfighter from liquid/vapor chemical agent –

TGD

10 g/m2 challenge 4.5.1.1 TOP 8-2-501

New (unlaundered) X X X

Wet Sweat (unlaundered) X X

Table I Protect the Warfighter from liquid/vapor chemical agents –

VX

10 g/m2 challenge

4.5.1.1

TOP 8-2-503 X

Table I Dimensional Stability 4.5.1.2 Per protocol X X

3.11 Finished Dimensions 4.5.1.4.1 Measurement X X X

Table I Breaking Strength 4.5.1.5.1 ASTM D 5034 X X X

Table I Seam Strength 4.5.1.5.2 ASTM D 751 X X X

Table I Leakage 4.5.1.5.3 See 4.5.1.5.3 X X X

Table I Puncture Propagation Tear 4.5.1.5.4 ASTM D 2582 X X X

Table I Hydrostatic Resistance 4.5.1.5.5 ASTM D 751 X X X

Table I Water Vapor Permeability 4.5.1.5.6 ISO 15496 X X X

Table I Material Weight 4.5.1.5.7 ASTM D3776 X

Table I Thickness 4.5.1.5.8 ASTM D1777 X

Table I System Weight 4.5.1.5.7 ASTM D3776 X

Table I

Protection after contamination:

Sweat

Seawater Immersion

JP-8

Hydraulic Fluid

5% bleach solution

DEET

IDK

4.5.1.1 TOP 8-2-501 X

Table VI. IFS testing. Continued

Section 3

Parameter

Section 4

Verification Test Method QI FAT CI

Table I Melting 4.5.1.3.2 ASTM D751 X

Table I Health hazards 4.5.1.3.1 USAPHC

Review X

Table V Unit Pack Barrier Bag Testing 4.5.1.6 Per protocol X X

4.2 Qualification inspection. Periodically, the Government may conduct a PQT program to solicit and potentially qualify new sources of material for use in the IFS. Qualification inspection (QI) shall consist of the examinations and tests specified in Table VI. The qualification inspection shall be unacceptable if the applicable requirements referenced in Table VI are not met.

4.2.1 Qualification inspection samples. See 6.3 for information pertaining the Qualification

Inspection samples.

4.3 First article inspection. The first article inspection shall consist of the examination and tests described in 4.3.2 and 4.3.3, and in the FAT column of Table VI, to determine that the production item conforms to the requirements of this purchase description. First article inspections will be performed when specified in the contract (see 6.2). The first article inspection shall be unacceptable if the requirements referenced in Table I are not met.

4.3.1 First article samples. First Article inspection will be performed when specified in individual delivery orders placed under the contract. The first article samples shall consist of 30 socks (15 pairs of socks) with a distribution of sizes that represents proportionally all sizes included in the contract.

Samples shall be made from the patterns and equipment representative of that which the contractor intends to use for production of the item, properly marked and bagged in accordance with 3.13 for first article examinations and tests.

4.3.2 First article examination. Each first article sample shall be examined for all defects specified in Table VII. When specified, the manufacturer shall submit the quantity of items as specified in the contract (see 6.2). Presence of any critical defect, or more than 2 major defects, or more than five combined (major and minor) defects will be cause for rejection of First Article samples.

4.3.3 First article tests. Following the first article examination (see 4.3.2) conducted by the

Government, the first article samples shall be subjected to First Article Testing and will be tested in accordance with Table VI. The failure of any test shall be cause for rejection of the First Article.

