MC-PD-24-002 CWCG PD (FINAL DRAFT).pdf

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AMSC N/A FSC 8440

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

INCH-POUND

MC-PD-24-002

1 August 2024

DETAIL SPECIFICATION

GLOVE, CONTACT, COLD WEATHER

This specification is approved for use by all Departments and Agencies of the Department of Defense.

1. SCOPE

1.1 Scope. This specification covers the Cold Weather Contact Gloves (CWCG).

1.2 Classification. The gloves are available in one type and in the following sizes, as specified in the contract or order (see 6.2). The gloves are matched in pairs, consisting of a left and a right glove of the same size.

1.2.1 Sizes.

Small (S) Small-Wide (S-W)

Medium (M) Medium-Wide (M-W)

Large (L) Large-Wide (L-W)

Extra Large (XL) Extra Large-Wide (XL-W)

Extra-Extra Large (XXL) Extra-Extra Large-Wide (XXL-W)

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 3 and 4 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.

COMMERCIAL ITEM DESCRIPTIONS

A-A-55126 - Fastener Tapes, Hook and Loop, Synthetic

A-A-59826 - Thread, Nylon mailto:USMC_STDZ@usmc.mil

DEPARTMENT OF DEFENSE SPECIFICATIONS

MIL-DTL-5038 - Tape, Textile and Webbing, Textile, Reinforcing, Nylon

MIL-DTL-32075 - Label: For Clothing, Equipage, and Tentage, (General Use)

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

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 EP1 - Gray Scale for Color Change

AATCC EP9 - Visual Assessment of Color Difference of Textiles

AATCC TM22 - Water Repellency: Spray Test

AATCC TM127 - Test Method for Water Resistance: Hydrostatic Pressure

AATCC TM76 - Test Method for Electrical Surface Resistivity of Fabrics

AATCC TM79 - Test Method for Absorbency of Textiles

AATCC TM135 - Dimensional Changes of Fabric after Home Laundering

AATCC TM150 - Test Method for Dimensional Changes of Garments after Home Laundering

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

ASTM INTERNATIONAL

ASTM D1610 - Standard Practice for Conditioning Leather and Leather Products for

Testing

ASTM D1777 - Standard Test Method for Thickness of Textile Materials

ASTM F1358 - Standard Test Method for Effects of Flame Impingement on Materials Used in Protective Clothing Not Designated Primarily for Flame Resistance

ASTM F1790/F1790M - Standard Test Method for Measuring Cut Resistance of Materials used in Protective Clothing

ASTM D1814 - Standard Test Method for Measuring Thickness of Leather Units

ASTM D1912

ASTM D2096

Standard Test Method for Cold-Crack Resistance of Upholstery Leather

Standard Test Method for Colorfastness and Transfer of Color in the

Washing of Leather

ASTM D2209

ASTM D2322

Standard Test Method for Tensile Strength of Leather

Standard Test Method for Resistance of Shoe Upper Leather to Artificial

Perspiration https://quicksearch.dla.mil/ file://///peraton.com/fs/programs/alexva/alx_projects/Systech/Specs%20&%20Stds%20Processing%20-%20Elaine/Marine%20Corps%20Specs%20&%20Stds/MC029%20(Glove,%20Intermediate%20Cold%20Weather)%20-%20DF/Phase%202/www.aatcc.org/ file://///peraton.com/fs/programs/alexva/alx_projects/Systech/Specs%20&%20Stds%20Processing%20-%20Elaine/Marine%20Corps%20Specs%20&%20Stds/MC029%20(Glove,%20Intermediate%20Cold%20Weather)%20-%20DF/Phase%202/www.asq.org

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 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 D3776 - Standard Test Methods for Mass Per Unit Area (Weight) of Fabric

ASTM D4705 - Standard Test Method for Stitch Tear of Leather, Double Hole

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

(Grab Test)

ASTM D5052 - Standard Test Method for Permeability of Leather to Water Vapor

ASTM D6076 - Standard Test Method for Shrinkage Temperature of Leather

ASTM D6182 - Standard Test Method for Flexibility and Adhesion of Finish on Leather

ASTM D6193 - Standard Practice for Stitches and Seams

ASTM D6614 - Standard Test Method for Stretch Properties of Textile Fabrics – Constant Rate of

