Att 003 TF Mitten Liner Spec_04082021 PDF x 2.pdf

Comments, suggestions, or questions on this document should be addressed to Marine Corps Systems Command, 2000 Lester Street, Quantico, VA 22134 ATTN: SEAL-SE-STDS or emailed to USMC_STDZ@usmc.mil.

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AMSC N/A FSC 8315

DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

INCH-POUND

MIL-TFM-005

2 April 2021

DETAIL SPECIFICATION

MITTEN LINER, TRIGGER FINGER, U.S. MARINE CORPS

This specification is approved for use by the United States Marine Corps and is available for use by all Departments and Agencies of the Department of Defense.

1. SCOPE

1.1 Scope. This document covers the requirements for the U.S. Marine Corps Trigger Finger Mitten Liner. This item is intended for wear by military personnel of the Department of Defense during extreme cold weather (ECW) conditions in combination with a Trigger Finger Mitten Shell or a ECW Mitten Shell conforming to MIL-TFM- 003 and MIL-XXX-XXX respectively.

1.2 Classification. The Mitten Liner shall be of one type and sizes as specified (see 6.1).

1.2.1 Schedule of sizes.

SMALL MEDIUM LARGE XLARGE

2. APPLICABLE DOCUMENTS

2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification 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 of documents cited in sections 0 and 0 of this specification, whether or not they are listed.

2.2 Government documents.

2.2.1 Specifications, 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.

DEPARTMENT OF DEFENSE SPECIFICATIONS

MIL-C-3735 Cuffs, Knit, Wrist and Ankle, and Cloth, Knitted MIL-DTL-32075 Label: for Clothing, Equipage, and Tentage, (General Use)

A-A-59826

MIL-TFM-002

Thread, Nylon Cloth, 70D Nylon Ripstop

MIL-TFM-001 Cloth, Napped French Terry MIL-PRF-32567 Batting, Synthetic Fibers, Unquilted

(Copies of these documents are available online at http://quicksearch.dla.mil/.)

mailto:USMC_STDZ@usmc.mil http://quicksearch.dla.mil/

MIL-TFM-005 DATED 2 April 2021

2.3 Non-Government publications. The following documents 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.

AMERICAN ASSOCIATION OF TEXTILE CHEMISTS AND COLORISTS (AATCC)

AATCC EP9 Evaluation Procedure for Visual Assessment of Color Difference of Textiles AATCC TM20 Test Method for Fiber Analysis: Qualitative AATCC TM118 Test Method for Oil and Stain Resistance AATCC TM127 Water Resistance: Hydrostatic Pressure AATCC TM135 Test Method for Dimensional Changes of Fabrics After Home Laundering

(Copies of these documents are available online at https://www.aatcc.org/.)

AMERICAN SOCIETY FOR QUALITY (ASQ)

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

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

ASTM INTERNATIONAL

ASTM D737 Air Permeability of Textile Fabrics

ASTM D1776

ASTM D1814

Standard Practice for Conditioning and Testing Textiles Standard Test Method for Measuring Thickness of Leather Units

ASTM D1777 Standard Test Method for Thickness of Textile Materials

ASTM D1912

ASTM D2130

Standard Test Method for Cold-Crack Resistance of Upholstery Leather Standard test Method For Diameter of Wool and Other Animal Fibers by Microprojection

ASTM D2209 Standard Test Method for Tensile Strength of Leather ASTM D2617 Standard Test Method for Total Ash in Leather ASTM D2807 Standard Test Method for Chromic Oxide in Leather (Perchloric Acid Oxidation) ASTM D2810 Standard Test Method for pH of Leather ASTM D2582 Standard Test Method for Puncture-Propagation Tear Resistance of Plastic Film and Thin Sheeting ASTM D2821 Standard Test Method for Measuring the Relative Stiffness of Leather by Means of a Torsional Wire Apparatus ASTM D3495 Standard Test Method for Hexane Extraction of Leather ASTM D4705 Standard Test Method for Stitch Tear of Leather, Double Hole ASTM D3775 Standard Test Method for End (Warp) and Pick (Filling) Count of Woven Fabrics ASTM D3776/D3776M Standard Test Methods for Mass Per Unit Area (Weight) of Fabric ASTM D3884 Standard Guide for Abrasion Resistance of Textile Fabrics (Rotary Platform, Double-Head Method) ASTM D5052 Standard Test Method for Permeability of Leather to Water Vapor ASTM D6076 Standard Test Method for Shrinkage Temperature of Leather

ASTM D6193

ASTM D6182

Standard Practice for Stitches and Seams Standard Test Method for Flexibility and Adhesion of Finish on Leather

ASTM D7255 Standard Test Method for Abrasion Resistance of Leather

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

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION

https://www.aatcc.org/ http://www.asq.org/ http://www.astm.org/

ISO 11640

ISO 11644

ISO 17075

Leather – Tests for Color Fastness – Color Fastness to Cycles of To-and-fro Rubbing.