4.4 Conformance inspection. Production lot samples will be subjected to testing in accordance with Table VI to ensure that production items meet purchase description requirements prior to acceptance by the Government. The sample unit shall be one (1) pair of socks marked and packaged in accordance with 3.13. The presence of any critical defects will be cause for rejection of the lot. The

Government will conduct Conformance Inspections (CI) on completed and packaged sock pairs submitted for acceptance, consisting of inspections specified in 4.4.1 and Conformance Inspection

Testing (CI) as specified in 4.5. The Defense Contract Management Agency (DCMA) Quality

Assurance Representative (QAR) will randomly select 36 pairs of IFS from each lot, twelve (12) of which will be submitted for CI and twenty-four (24) for shelf-life extension testing (see 4.6.3). The sampled items shall cover the lots entire production period with samples taken near the beginning, middle and end of each production run as determined by when the socks are packed in boxes. Sizes included in the CI and surveillance sampling shall be representative of the size distribution in the lot.

CI will be conducted in accordance with 4.5.

4.4.1 Individual critical defect examination. The Contractor shall examine 100 percent of the items for the critical defects listed in Table VII. Any item found to contain a critical defect shall be rejected and shall not be included in the production quantities.

4.4.2 Visual examination. Sampling for visual examination shall be in accordance with

ANSI/ASQ Z1.4. The Government will visually examine the selected samples for defects listed in

Table VII. The lot size shall be expressed in pairs of IFS items. The sample unit for inspection shall be one sock, but the selection shall be by pairs. Defects for pairing (e.g., differing sizes packaged together) shall be classified as a single defect. The inspection level shall be in accordance with the contract. The presence of any critical defect, or more than two major defects, or more than five combined (major and minor) defects shall be cause for rejection of the lot.

4.5 Conformance inspection testing. The Government will conduct CI tests (Table VI) on lots of manufactured IFS submitted for Government acceptance. The contractor is advised that delivery of the surveillance test quantities and delivery of the completed lots will not be authorized until the

Government has determined that the IFS subjected to CI have been found to be acceptable. Physical properties will not be tested according to material orientation commonly specified as warp and fill.

If any lot fails a test during CI, the laboratory conducting the testing will verify all procedures and equipment; and will validate the results. If the validation test still indicates failure, the Government contracting office shall notify the contractor, in writing, providing the test results including both individual point and summary statistics. If requested by the contractor, failed lots shall be retested at the Government’s expense within 30 days of the retest samples reaching the test facility. The retest samples will be taken from the original CI samples if feasible, otherwise additional items will be randomly chosen from the entire lot. At a minimum, all failed tests will be repeated. The contractor may, upon request and space availability and at the contractor’s own expense, observe the retesting of samples. Failure in initial testing shall not be cause for rejection if retest results are in compliance with the requirements set forth in Table I. Failure of such retest shall constitute failure of the lot. No socks from a failed lot may be used to fulfill the requirements of a contract or order.

4.5.1 Material and system tests.

4.5.1.1 Chemical agent resistance. The IFS will be tested for chemical agent resistance in accordance with Table VI to verify that the protection meets the criteria in Table I. Swatch testing will be conducted per TOP 8-2-501 for agents TGD and HD, and TOP 8-2-503 for agent VX in accordance with Table VI. Testing with chemical agent VX will only be conducted as part of the qualification of a new material. Sampling intervals for chemical testing will be at 6, 16 and 24 hours.

System characteristics.

4.5.1.2 Dimensional stability. Material will be measured before laundering and after two (2) laundering cycles are conducted in accordance with the IFS care instructions. Measurements will be taken along the length and width of the material. The dimensions of the item after the laundering cycles (A) will be compared to the dimensions of the same item prior to the laundering cycles (B) to calculate a percentage of shrinkage (S). Shrinkage will be calculated according to the formula S =

100((B-A)/B).

4.5.1.3 Safety.

4.5.1.3.1 Health hazards. The U.S. Army Public Health Command (USAPHC) shall review data supplied by manufacturers pertaining to chemical composition, history of commercial use of the components in the marketplace, and Safety Data Sheets. Human and animal toxicity studies, as well as epidemiological information for the product, must be provided if available. USAPHC will review all data and issue a Toxicity Clearance if the product is suitable for its intended use from a standpoint of toxicity.