Extension Method

ASTM E96 - Standard test Methods for Gravimetric Determination of Water Vapor Transmission

Rate of Materials

ASTM F3426 - Standard Test Method for Measuring the Thermal Insulation of Clothing Items

Using Heated Manikin Body Forms

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

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO)

ISO 11640 - Leather – Tests for Colour Fastness – Colour Fastness to Cycles of to-and-fro

Rubbing

ISO 17075-1 - Leather – Chemical determination of chromium(VI) content in leather – Part 1:

Colorimetric Method

(Copies of these documents are available online at 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 6.2), a sample shall be subjected to first article inspection in accordance with 4.2.

http://www.astm.org/ file://///peraton.com/fs/programs/alexva/alx_projects/Systech/Specs%20&%20Stds%20Processing%20-%20Elaine/Marine%20Corps%20Specs%20&%20Stds/MC029%20(Glove,%20Intermediate%20Cold%20Weather)%20-%20DF/Phase%202/www.iso.org

3.1.2 Conformance inspection. When specified (see 6.2), a sample shall be subjected to a conformance inspection in accordance with 4.3.

3.2 Standard sample. The finished gloves shall match the standard samples (see 6.4) 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 Design. The Cold Weather Contact Glove (CWCG) is a standard five-finger, left and right hand, design (see figures 1 and 2) with fingertip leather providing wearers the ability to operate touchscreen devices without the need to remove the glove. The glove consists of two materials: a three-layer laminate used on the back of hand and fourchettes with leather used for the palm and other design features. The laminate consists of three layers: a stretch woven, nylon /spandex face that is durable water repellent treated, backed by a highly water and wind resistant layer, and an inner layer consisting of a modacrylic/rayon/spandex blend conforming to 3.5.1. The goatskin leather used on the palm and design features is durable water resistant treated and conforms to 3.5.2. The leather wraps around at the fingertips, meeting the back of hand material to enhance the touchscreen capability of the leather. The fingertips are constructed in a way that results in an arched curve around the palm side of the fingertips to create fullness (see 3.7.1 and Figure 3) The glove has a leather reinforcement patch over the knuckles for added protection. The patch is stitched into the side seam, fourth finger (pinky) side, with a double row of topstitching along the edge as an attachment method for the remainder of the patch. The cuff extends past the wrist, with an elasticized back of wrist, and a leather wrist strap to be used as an adjustment feature. The wrist strap is sewn into the seam where the laminate material meets the leather, thumb side, and the strap pulls to the back of the hand. The strap is secured using hook and loop, with hook placement on the strap, and loop placement on the wrist portion of the glove. The outside of the glove has a feature at the side seam that enables the gloves to be clipped together as a pair when not in use

(see 3.5.5). The glove has a label to identify the item, its size, and use and care. (See Figures 1 & 2).

3.4.1 Figures. Figures 1 & 2 are furnished for informational purposes only. To the extent an inconsistency exists between the written specification and the figures, the written specification shall govern.

3.5 Materials and components. Vapor barrier components are not permitted in the glove construction given the need for breathability and quicker dry time.

3.5.1 Basic material. The basic material utilized for the face side of the fabric shall be made from a nylon

/ spandex blend yarn in a plain weave stretch construction with a water repellent finish applied to the fabric.

The material utilized for the back side of the fabric shall be constructed from a modacrylic / lyocell / spandex blend fabric in a knitted terry velour construction. The two layers shall be laminated with a film in between that provides high water and wind resistance. The finished cloth shall meet the requirements specified in table

I. (see 6.6.1).

TABLE I. Basic material requirements.

Characteristic Requirement

Fabric - Outer Layer

Fiber, percent (±3) nylon 86 spandex 14

Fabric - Inner Layer

Fiber, percent (±3) modacrylic 83 rayon 15 spandex 2

Fabric - Laminate

Weight, ounces per square yard 11.5 - 13

Thickness, inches 0.058 - 0.064

Martindale Pilling, face (10,000 Cycles), rating 5, No pilling

Spray rating, face, (minimum)

Initial 100, 100, 90

After 5 launderings 1/ 80, 80, 75

Hydrostatic Pressure, face, mbar/second, (minimum)

Initial 225

After 5 launderings 1/ 200

Absorbency, face, seconds, (minimum)

Initial 60

After 5 launderings 1/ 60

Moisture Vapor Transmission Rate, grams/meter²/24hour, upright (minimum)

Break Strength, pounds (minimum)

Warp 150

Fill 110

Dimensional Stability, percent, After 5 launderings 1/

Warp ± 5

Fill ± 3

TABLE I. Basic material requirements. Continued

Characteristic Requirement

Fabric Stretch, percent (minimum)

Warp: 25

Fill: 25

Vertical Flame No melt/no drip

1/ 5th laundering cycle uses water only (no detergent) to remove any residual detergent that could affect result.