Leather – Test for Adhesion of Finish Leather – Chemical Tests – Determination of Chromium (VI) Content

(Copies of these documents are available online at http://www.iso.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, 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 Inspections.

3.1.1 First article. When specified (see 0), a sample shall be subjected to first article inspection in accordance with 4.2.

3.1.2 Conformance inspection. When specified a sample shall be subjected to a conformance inspection in accordance with 4.4

3.2 Standard sample. The finished Trigger Finger Mitten Liner and design shall match the standard sample (see 0) for design and all other characteristics or acceptance criteria for which a standard sample is referenced.

3.3 Recycled, recovered, environmentally preferable, or biobased materials. Recycled, recovered, environmentally preferable, or biobased 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 and components. The materials and components shall conform to applicable specifications, standards, drawings, and patterns required herein.

3.4.1 Liner shell material. The cloth used to construct the liner outer shell shall be a water repellent urethane coated 70 denier nylon ripstop conforming to MILTFM-002 Cloth, 70D Nylon Ripstop (see 6.5.1).

3.4.2 Leather. The leather used to construct the trigger finger shall be a 2.25 – 2.75 ounce full grain goatskin conforming to the requirements in table I when tested as specified. The leather shall be chrome tanned, light finish, fungicide and durable water repellent treated, backed by a waterproofing layer. The shade of the leather shall approximate coyote 498, conforming to Leather Shade Standard Number 3898, and shall be drum dyed, struck through from grain to flesh.

TABLE I. Leather characteristics and requirements.

Characteristic Requirement Verification Thickness, ounces 2.25 – 2.75 Table XI Moisture Vapor Transmission Rate, grams/square meter/24 hours (minimum)

500 Table XI

Water Absorption Resistance, percent absorption (maximum) 1/

80% of samples - 15 Table XI

Oil and Stain Resistance, Grade (minimum) 4 Table XI Abrasion Resistance at 1000 cycles with CS-10 wheel and 500 gram load

No russet exposure Table XI

Stiffness, degrees (maximum) 1/ 80% of samples – 50 Table XI Stitch Tear, pounds (minimum) 1/ 80% of samples - 17 Table XI Elongation at 25 pound load, percent (maximum) 1/ 80% of samples - 25 Table XI http://www.iso.org/

Shrink Temperature, degrees Celsius (minimum) 98 +/- 0.5 Table XI Veslic rubbing abrasion, 80 cycles (minimum) 2/ 4; No damage Table XI Cold Crack Resistance, degrees Celsius No cracking at -30 Table XI Finish Adhesion, Newtons/10 millimeters, dry & wet (minimum)

4.0 N / 10 mm

Table XI

Flexibility and Adhesion of Finish at 30,000 cycles, degrees Fahrenheit

No cracking or delamination at -20

Table XI

Hexane Soluble Materials, percent (maximum) 3/ 25 Table XI Chromic Oxide, percent (minimum) 3/ 3.0 Table XI pH value (minimum) 3.3 Table XI Total Ash, percent (maximum) 3/ 9.0 Table XI Determination of Chromium (VI) Content, mg/kg < 3 Table XI

FOOTNOTES:

1/ Eighty percent (80%) of tested samples required to pass.

2/ Value given using the AATCC Grey Scale.

3/ Calculated on moisture-free basis.

3.4.3 Grip, fingertips. Grip material shall be sewn at the fingertips on the outside of the liner to aid in maintaining grip when the liner is used alone as well as in combination with a shell. The material shall be a 100 denier polyester with a raised hexagonal structure made of silicone and shall conform to the requirements listed in table II when tested as specified.

TABLE II. Grip requirements.

Characteristic Requirement Verification Weight, ounces per square yard 11.0 – 14.0 Table XI Air Permeability, CFM (minimum) 18 Table XI Thickness 0.030 – 0.035 Table XI Fabric Count, yarns per inch (minimum): Table XI Warp 125 Table XI Fill 100 Table XI Puncture Propagation, kilogram-force (minimum):

Table XI

Warp 5 Table XI Fill 4 Table XI Abrasion, cycles (minimum) 3000 Table XI Hydrostatic, centimeters (minimum) 18 Table XI

3.4.4 Lining, inside cuff hem and trigger finger. The material used to line the inside cuff and trigger finger shall be a 100% wool napped French terry, conforming to MIL-TFM-001

3.4.5 Lining, front of hand, back of hand, and thumb. The lining used on the front of hand, back of hand, and inner and outer thumb, shall be a napped lay-in knit fabric. The lay-in for the fabric shall be 100% wool and the knit back shall be a 100% recycled polyester. The 100% wool lay-in shall make up 70% (+/- 2%) of the total weight of the fabric and the recycled polyester back shall make up 30% (+/-2%) of the total fabric weight. The wool fiber shall be carded and spun into single yarns. One end of wool yarn shall be laid in per knit course. After knitting, the fabric shall be scoured and napped to form a disoriented pile on the face to meet a minimum thickness of 0.090 inches measured under 0.1 pounds per square inch. The shade of the fabric shall be natural. The napped lay-in shall conform to the requirements listed in table III when tested as specified.