4.5.1.3.2 Melting. The Government will subject IFS to melt testing in accordance with ASTM

D751, Standard Test Methods for Coated Fabrics as referenced in NFPA 1975, 2004 Edition, Section

8.3, Thermal Stability Test One. The test temperature will be 265° C (510° F) for a duration of 6 hours.

4.5.1.4 Integrated logistics support.

4.5.1.4.1 Logistical considerations. IFS finished dimensions and visual inspection will ensure that sizing and markings are appropriate.

4.5.1.5 Physical performance characterization. Eight individual IFS items (four pairs) from the items selected in 4.5 shall be tested for physical property performance in accordance with the specifications shown in Table I and the tests below. Failure to meet these requirements will be cause for rejection of the lot. No more than one test specimen for each test shall be cut from the same sample. For the purposes of physical property testing, sample orientation will be defined as follows.

The “upper” direction describes the material orientation between the cuff and the heel. The “foot” direction describes the material orientation between the heel and the toe.

4.5.1.5.1 Breaking strength. The IFS material breaking strength shall be tested as specified in

Table VI and results compared to the requirements in Table I. The number of replicates will be eight

(one specimen from eight different IFS) per lot with four specimens cut in the upper direction and four specimens cut in the foot direction. Specimen size shall be 4” x 6” with the long dimension parallel to the test direction. Use 100lb. load cell.

4.5.1.5.2 Seam strength. The IFS material seam strength shall be tested as specified in Table VI and results compared to the requirements in Table I. The number of replicates will be eight (one specimen from eight different IFS) per lot.

4.5.1.5.3 Leakage. The IFS will be evaluated for leakage in accordance with, and conform to, the test apparatus and procedure described in 4.5.1.5.3.1 and the accompanying notes. Four items shall be tested. Any failure of this test shall be cause for rejection of the lot. The same four items can be used for other testing once the IFS have been dried for 24 hours.

4.5.1.5.3.1 Leakage apparatus and procedure. Using compressed air, the W. L. Gore Bootie Test

Machine, Model BTMCE inflates one pair of IFS and submerges them into a water-filled tank, allowing the machine operator to observe if the IFS has any leaks. More than one bubble from the same location in seven seconds is considered a leak. Leaks from the taped areas of the sock may be heat pressed or repaired in accordance with 3.10 and the leakage testing repeated. Full Details of the

BTMCE can be found in the BTMCE Operator’s Manual, revision date 5 November 1998. An excerpt describing the machine operation is given in Figure 6.

4.5.1.5.4 Puncture propagation tear. The IFS material puncture propagation shall be tested as specified in Table VI and results compared to the requirements in Table I. The number of replicates will be eight (one specimen from eight different IFS) per lot. Use carriage #5 for testing samples.

4.5.1.5.5 Hydrostatic resistance. The IFS material hydrostatic resistance shall be tested as specified in Table VI and results compared to the requirements in Table I. The number of replicates will be eight (one specimen from eight different IFS) per lot. Report value to the nearest 2 psi. Specimens shall be conditioned at 70°F, 65% RH prior to testing. No restraining or supporting fabrics are to be used during the testing. Orient specimen with the black textile side towards the water.

4.5.1.5.6 Water vapor permeability. The IFS material water vapor permeability shall be tested as specified in Table VI and results compared to the requirements in Table I. The number of replicates will be five (one specimen from five different IFS) per lot.

Five (5) individual 4” x 4” specimens shall be pre-conditioned at 73°F, 95%RH for 24 hours then tested per ISO 15496 with the following exception. During the 15 min equilibration period, a conditioning cup with 120 g of the saturated potassium acetate solution shall be inverted and centered on the specimen surface. Prior to placing the conditioning cup on the bath, the cup shall be gently shaken down ensuring that the potassium acetate solution evenly covers the membrane. After the 15 min equilibration period, the conditioning cup shall be removed and replaced with the measuring cup.