3.5.2 Leather. The leather used to construct the palm, wrap around finger tips, knuckle patch, and wrist strap shall be a 1.3 – 2.5 ounce full grain goatskin conforming to the requirements in table II when tested as specified in 4.4.. The leather shall be drum-dyed, struck through from grain to flesh. The leather shall be soft and pliable. Application of a finish to the grain surface shall be prohibited. If necessary, the flesh side of the leather shall be dry buffed and shaved to obtain a smooth, clean surface and uniform thickness in all areas. The leather shall be treated with water resistant compounds and shall provide capacitive capabilities. The color of the finished leather shall be a good match to Coyote 498 (see 6.5.2).

THIS SECTION INTENTIONALLY LEFT BLANK

TABLE II. Leather characteristics and requirements.

Characteristic Requirement

Material identification Goat / kidskin

Thickness, ounces 1.3 – 2.5

Moisture vapor transmission rate (MVTR), grams per square meter in

24 hours (minimum)

Water absorption resistance, percent absorption (maximum) 1/ 15

Stiffness value, degrees (maximum) 1/ 60

Stitch tear strength, pounds (minimum) 1/ 12

Elongation, percent, (minimum) 1/ 25

Area stability to laundering, percent (maximum) 20

Perspiration, percent (maximum) 15

Shrinkage, percent, (maximum), temperatures up to 92°C none

Cold crack resistance, visual after exposure at -30 ℃ No cracking

Flexibility and adhesion of finish at 30,000 cycles after exposure at -20 ℉ No cracking or delamination

Chloroform soluble material, percent (maximum) 2/ 25

Chromic oxide, percent (minimum) 2/ 2.5

Total ash, percent (maximum) 2/ 9

Hexavalent Chromium, ppm (maximum) 10

Resistivity, ohms per square

Grain: 103 - 106

Flesh: 103 - 109

FOOTNOTES:

1/ Passing values in 80 percent of tested samples required to pass.

2/ Calculated on moisture-free basis.

3.5.3 Elastic. The elastic shall be attached at the back of the wrist to gather for a closer fit. It shall be sewn to the inside of the glove and secured at the ends using bartacks (see 3.7.2.1). Elastic shall be 3/4 inch in width, cut length approximately 2-5/8 inches, and conform to the requirements of type I, class 1 of MIL-W-5664

(see Figure 1).

3.5.4 Thread. The thread for all construction seams shall be size letter E, Tex 70, bonded, non-wicking, water resistant, conforming to A-A-59826, type II, class B. The color shall be Coyote 498 (see 6.5.2).

3.5.5 Clasp. A clasp (see 6.6.2 and Figures 1 & 2) shall be attached on the fourth finger (pinky) side of the left and right glove at the side seam to allow them to be clipped together as a pair. For consistency, the female portion of the clasp should be attached to the right-hand glove and the male portion should be attached to the left-hand glove. Nylon tape conforming to 3.5.5.1 shall be used for attachment of the clasp. The color shall be Coyote 498

(see 6.5.2); black may be used as an alternate

3.5.5.1 Nylon tape. The nylon tape used to secure the clasp at the side seam (see 3.5.5 and Figures 1 & 2) shall be nylon, 3/8 inch in width, cut length approximately 1-3/4 inches, and conform to type III of MIL--DTL-5038. The color shall be Coyote 498 (see 6.5.2); black may be used as an alternate.

3.5.6 Hook and loop tape. Hook and loop tape meeting the requirements of A-A-55126, Type II, Class 1, Style

A shall be attached to the glove and wrist strap for adjustment. The hook tape piece shall be die cut (see 3.6.2) and attached to the underside of the wrist strap, within 1/16 inch of the end, in accordance with the markings on the patterns. The loop tape shall be die cut (see 3.6.2) and attached to the back of the glove in accordance with the markings on the pattern.