Table III. Napped Wool Lay-in Requirements.

Fiber Content 100% Wool lay-in, 100% recycled polyester back Table XI

Weight - ounces per square yard

15.0 – 16.0 Table XI

Thickness – inches, under

0.1 pound per square inch

0.090 – 0.1 Table XI

Grade No lower than a 54’s grade Table XI

3.4.6 Insulation. The insulation used in between the shell and lining fabric on the front of hand, back of the hand, and outer thumb, shall conform to Type I, Class 2 or 3, Type II, Class 3, or Type III, Class 4 of MIL-PRF-32567 with the following exceptions: denier is not required to be as specified; fibers are not required to be hollow core; the clo prior to initial laundering shall be a minimum of 2.3 and after laundering shall be a minimum of 2.1; fibers for all classes shall be polyester and one of the following, or a mixture of the following: continuous filament, staple cut fibers and/or microfibers.

3.4.7 Cuff. A cuff shall be sewn onto the liner and provide a snug fit around the wrist measuring approximately three inches at the bottom edge of the cuff, when relaxed, for all sizes. The cuff shall conform to Type I, Class 2, Size 2, of MIL-C-3735. The shade shall approximate coyote 498 (see Figure 3).

3.4.8 Thread. The thread for all construction seams shall be nylon, size letter B (Tex size 45), non-wicking, with a minimum break strength of 6 pounds. The thread shall conform to A-A-59826 Type I, Class B. The color shall approximate coyote 498 to approximate the mitten liner.

3.4.9 Labels. Each liner shall have a combination identification-size label and instruction label. The inscription shall have a minimum font size of 10 points. The inscription legibility, label, and label attachment method shall last the expected life of the liner. The fastness to laundering requirements of MIL-DTL-32075 shall apply. The labels must boldly specify size, identify the item, and provide use and care instructions.

3.4.9.1 Identification-size label. The label shall be located on the outside of the terry lining, caught in the side seam of both mittens liners in a pair. The combination identification-size label shall conform to Type VI, Class 4, MIL-DTL-32075 and shall bear the following inscription:

Identification Information

MITTEN LINER, TRIGGER FINGER

CONTRACT NO.:

CONTRACTOR’S NAME:

FIBER CONTENT:

3.4.9.2 Instruction label. The instruction label for the mitten liner shall conform to Type VI, Class 3 of MIL-DTL-32075, and shall include the following information:

Mitten Liner Instruction Label Contents

1. Machine wash on regular cycle in cold water.

2. Do not bleach.

3. Drip dry.

4. Do not iron.

5. Do not dryclean.

DO NOT REMOVE THIS LABEL

3.4.9.3 Combination identification-size-instruction label. As an alternate, a combination identification-size-instruction label may be used conforming to Type VI, Class 14 of MIL-DTL-32075.

3.4.9.4 Label/tag. Each mitten liner shall have an individual bar code placed on a paper tag for personal clothing items conforming to Type VIII, Class 17 of MIL-DTL-32075. The paper tag shall contain the NSN, and shall be standard bleached sulfate having a basis weight of 100 pounds. The paper used for the tags shall have a smooth finish to accept thermal transfer and direct printing. The tags shall have a hole and shall be attached to each item by a fastener. The tags shall be clearly legible and readable by a scanner.

3.5 Design. The Trigger Finger Mitten Liner is an inner mitten designed to be worn in combination with a mitten shell in extreme cold weather environments. The trigger finger design shall enable the wearer to move their first finger independently from the rest of the hand. The liner shall be part of a system that includes a waterproof trigger finger mitten shell conforming to MIL-TFM-003 or a waterproof extreme cold weather mitten shell conforming to MIL-XXX-XXX The liner can be worn over a glove insert if desired. The mitten liner shall consist of the following; the outside shell shall be constructed from a water repellant 70D nylon ripstop conforming to 3.4.1, and a water repellent goatskin leather trigger finger conforming to 3.4.2. Grip material conforming to 3.4.3 shall be sewn at the fingertips on the outside of the nylon ripstop. The mitten liner shall be insulated on the front and back of hand, and outer thumb, with material conforming to 3.4.6. The inside cuff and trigger finger shall be lined with napped wool French terry conforming to 3.4.4; the lining used on the front of the hand, back of hand, and inner and outer thumb shall be a napped wool lay-in conforming to 3.4.5. Each liner shall have an attached cuff conforming to 3.4.7. The liner shall have a label to identify the item, its size, and use and care.