The following calculation should be used to convert Water Vapor Permeability (WVP) to Moisture

Vapor Transmission Rate (MVTR):

[Note: Units are---- MVTR in g/(m2*24hr) and WVP in g/(Pa*m2*h)]

4.5.1.5.7 Weight. The Government will measure the weight of the IFS material as well as a pair of

IFS socks per ASTM D3776 or similar method. The median size in the tariff will be chosen for measurement or, in the event there is an even number of sizes, the two middle sizes will be averaged.

This weight will be taken both in and out of packaging, and weights will be recorded.

4.5.1.6 Unit pack barrier bag testing. Each master production lot of unit pack barrier bag material shall be assessed for physical and chemical protective properties as cited below.

4.5.1.6.1 Water vapor transmission rate. Unit pack barrier bag materials shall be tested to determine the water vapor transmission rate in accordance with ASTM F1249 to validate the ability to meet the requirements cited in Table V.

4.5.1.6.2 Tensile strength. Unit pack barrier bag material tensile strength shall be tested in accordance with ASTM D882 to validate the ability to meet the requirements in Table V.

4.5.1.6.3 Tear resistance. Unit pack barrier bag material tear resistance shall be tested in accordance with ASTM D1922 to validate the ability to meet the requirements in Table V.

4.5.1.6.4 Seal strength. Unit pack barrier bag materials shall be tested to determine the seal strength in accordance with ASTM F88 to validate the ability to meet the requirements in Table V.

4.5.1.6.5 Ultraviolet resistance. Unit pack barrier bag material shall be exposed to ultraviolet light for a period of 250 hours in accordance with ASTM D 3218. Following exposure, the samples will be examined to ensure that they meet the requirements in Table V.

4.5.1.6.6 Chemical Resistance. Chemical protective properties of unit pack barrier bag materials shall be maintained throughout the expected life cycle, including after decontamination in accordance with Table V. Failure of any sample shall constitute failure of the lot.

4.5.1.6.6.1 Unit pack barrier bag materials without decontamination. Unit pack barrier bag materials shall be tested for a period of 24 hours against a challenge of 10 g/m2 HD, in accordance with TOP 8-2-501 to validate the ability to meet the requirements in Table V.

4.5.1.6.6.2 Unit pack barrier bag material after decontamination. Unit pack barrier bag materials shall be challenged with 10 g/m2 HD for a period of 24 hours, decontaminated using M295 decontamination wipe, then tested for a period of 24 hours against a challenge of 10 g/m2 HD in accordance with TOP 8-2-501 to validate the ability to meet the requirements in Table V.

4.6 Visual examination.

4.6.1 Visual defect examination. Sampling for visual examination shall be in accordance with

ANSI/ASQC Z1.4. The Government shall visually examine selected samples for defects listed in

Table VII. Within any production lot, the presence of any critical defect, or more than two major defects, or more than five combined (major and minor) defects shall be cause for failure of the entire lot. The lot size shall be expressed in pairs of IFS socks. The sample unit shall be one sock, and the selection shall be by pairs. Defects for improper pairing (e.g. differing sizes packaged together) will be classified as a single defect. The packaged sock pairs shall be examined for the defects as specified in Table VII. Any item containing a critical defect shall be cause for failure of the lot. The packaged end item shall be examined for defects applicable to the packaging and labeling.

Table VII End-item visual defects.

Examine Defect Classification

Critical Major Minor

Pairing and

Packaging

Different sizes packaged together 101

Sock packaged inside out 102

Construction and

Workmanship

Any cut, tear hole, mispick or rupture through laminate material 1

Any hole or mispick through the cuff material that is:

≥ 1/2 inch in length or width 2

< 1/2 inch in length or width 103

Any weakening defect such as: thin spots or abraded areas in the material. Thin spots are defined as obvious visual differences within the laminate that appear lighter or allow significantly increased light penetration. 104

Not clean, i.e. dirty and cannot be cleaned with a non-petroleum based cleaning agent. Any stains, spots, grease, oil, or ink. 201

Any visible portion of the material stiffened or scorched by any process of manufacturing 105

Stitching or material caught in sewing, thread ends unsecured 106

Parts mixed from different material lots in the same pair or lot 3

Puckering or wrinkling at the seams, foreign matter or similar defective condition which results in a defect (See Note1) 107

Any repair patch on the body of the sock.