3.5.6 Labels. Each glove 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 glove. The fastness to laundering requirements of MIL-DTL-32075 shall apply. The labels shall identify the item, boldly specify the size, and provide use and care instructions.

3.5.6.1 Identification-size label. The label shall be located inside the gloves on the back of the wrist of both gloves in a pair. Unless otherwise specified in the order or contract, the full written size shall be used on the label rather than the abbreviation. The combination identification-size label shall conform to type VI, class 4, MIL-DTL-32075 and shall include the following information:

GLOVES, CONTACT, COLD WEATHER

SIZE: MEDIUM (EXAMPLE)

CONTRACT NO.:

CONTRACTOR’S NAME:

FIBER CONTENT:

3.5.6.2 Instruction label. The instruction label for the gloves shall conform to type VI, class 3 of

MIL-DTL-32075 and shall include the following information:

1. Machine wash on regular cycle in cold water.

2. Do not bleach.

3. Drip dry.

4. Do not iron.

5. Do not dry-clean.

DO NOT REMOVE THIS LABEL

3.5.6.3 Combination identification-size-instruction label. As an alternative to the separate labels in 3.5.6.1 and

3.5.6.2, a combination identification-size-instruction label may be used conforming to type VI, class 14 of

MIL-DTL-32075. All information in 3.5.6.1 and 3.5.6.2 shall be included in the combination label.

3.5.6.4 Label/tag. Each glove shall have an individual barcode 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 National Stock

Number (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.

3.6 Patterns. Standard patterns, providing a seam allowance of 1/8 inch for all seams, will be furnished by the

Government. The list of pattern parts and computer nomenclature in table III is provided to ensure 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 shall be identical to the Government patterns, except that additional notching, if needed, to facilitate manufacture, may be added. 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 the end items. Pattern pieces can be cut using a die or laser for precision due to difficulty with visibility of external notches when machine cutting. With machine cutting, notches need to be made very wide to not be eliminated by the machine blade. Shaping of the fingers / fingertips is reliant on notches and a die or laser cut provides for more consistency.

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 III.

TABLE III. Pattern parts.

Material Nomenclature Cut Parts 1/

Basic material Back of hand 1 left, 1 right

Fourchette 1 1 left, 1 right

Fourchette 2 1 left, 1 right

Fourchette 3 1 left, 1 right

Outer thumb 1 left, 1 right

Leather 2/ Fingertip 8

Inner thumb 1 left, 1 right

Knuckle reinforcement 1 left, 1 right

Palm 1 left, 1 right

Wrist strap 2

Template Hook 0

Loop 0

FOOTNOTE:

1/ Pieces listed as left and right shall be cut face-to-face to create left and right cut parts.

2/ Leather shall be cut in a manner that causes the appropriate side to be on the outside of the liner after assembly. This may require pieces to be flipped in the cutting software.

3.6.2 Hook and loop tape dies. The hook and loop pieces shall be cut to match (±1/16 inch) the templates provided in table III.

3.7 Construction. Assembled gloves (referred to as “end item” in this specification) shall be as specified in 3.4 through 3.6, to ensure environmental protection, comfort, and durability in garrison use, combat, and field operations. The end item construction and appearance shall conform to the requirements of this document, end item characteristics specified in table IV, and the finished dimensions as specified in 3.9.2, to maintain item configuration and compliance to end item and component performance tests (see Error! Reference source not found. and 4.5).

3.7.1 Finger construction. The fingertips shall be constructed in a way that results in an arched curve around the palm side of the fingertips to create fullness (see figure 3). The palm side of each finger shall be eased onto the back of hand side of each finger creating volume on the palm side. For ease of construction, front and back pieces may first be tacked at fingertips according to notches on pattern prior to easing remaining sections of each finger.

3.7.2 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 V. All material edges shall not ravel.

Edges may be turned-in, turned-under, or serged to prevent raveling. Thread ends shall be trimmed to a length no greater than 1/4 inch.

3.7.2.1 Needle. Needle size used in glove construction is based off thread type and size required in 3.5.4.

Needle size shall range from 100/16 to 110/18 to mitigate thread raveling out from large holes created by needle punctures.

TABLE V. Stitch types and stitches per inch.