3.6 Patterns. Standard patterns, providing a seam allowance of 1/8 inch for all mitten liner seams, 1/4 inch for lining seams, and ¾ inch for the hem, will be furnished by the Government. The list of pattern parts and computer nomenclature in table IV is provided to insure that the pattern set provided is complete. The Government patterns shall not be altered in any way, and are to be used only as a guide for cutting the contractor’s working patterns. The working patterns will be identical to the Government patterns, except that additional notching, if needed, to facilitate manufacture is possible. Also, minor modifications are permitted where necessary to accommodate the manufacturer’s processes and the use of automated equipment. These modifications shall not alter the serviceability or appearance requirements of these garments.

3.6.1 List of pattern parts. The component parts shall be cut from the specified material in accordance with the pattern parts listed in table IV.

TABLE IV. Pattern Parts.

Material Nomenclature Cut Parts Liner Shell Back of hand 1 left; 1 right

Palm 1 left; 1 right Outer thumb 1 left; 1 right Inner thumb 1 left; 1 right Main gusset 1 left; 1 right

Pinky gusset 1 left; 1 right Inside thumb gusset 1 left; 1 right Outside thumb gusset 1 left; 1 right

Leather Trigger finger back 1 left; 1 right Trigger finger palm 1 left; 1 right

Grip Fingertip grip 1 left; 1 right Lining, Napped Wool Lay-in Back of hand 1 left; 1 right

Palm 1 left; 1 right Outer thumb 1 left; 1 right Inner thumb 1 left; 1 right

Insulation Back of hand 1 left; 1 right Palm 1 left; 1 right Outer thumb 1 left; 1 right Inner thumb 1 left; 1 right

Lining, Wool Terry Trigger finger back 1 left; 1 right Trigger finger palm 1 left; 1 right Gusset 1 left; 1 right Cuff palm 1 left; 1 right Cuff back 1 left; 1 right

Rib Knit Cuff 2

3.7 Construction. Assembled mitten liners (referred to as “end item” in this specification) shall meet the following specifics in table V, needed to ensure uniform appearance, comfort and durability in garrison use, combat, and field operations. End item construction and appearance shall conform to the requirements of this document, garment characteristics specified in table V, and the finished dimensions as specified in table VIII, to maintain item configuration and compliance to end item and component performance tests (see 4.5 and 4.6).

TABLE V. Liner requirements.

Characteristic Requirement Test Method Clo (dry thermal insulation) value (minimum) 1.75 see 4.6.2

3.7.1. Stitches, seams, and stitching. All seams shall exhibit a uniform appearance and conform to ASTM D6193.

Stitch Types and stitches per inch shall be as listed in table VI. All material edges shall not ravel. Edges may be turned-in, turned-under, or serged to prevent raveling.

TABLE VI. Stitch types and stitches per inch.

Operation Stitch Type Stitches Per Inch Topstitch, single needle stitch, or straight stitch 301 8-12 Baste 301 or 101 8-12

3.7.2 Tacking and backstitching. Ends of seams and rows of stitching with 301 type stitch, when not caught in other seams or stitching, shall be securely backstitched not less than ¼ inch. Thread breaks (all stitch types) shall be secured by stitching back of the break not less than ½ inch.

3.8 Color matching.

3.8.1 Visual shade matching. The color and appearance of the cloth shall approximate the standard sample when tested as specified in 4.6.3.

3.8.2 Color. The exterior mitten liner materials shall be solid and shall closely approximate Coyote 498 shade, which complies with the AMS STD chip #20150. The exterior materials and components shall meet reflectance requirements specified in paragraph 3.8.2.1.

3.8.2.1 Spectral reflectance. The finished outershell cloth and all components used shall meet the spectral reflectance values (in percent) for the visible/near infrared wavelength range, 600 to 860 nanometers (nm) for the colors specified in table VII as applicable when tested as specified in 4.6.4.

TABLE VII. Spectral reflectance.

Wavelengths Coyote 498 Nanometers Minimum Maximum

600 8 20 620 8 20 640 8 22 660 8 24 680 12 24 700 12 34 720 16 42 740 22 46 760 30 50 780 34 54 800 36 56 820 38 58 840 38 58 860 40 60

3.9 Finished measurements. Finished dimensions shall be in accordance with table VIII, and measured in accordance with table IX. (see Figures 4 – 13).

TABLE I. Mitten liner finished dimensions (in inches).