Delamination in materials or seam tape lift greater than 1/8 inch at side, end or edge 5

Any edge of seam tape less than 1/8 inch from seam allowance. (Note: The seam allowance may shift from side to side during the sealing process. This does not affect the serviceability of the sock.) 108

More than two seam tape repairs on a single sock 109

Table VII. End-item visual defects. – continued

Examine Defect

Classification

Critical Major Minor

Construction and

Workmanship

- continued

Any tape repair over 1 inch long

(Note: At the end of a seam seal tape roll, the new tape application will overlap the tape end by

1 inch (splice). A second application of tape on a seam may be required. This application shall not be longer than 5 inches.) 110

Any open seams. 6

Any required stitching not covered by seam tape 7

Poor stitch tension at the cuff interface or broken stitches at the cuff interface 111

Markings and

Identification

Omitted, illegible, incomplete, or incorrect 8

Marking not in accordance with the requirements

Not permanent, i.e., can be easily rubbed off with a moistened thumb 112

Note 1: Weakening defects and general defective condition defects as identified in Table VII will be subject to further Government review if the criteria for lot rejection are met as identified in 4.6.1. The Government will consult with the manufacturer to investigate the impact of these defects. This may require further testing and/or sampling which will be dependent on the identified defect. If the investigation determines the IFS performance is still acceptable, the defects in question will no longer be identified as a defect. The lot will be found acceptable from a Visual Examination perspective when the original criteria are met.

4.6.1.1 Vacuum seal. Vacuum sealed packages will be left to rest for a period of 24 hours after sealing is completed. At the conclusion of the 24 hours, packages will be checked to ensure that they have maintained their vacuum. Any package that has not maintained vacuum will be resealed and rechecked.

4.6.2 End item dimensional examination. Samples shall be measured in accordance with Figure 3 and measurements shall be compared to Table IV. Any dimension that is not within tolerance shall be classified as a defect.

4.6.3 Shelf-life extension testing/set-aside. From every production lot, a quantity of 24 pairs of production lot samples will be randomly pulled by the DCMA Quality Assurance Representative

(QAR) to be shipped to the Joint Service Set Aside Program for shelf-life extension testing. The sampled items shall cover the lot’s entire production period with samples taken near the beginning, middle and end of each production run as determined by when the IFS items are packaged in boxes.

5. PACKAGING

5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order (see 6.2). When packaging of material is to be performed by DoD or in-house contractor personnel, these personnel need to contact the responsible packaging activity to ascertain packaging requirements. Packaging requirements are maintained by the Inventory Control Point’s packaging activities within the Military Service or Defense Agency, or within the military service’s system commands. Packaging data retrieval is available from the managing Military department’s or

Defense Agency’s automated packaging files, CD-ROM products, or by contacting the responsible packaging activity.

6. NOTES

(This section contains information of a general or explanatory nature that may be helpful, but is not mandatory unless stated in the previous sections of this document or in the contract.)

6.1 Intended use. The sock is intended for use by combat personnel to provide protection against chemical and biological warfare agents in liquid, vapor and aerosol form.)

6.2 Acquisition requirements. Acquisition documents must specify the following:

a. Title, number, and date of this purchase description

b. Special provisions for verification inspection of Life Support Clothing and

Equipment

c. Sizes required (see 1.2.1.1), quantity, NSN

d. The specific issue of individual documents referenced (see 2.2 & 2.3)

e. When a first article is required (see 3.2, 4.3, and 6.4).

f. Conformance…