Operation Stitch Type Stitches per Inch

Single needle stitch, or straight stitch 301 10 to 12

Topstitch (leather) 301 7 to 10

Baste 301 or 101 10 to 12

Bartack - 26 – 30 per tack

3.7.3 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 1/4 inch. Thread breaks (all stitch types) shall be secured by stitching back from the break not less than 1/2 inch.

3.8 Color matching.

3.8.1 Visual shade matching. The color and appearance of the materials and components shall match the shade requirements when tested in accordance with 4.5.4.

3.8.2 Color. The shade of exterior glove materials shall be solid and shall match Coyote 498 (see 6.5.2). The exterior materials and components shall meet the reflectance requirements specified in paragraph 3.8.2.1.

3.8.2.1 Spectral reflectance. The finished outer cloth and all components used shall meet the spectral reflectance values (in percent) for the visible/near infrared wavelength range, 600 to 860 nanometers for the colors specified in table VI, as applicable, when tested as specified in 4.5.

TABLE VI. Spectral reflectance.

Wavelengths

(nanometers)

Coyote 498

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 End item requirements. The finished glove shall meet or exceed all requirements in 3.9.1 and 3.9.2

3.9.1 Finished glove insulation. The finished glove shall provide a minimum clo value of 0.65 when tested in accordance with 4.5.2.

3.9.2 Finished measurements. Finished dimensions shall be in accordance with table VI and measured in accordance with table VII. Size abbreviations are in accordance with 1.2.1.

TABLE VI. Glove finished dimensions (in inches).

Size A:

Full

Length

B: Back of Hand

Width

C:

Gauntlet

Width

D:

Thumb

Length

E:

First

Finger

Width

F:

Second

Finger

Width

G:

Third

Finger

Width

H:

Fourth

Finger

Width

I:

Thumb

Width

S 9-5/8 4-1/4 4-1/2 3-3/8 1 1 1 7/8 2 3/4

S-W 9-5/8 4-3/8 4-5/8 3-3/8 1-1/8 1-1/8 1-1/8 1 2-3/4

M 10-1/8 4-1/2 4-3/4 3-5/8 1 1 1 7/8 3

M-W 10-1/8 4-5/8 4-7/8 3-5/8 1-1/8 1-1/8 1-1/8 1 3

L 10-5/8 4-3/4 5 3-7/8 1-1/8 1 1 1 3-1/4

L-W 10-5/8 4-7/8 5-1/8 3-7/8 1-1/4 1-1/8 1- 1/8 1-1/8 3-1/4

XL 11-1/8 5 5-1/4 4-1/8 1-1/8 1-1/8 1-1/8 1 3-1/2

XL-W 11-1/8 5-1/8 5- 3/8 4-1/8 1-1/4 1-1/4 1- 1/4 1-1/8 3-1/2

XXL 11-5/8 5-1/4 5-1/2 4-5/8 1-1/4 1-1/8 1-1/8 1 3-3/4

XXL-W 11-5/8 5-3/8 5-5/8 4-5/8 1-3/8 1-1/4 1-1/4 1-1/8 3-3/4

Tolerance: ±1/4 ±1/4 ±1/4 ±1/4 ±1/8 ±1/8 ±1/8 ±1/8 ±1/8

THIS SECTION INTENTIONALLY LEFT BLANK

TABLE VII. Glove methods of measurement.

Measurement Name Measurement Description Figure

A: Full length Measurement taken on the back of the hand with wrist strap not engaged. Measure straight down

(perpendicular to gauntlet) with glove laid flat from the tip of the second finger to the bottom of the gauntlet.

B: Hand width Measurement taken on the back of the hand with wrist strap not engaged. Measure straight across, parallel to gauntlet, with top of tape measure at highest point of knuckle patch measuring from edge to edge with the glove laid flat.

C: Gauntlet width Measurement taken on the palm side with wrist strap not engaged. Measure along the edge with the cuff flattened.

D: Thumb length Measurement taken on the palm side beginning at center of thumb tip, to bottom of thumb intersection.

E: First finger width Measurement taken on palm side 3/4 inch up from raw edge of leather on the first finger (index finger).

Measure across width of fingertip edge to edge with

F: Second finger width Measurement taken on palm side 3/4 inch up from raw edge of leather on the second finger (middle finger).

Measure across width of fingertip edge to edge with

G: Third finger width Measurement taken on palm side 3/4 inch up from raw edge of leather on the third finger (ring finger). Measure across width of fingertip edge to edge with glove laid flat.