A:

Back of hand width

B:

Full length

C:

Wrist cuff width

D:

Thumb length

E:

Thumb width

F: First finger length

G:

First finger width

H:

Finger mitt width

I:

Finger mitt length

J:

Fourchette width

Small 4 1/4 12 ½ 6 4 3 4 ¼ 1 ¼ 3 ¼ 4 ½ Medium 5 12

7/8 6 ¼ 4 1/8 3 4 ½ 1 ¼ 3 ½ 4 ¼ ½

Large 5 ¼ 13 ¼ 6 ½ 4 ¼ 3 4 ¾ 1 ½ 3 ¾ 4 ½ ½ X-Large 5 1/2 13

5/8 6 3/4 4 3/8 3 5 1 ½ 4 4 ¾ ½

¼ ¼ ¼ 1/8 1/8 1/8 1/8 1/8 1/8 1/8

TABLE IXII. Mitten liner methods of measurement.

Measurement name Measurement description Figure Number

A: Back of hand width

Measurement taken on back of hand. Measure parallel to mitten liner opening, beginning at side seam where leather meets nylon and ending at opposite side seam.

See Figure 4

B: Full length Measurement taken on back of hand beginning at seam where fourchette pieces meet, to bottom of liner hem staying perpendicular to liner hem.

See Figure 5

C: Wrist cuff width

Measurement taken on palm side along bottom edge of cuff. See Figure 6

D: Thumb length Measurement taken on back of hand from thumb tip following along fourchette and ending where fourchette meets side seam.

See Figure 7

E: Thumb width Measurement taken across back of thumb from seam to seam at thumb crotch staying parallel with thumb tip.

See Figure 8

F: First finger length

Measurement taken on back of hand at center of finger beginning at the seam where the leather meets the shell down to the bottom of the leather, where it meets the nylon.

See Figure 9

G: First finger width

Measurement taken across back of first finger, from seam to seam, parallel to fingertip, at finger crotch.

See Figure 10

H: Finger mitt width

Measurement taken across back of finger mitt width, from seam to seam, beginning at finger crotch to pinky side seam, parallel to fingertip.

See Figure 11

I: Finger mitt length

Measurement taken on back of hand beginning at seam where fourchette pieces meet, to finger crotch, staying perpendicular to liner hem.

See Figure 12

J: Fourchette width

Measurement taken at back of hand across fourchette, one inch up from thumb crotch seam, staying parallel to tip of thumb.

See Figure 13

3.10 Workmanship. The finished mitten liners shall be free from loose thread, foreign matter, and irregular defects that can adversely affect usage or durability. The finished items shall be uniform in quality, free from defects that adversely affect form, fit or function and those defects specified in table X.

4. VERIFICATION

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

a. First article inspection (see 4.3).

b. Conformance inspection (see 4.4).

4.2 Inspection conditions. Unless otherwise specified, excluded, amended, modified or qualified in this specification or applicable procurement documents (see 6.2), all inspections shall be performed in accordance with all the requirements of referenced documents.

4.3 First article inspection. A first article inspection shall consist of the examinations and tests specified in table IX. The first article inspection shall be unacceptable if any associated requirements are not met.

4.3.1 First article samples. Unless otherwise specified in the procurement document, first article samples shall be provided. The sample size will be specified in the procurement document. The sample unit shall be one pair of mitten liners and the lot size shall be expressed in pairs.

4.4 Conformance inspection. In accordance with 4.1, conformance inspection shall include the examination specified in 4.4.1. Sampling for inspection shall be performed in accordance with ASQ/ANSI Z1.4.

4.4.1 Conformance inspection samples. Sampling for conformance inspection shall be performed in accordance with ASQ/ANSI Z1.4 (see 6.2). The sample unit shall be one pair of mitten liners and the lot size shall be expressed in pairs.

4.4.2 In-process examination. Visual and dimensional examinations shall be made at any point or during any phase of the manufacturing process to determine whether construction details which cannot be easily examined in the finished product are in accordance with requirements specified in section 3. Materials and components, which contain a defect in accordance with table X shall be corrected or removed from production.

4.5 Component and end item inspection. In accordance with 4.1; and unless otherwise excluded, amended, modified, or qualified in this specification or applicable purchase document; components and end items shall be inspected in accordance with all the requirements of referenced specifications, drawings, and standards. In addition to testing provisions specified in referenced documents, components shall be tested for the characteristics specified in this specification. Tests shall be conducted with both the specimen and test apparatus under standard conditions as defined in the various ASTM, and AATCC test methods. All requirements are applicable to the sample unit. All test reports shall contain the individual values utilized in expressing final results. The lot shall be unacceptable if one or more sample units fail to meet any test requirement specified.

4.5.1 End item visual examination. The end item shall be visually examined for compliance to 3.5. The mitten liner shall be examined for defects in shade, design, material, construction, and workmanship, with defects classified in accordance with table X.

TABLE X. Defects.

EXAMINATION DEFECT MAJOR MINOR

Mitten Pairing Not matched and paired, right and left not same size, wide variation in appearance

Not tacked or joined together as specified. 201 Design Not as specified (incorrect material, pattern, etc.) 102

Poorly shaped 202 Shade Shade variation within a part or between parts 103

Unacceptable shade change as a result of water repellent treatment application

Any color not as specified. 105 Cleanness Spot, stain 203

Excessive thread ends not trimmed or removed 204 Shade stamp marking on outside 205 Odor, affecting appearance or serviceability. 206

Material and workmanship

Any component part omitted, distorted, full, tight, or twisted

Not functioning properly, or defective 107 Any part caught in any unrelated stitching. 108 Cloth Material:

Any hole, cut, tear, smash, burn, drill hole, run, thin place, dye streak, misweave or misknit, knot or slub affecting appearance or serviceability.

Leather:

Not specified color 110 Not full grain 111 Flesh side not smooth or contains area of coarse, loose fibers 112 Not clean, stain or foreign matter 207 Hard, boney, loose, spongy leather, hard scar 113 Cut or hole. 114 Seam (defect affecting appearance or serviceability) Not specified type 115 Puckered, distorted, pleated, wavy, twisted, irregular or open 116 Loose or tight stitch tension, broken or missing thread or stitch

Needle cutting, needle chew, visible mend 118 Edge or raised stitching sewn too close to edge resulting in damage to cloth

Seam allowance not as specified 120

Visible raw edge 121 Any visible perforations from removed stitches 208 Poorly assembled and affecting serviceability 122 Difference in overall length between front and back of mitten liner is more than 1/2 inch

Unwanted permanent fold, pleat, or crease in fabric or mitten, affecting appearance or serviceability

Labels Omitted, incorrect, illegible, not attached where specified 209 Bar-codes omitted, not readable by scanner 210 Human-readable interpretation (HRI) omitted or illegible 211 Bar code not visible on folded, packaged item; bar code attachment causes damage to the item.

Packaging Not packaged in accordance with the contract or purchase order

4.5.2 Dimensional examination. The end item shall be examined for conformance to the dimensions specified in table VIII.

4.5.3 Component testing. The components (see 3.4.2-3.4.5) shall be tested for characteristics listed in table XI. The methods of test shall be as specified in table XI. All test reports shall contain the individual values utilized in expressing the final results. The testing requirements and test sampling plan shall be as specified in the contract or purchase order.

TABLE XI. Component tests.

Characteristic Requirement Paragraph Test Method

Thickness, ounces Table I ASTM D1814 Moisture Vapor Transmission Rate, grams/square meter/24 hours (minimum) Table I ASTM D5052

Water Absorption Resistance, percent absorption (maximum) 1/ Table I 4.6.1 Oil and Stain Resistance, Grade (minimum) Table I AATCC TM118 Abrasion Resistance at 1000 cycles with CS-10 wheel and 500gram load

Table I ASTM D7255

Stiffness, degrees (maximum) 1/ Table I ASTM D2821 Stitch Tear, pounds (minimum) 1/ Table I ASTM D4705 Elongation at 25 pound load, percent, (maximum) 1/ Table I ASTM D2209 Shrink Temperature, degrees Celsius (minimum) Table I ASTM D6076 Veslic Rubbing Abrasion, 80 cycles 2/ Table I ISO 11640 Cold Crack Resistance, degrees Celsius Table I ASTM D1912 Finish Adhesion, Newtons/10 millimeters, dry & wet (minimum) Table I ASTM D6182 Flexibility and Adhesion of Finish at 30,000 cycles, degrees Fahrenheit

Table I ASTM D6182

Hexane Soluble Material, percent (maximum) 3/ Table I ASTM D3495 Chromic Oxide, percent (maximum) 3/ Table I ASTM D2807 pH value (minimum) Table I ASTM D2810 Total ash, percent (maximum) 3/ Table I ASTM D2617 Determination of Chromium (VI) Content, mg/kg Table I ISO 17075 Weight, ounces per square yard Table II ASTM D3776/D3776M Air Permeability, CFM (minimum) Table II ASTM D737 Thickness Table II ASTM D1777 Fabric Count, yarns per inch (minimum) Table II ASTM D3775 Puncture Propagation, kilogram-force (minimum) Table II ASTM D2582 Abrasion, 1000 grams H-18 Wheels (minimum) Table II ASTM D3884 Hydrostatic, centimeters (minimum) Table II AATCC TM127

Fiber Content 4/ Table III AATCC TM20 Weight, ounces per square yard Table III ASTM D3776/ASTM

D3776M Thickness, inches under 0.1 psi Table III ASTM D1777 Grade 5/ Table III ASTM D2130

FOOTNOTES:

1/ Eighty percent (80%) of tested samples required to pass.

2/ Value given using the AATCC Grey Scale.

3/ Calculated on moisture-free basis.