TABLE VII. Glove methods of measurement. Continued

Measurement Name Measurement Description Figure

H: Fourth finger width Measurement taken on palm side 3/4 inch up from raw edge of leather on the fourth finger (pinky). Measure across width of fingertip edge to edge with glove laid flat.

I: Thumb width Measurement taken on palm side along seam joining leather palm to thumb, beginning and ending where leather meets basic material.

3.10 Pairing. A left and a right glove of the same size and matching color shall be clipped together as a pair.

3.11 Workmanship. The finished gloves 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 the defects specified in 4.4.1. The occurrence of defects shall not exceed the established acceptance quality limits (AQLs) (see 6.2) and shall not adversely affect the serviceability, appearance, and uniformity of the product.

4. VERIFICATION

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

a. First article inspection (see 4.2).

b. Conformance inspection (see 4.3).

4.2 First article inspection. A first article inspection shall be performed on the gloves when a first article sample is required (see 6.2). This inspection shall consist of the examinations and tests specified in Error! Reference source not found.. The first article inspection shall be considered a failure, and the first article sample shall be rejected, if any associated requirements are not met.

4.2.1 First article samples. The sample unit shall be one pair of gloves and the lot size shall be expressed in pairs. The first article sample size shall be as specified in the procurement document (see 6.2).

4.3 Conformance inspection. Conformance inspection shall include the examination specified in 4.3.1.

4.3.1 Conformance inspection samples. Sampling for conformance inspection shall be performed in accordance with ASQ/ANSI Z1.4 and with AQLs as specified in the contract or order (see 6.2). The sample unit shall be one pair of gloves and the lot size shall be expressed in pairs.

4.3.2 In-process examination. Visual and dimensional examinations shall be made at any point or during any phase of the manufacturing process to determine whether the construction details that cannot be easily examined in the finished product are in accordance with requirements specified in section 3. Materials and components that contain a defect in accordance with 4.4.1 shall be corrected or removed from production.

4.4 Component and end item inspection. In accordance with 4.1 and unless otherwise excluded, amended, or modified in this specification or applicable purchase document (see 6.2), components and end items shall be inspected in accordance with all the requirements of referenced documents. All requirements are applicable to the sample unit. Test reports, when prescribed in the associated test method, should contain the individual values utilized in expressing final results. The lot shall be rejected if one or more sample units fail to meet any test requirement specified. Sampling for components shall be in accordance with the applicable test plan, or as cited in the contract or order (see 6.2).

4.4.1 End item visual examination. The gloves shall be visually examined for defects in shade, design, material, construction, and workmanship, with defects classified in accordance with table VIII. Defects shall not exceed the AQL specified in the contract or order (see 6.2).

TABLE VIII. Defects.

Examination Defect Major Minor

Glove pairing Not matched and paired, right and left not same size, or wide variation in appearance not otherwise specified in this table

Design Not as specified 102

Poorly shaped 201

Buckles or hardware positioned incorrectly 103

Shade Shade variation within a part or between parts 202

Any color not as specified 104

Cleanness Spot or stain that cannot be cleaned with a moist cloth 203

More than three thread ends not trimmed or removed (see 3.7.2) 204

Shade stamp marking on outside 205

Odor, affecting serviceability 206

Material and workmanship

Any component part omitted, distorted, full, tight, or twisted 105

Any part caught in any unrelated stitching 106

Material or leather:

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

Leather:

Not full grain 108

Flesh side not smooth or contains area of coarse, loose fibers 109

Not clean, stained, or foreign matter 207

Hard, boney, loose, spongy leather, or hard scar 110

Seam (defect affecting appearance or serviceability):

Not specified type 111

Puckered, distorted, pleated, wavy, twisted, irregular or open 112

Loose or tight stitch tension, broken or missing thread or stitch 113

Needle cutting, needle chew, visible mend 114

Edge or raised stitching sewn too close to edge resulting in damage to materials

Seam allowance not as specified 116

Material and workmanship

(continued)

Visible raw edge 117

Any visible perforations from removed stitches 208

Bartacks missing, insecure, misplaced, not specified size; stitches loose or broken; or bartack not serving intended purpose

Front and back of glove uneven by more than 1/2 inch at hem 119

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

TABLE VIII. Defects. Continued

Examination Defect Major Minor

Labels Omitted, incorrect, illegible, or not attached where specified 209

Barcodes omitted or not readable by scanner 210

Human-readable interpretation omitted or illegible 211

Barcode not visible on folded, packaged item; barcode attachment causes damage to the item

Packaging Not packaged in accordance with the contract or purchase order (see 5.1) 213

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

4.4.3 Basic material testing. The basic materials shall be tested as specified in table IX to verify that it meets the requirements in table I.

TABLE IX. Basic material testing.

Characteristic Requirement

Fabric - Outer Layer

Fiber AATCC TM20A

Fabric - Inner Layer

Fiber AATCC TM20A

Fabric - Laminate

Weight ASTM D3776/D3776M

Thickness ASTM D1777

Martindale Pilling, face (10,000 Cycles) ASTM D4970/D4970M

Spray rating, face AATCC TM22

Hydrostatic Pressure, face AATCC TM127

Absorbency, face 4.5.1

Moisture Vapor Transmission Rate ASTM E96

Break Strength ASTM D5034

Dimensional Stability AATCC TM135, 3, III, Aiii

Fabric Stretch ASTM D6614

Vertical Flame (folded edge method) ASTM F1358 1/

1/ Folded edge method; sample turned inside out during testing with only inner layer (modacrylic/rayon/spandex) exposed to the flame. Alternate test procedure – 12 second flame exposure only.

4.4.4 Leather testing. The leather (see 1/ 5th laundering cycle uses water only (no detergent) to remove any residual detergent that could affect result.

3.5.2) shall be tested for the characteristics listed in table X. The methods of test shall be as specified in table X for the requirements in table II. Test reports, when prescribed in the associated test method, evaluation procedure, or other cited guidance should 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 (see 5.1 and 6.2).

TABLE X. Leather tests.

Characteristic Test Method

Material identification Visual

Thickness ASTM D1814

MVTR ASTM D5052

Water absorption resistance see 4.5.1

Abrasion resistance ASTM D7255

Stiffness ASTM D2821

Stitch tear ASTM D4705

Elongation at 25-pound load ASTM D2209

Area stability to laundering ASTM D2096

Perspiration ASTM D2322

Shrinkage percent ASTM D6076

Veslic rubbing abrasion ISO 11640

Cold crack resistance ASTM D1912

ISO 11644

Flexibility and adhesion of finish ASTM D6182

Chloroform soluble material ASTM D3495

Chromic oxide ASTM D2807

Total ash, percent ASTM D2617

Hexavalent chromium ISO 17075-1

4.5 Examinations and tests.

4.5.1 Water absorption resistance test. One 3-inch diameter specimen shall be tested from each 12- by 12-inch test area. Prior to testing, the specimen shall be allowed to reach moisture equilibrium in a standard atmospheric conditions environment, as specified in ASTM D1610. A stainless steel 500 milliliter, 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 gram) and then shall be placed inside the cover with the flesh side of the specimen next to the inside of the cover. The rubber gasket shall then be placed inside the cover and against the grain surface of the leather specimen. One-hundred milliliters of distilled or deionized water at 23 °C shall then be added to the container. The cover with the specimen and gasket shall then be secured to the container. The container shall then be inverted so the water is against the grain surface of the specimen. The inverted container shall be placed on a flat surface and allow it to remain in the inverted position for 30 minutes. At the end of 30 minutes, the container shall be placed upright, and the cover shall be removed and placed on a flat surface. The inside of the cover shall face the flat surface. The cover shall be tilted so the outer edge of the bottom is raised 1 to 1-1/2 inches from the flat surface and allowed to drain for 5 minutes. After 5 minutes, the specimen shall be removed from the cover, held by its edge, and shaken briskly once to remove any free moisture from the surface of the specimen. The specimen shall be immediately reweighed to the nearest 0.01 gram; the percent water absorption shall be calculated as follows:

𝑃𝑒𝑟𝑐𝑒𝑛𝑡 𝑤𝑎𝑡𝑒𝑟 𝑎𝑏𝑠𝑜𝑟𝑝𝑡𝑖𝑜𝑛 = (𝑊2 − 𝑊1) × 100

𝑊1

Where:

W1 = Original weight of conditioned specimen

W2 = Weight of specimen after being subject to water

4.5.2 Thermal insulation test. Three separate samples of the test handwear shall be evaluated in accordance with ASTM F3426 and the average value shall be reported. Total thermal resistance (R) values can be converted to the more familiar clo unit, by multiplying the R value by 6.45, 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 eight individual regions are calculated by an internal program during 30 minutes of steady state data collection. The ambient temperature shall be maintained at 5±0.5 °C and the surface of the hand model is controlled at 35±0.5 °C.