4/ Testing will be conducted on a scoured form. Failure of any specimen to meet the specified grade shall result in failure of the lot.

5/ Unless otherwise specified (see Error! Reference source not found.), a certificate of compliance shall be submitted and will be acceptable for the stated requirement

4.5.4 End item testing. The finished liners shall be tested for the characteristics listed in table XII according to the specified methods. All test reports shall contain the individual values utilized in expressing the final results. The testing requirement and test sampling plan shall be specified in the contract or purchase order.

TABLE XII. End item testing.

Clo (Dry thermal insulation) value 3.7 4.6.2

4.6 Examinations and tests.

4.6.1 Water Absorption Resistance Test. One 3-inch diameter specimen shall be tested from each 12 by 12 test area. Prior to testing, the specimen shall be allowed to reach moisture equilibrium in the standard conditions environment. A stainless steel 500 mL, 3-inch diameter, 5-inch long container with a rubber gasket and cover shall be used to test the specimen. The specimen shall first be weighed (to the nearest 0.01 g) and then shall be placed inside the cover with the flesh side of the specimen next to the inside of the cover. Place the rubber gasket inside the cover and against the grain surface of the leather specimen. Add 100 mL of distilled or deionized water at 23°C to the container. Secure the cover with the specimen and gasket to the container. Invert the container so the water is against the grain surface of the specimen. Place the inverted container on a flat surface and allow it to remain in the inverted position for 30 minutes. At the end of 30 minutes place the container upright, remove the cover, and place in on a flat surface. The inside of the cover shall face the flat surface. Tilt the cover so the outer edge of the bottom is raised 1 to 1-1/2 inches from the flat surface, and allow it to drain for 5 minutes. After 5 minutes immediately remove the specimen from the cover, hold the specimen by its edge and shake briskly once to remove any free moisture from the surface of the specimen. Immediately reweigh the specimen to the nearest 0.01 g, and calculate the percent water absorption as follows:

Percent water absorption = ((W2 – W1) x 100) /W1, where:

W1 = Original weight of conditioned specimen.

W2 = Weight of specimen after being subject to water.

4.6.2 Thermal insulation test. Three separate samples of the test handwear item shall be evaluated and the average value is reported. R values can be converted to the more familiar clo unit to allow ranking order of standard for procurement purposes. Test size shall be right hand, size Large. A life-sized biophysical model of the human hand that measures localized and total thermal resistance shall be used. Insulation values for the total hand model and its 7 individual regions are calculated by an internal program during 30 minutes of steady state data collection. The ambient temperature shall be maintained at 5.0 (+0.5)°C and the surface of the hand model is controlled at 35 °C.

The relative humidity shall be 50% and wind speed shall be maintained at 0.4 meters/second. Total thermal resistance (R) to heat exchange is calculated in the test conditions in the table below and using:

R= (SA* delta T)/Power, where:

R is the thermal resistance, m2 °C/Watt SA = total surface area of 7 regional segments, m2 Delta T = temperature gradient between the hand model surface and ambient air temperature, °C.

P = Total power input, Watts.

If required, mittens submitted will be tested by the Government. Testing at alternate facilities shall require side-by-side comparison due to chamber wind speed differences that cannot be controlled that will affect the total measured values.

4.6.3 Visual shade matching. Shade will be assessed using AATCC EP9, Option C (see 6.4), with sources simulating artificial daylight D75 illuminant with a color temperature of 7500K (±200) illumination of 100 (±20) foot candles, and shall be a good approximation to the standard sample under incandescent A illuminant with a color temperature of 2856K (±200).

4.6.4 Spectral reflectance test. Spectral reflectance data shall be obtained from 600 to 860 nanometer (nm) at 20nm intervals on a spectrophotometer relative to the polytetrafluoroethylene (PTFE) family of compounds, the preferred white standard. Other white reference materials may be used provided they are calibrated to absolute white or vitrolite tiles. The spectral band width shall be less than 20 nm at 860 nm. Reflectance measurements shall be made by either the monochromatic or polychromatic mode of operation. When the polychromatic mode of operation is used, the spectrophotometer shall operate with the specimen diffusely illuminated with the full emission of a continuous source that simulates in the visible spectrum either CIE Source A or CIE Source D65.

The specimen shall be viewed at an angle of no greater than 10º from normal, the specular component included.

Measurements shall be taken on a minimum of two (2) different areas and the data averaged. The specimen shall be measured as a single layer backed with three (3) layers of the same fabric and shade. Specimens shall be oriented in different directions during testing. When possible, the specimens tested shall not contain the same warp and filling yarns. The diameter for standard aperture size used in the color measurement device shall be the largest possible for each color. The measured areas should be at least 6 inches away from the selvage. Photometric accuracy of the spectrophotometer shall be within one (1) percent and wavelength accuracy within two (2) nm.

Any color having spectral reflectance values falling outside the limits at four (4) or more of the wavelengths specified shall be considered a test failure.

5. PACKAGING

5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order (see 6.1). When packaging of materiel 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.)

6.1 Acquisition requirements. Acquisition documents should specify the following:

a. Title, number and date of this document, including any amendments.

b. Sizes required (see 1.2).

c. The specific issue of individual documents referenced (see 2.2).

d. Applicable Government patterns and drawings, including revisions.

e. When first article sample is required (see 4.3 and 6.2).

f. Number of first article inspection samples (see 4.3.1)

g. Conformance inspection acceptance quality limits (AQL)

h. Packaging requirements (see 5.1)

6.2 First article. When first article inspection is required, the contracting officer should provide specific guidance to offerors whether the item(s) should be first article sample, a first production item, or a standard production item from the contractor’s current inventory, and the number of items to be tested as specified in 4.3. Invitations for bids should provide that the Government reserves the right to waive the requirement for samples for first article inspection to those bidders offering a product which has been previously acquired or tested by the Government and that bidders offering such products, who wish to rely on such production or test, must furnish evidence with the bid that prior Government approval is presently appropriate for pending contract. Bidders should not alternate submit bids unless specifically requested to do so in the solicitation.

6.3 Standard sample. For standard samples, address the procuring activity issuing the invitation for bids or request for proposal.

6.4 Visual shade matching. In 2019, Option A of AATCC Evaluation Procedure 9, Visual Assessment of Color Difference of Textiles was changed to Option C. NOTE: In case of confusion, the viewing geometry should be “The specimen plane and illumination source will be parallel to each other and aligned so that the light flux is incident at the center of the specimen plane, which is set at a 35 (±5) degree angle relative to the horizontal. The observer will view the specimens at a 90 degree angle, relative to the plane of the specimens”.

6.5 Sources of supply.

6.5.1 Basic shell material. 70 denier nylon ripstop (3.4.1) has been shown to meet the requirements of this specification. A known source of this material is:

Brookwood Companies, Inc.

485 Madison Avenue, Suite 500 New York, NY 10022 Phone: 212-551-0100 Fax: 646-472-0294 https://www.brookwoodcos.com/

6.5.2 Grip, fingertips. Style #700554-700 (3.4.3) has been shown to meet the requirements of this specification. A known source of this material is:

SuperFabric 570 Hale Ave N Oakdale, MN 55128 651-730-6203

6.5.3 Lining, inside cuff hem and trigger finger. 100% Wool Napped French Terry, Style # 2195-S (3.4.4) has been shown to meet the requirements of this specification. A known source of this material is:

Draper Knitting Draper Knitting Company 28 Draper Lane Canton, MA 02021-1693 Phone: 1-800-808-7707 http://www.draperknitting.com/ https://www.brookwoodcos.com/

6.5.4 Lining, front of hand, back of hand, and thumb. Napped wool lay-in, Style #2162 (3.4.5) has been shown to meet the requirements of this specification. A known source of this material is:

Draper Knitting Draper Knitting Company 28 Draper Lane Canton, MA 02021-1693 Phone: 1-800-808-7707

6.5.5 Insulation. Known sources that meet the requirements of the material specified in 3.4.6 are:

3M™ Thinsulate™ Insulation Type C.

3M 3M Center St. Paul, MN 55144-1000 1-888-364-3577 https://www.3m.com/

PrimaLoft Silver Insulation.

PrimaLoft Ph: (518) 213-9073 https://www.primaloft.com

Climasheild.

641 Northpark Drive Clinton, TN 37716 Ph: (865) 463-6184 Fax: (865) 463-6188 https://climashield.com

6.5.6 Balance software. A source of a suitable automation software for a balance. (4.6.3) is:

Labtronics Inc.

Tel: (519) 767-1061 Fax: (519) 836-4431 www.labtronics.com

6.5.7 Subject term (key word) listing.

Cold-weather Handwear Liner Nylon

Mitten Size Label Information

Small

NSN: TBD

Medium

NSN: TBD

Large

NSN: TBD

X-Large

NSN: TBD

https://www.3m.com/ http://www.labtronics.com/

FIGURE 1. Back of hand view.

FIGURE 2. Palm view.

FIGURE 3. Cuff detail.

FIGURE 4. Measurement A.

FIGURE 5. Measurement B.

FIGURE 6. Measurement C.

FIGURE 7. Measurement D.

FIGURE 8. Measurement E.

FIGURE 9. Measurement F.

FIGURE 10. Measurement G.

FIGURE 11. Measurement H.

FIGURE 12. Measurement I.

FIGURE 13. Measurement J.

CONCLUDING MATERIAL

Custodians: Preparing activity:

Navy – MC Navy – MC

Review activities:

Army Air Force

NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https://assist.dla.mil.

https://assist.dla.mil/