The relative humidity shall be 50 ± 5 percent and wind speed shall be maintained at 0.4 ± 0.05 meters per second.

Total thermal resistance (R) to heat exchange is calculated in the test conditions stated above and using:

𝑅 =

𝑆𝐴 × ∆ 𝑇

𝑃

Where:

R = the thermal resistance, m2 °C/watt

SA = total surface area of seven regional segments, m2 delta T = temperature gradient between the hand model surface and ambient air temperature, °C

P = Total power input, watts

If required (see 6.2), gloves 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.

4.5.3 Spectral reflectance test. Spectral reflectance data shall be obtained from 600 to 860 nanometers at

20-nanometer 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 nanometers at 860 nanometers. 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 either Commission of Illumination (CIE) source A or CIE source D65. Measurements shall be taken on a minimum of two different areas and the data averaged. The measured areas should be at least 6 inches away from the selvage. The specimen shall be measured as a single layer backed with three layers of the same fabric and shade. The specimen shall be viewed at an angle no greater than 10 degrees from normal, with the specular component included. Measurements shall be taken on a minimum of two different areas. Specimens shall be oriented in different directions during testing. When possible, the specimens tested shall not contain the same warp or filling yarns/Wales or courses when presented to the sample port. Camouflage materials should be measured with the appropriate aperture size to ensure that only one color is measured at a time. Always try to use the largest aperture possible. Photometric accuracy of the spectrophotometer shall be within 1 percent and wavelength accuracy within 2 nanometers. Any color having spectral reflectance values falling outside the limits at four or more of the wavelengths specified shall be considered a test failure.

4.5.4 Visual shade matching. The color and appearance of the glove shall match the standard sample when viewed using the AATCC EP 9, Option C, (see 6.5) with a primary light source simulating the spectral quality of average daylight, CIE Illuminant D65, with a color temperature of 6500 (± 200) Kelvin (K) illumination of 100 (±

20) foot candles. Alternatively, the color and appearance of the (item) shall match the standard sample with a primary light source simulating artificial daylight, CIE Illuminant D75, with a color temperature of 7500K (± 200) illumination of 100 (± 20) foot candles in lieu of D65. (See 6.5.1). The (item) shall also be a good match to the standard sample with a secondary source simulating the spectral quality of incandescent lamplight, CIE Illuminant

A, with a color temperature of 2856K (± 200).

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 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 Intended use. The gloves are intended for wear by military personnel of the Department of Defense during intermediate cold weather conditions.

6.2 Acquisition requirements. Acquisition documents should specify the following:

a. Title, number, and date of this specification.

b. Sizes required (see 1.2).

c. The specific issue of individual documents referenced (see 2.2 and 2.3).

d. Applicable Government patterns, including revisions.

e. When first article sample is required (see 3.1.1, 4.2, and 6.3).

f. When conformance inspection is required (see 3.1.2).

g. AQLs (see 3.11, 4.3.1, and 4.4.1).

h. Number of first article inspection samples (see 4.2.1).

i. When end item testing may be other than as specified in referenced documents (see Error! Reference source not found.).

j. Sampling plans for components.

k. Leather testing requirements and sampling plan (see 4.4.).

l. When the gloves require thermal insulation testing by the Government (see 4.5.2).

m. Shade standard information (see 6.5.2).

n. Packaging requirements (see 5.1).

6.3 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 4.2.

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 that 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 submit alternate bids unless specifically requested to do so in the solicitation.

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

6.5 Visual shade matching. In 2017, 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°) angle relative to the horizontal. The observer will view the specimens at a 90° angle, relative to the plane of the specimens”

6.5.1 D75 illuminant. In 2022, the U.S. Military (All Services) accepted D65 as the new preferred light source for visual shade matching due to the supply chain issues with D75. DD1222’s should reflect which light source is used. If the light source is not indicated on the DD1222, D65 will be assumed by the Government Shade

Laboratory.

6.5.2 Shade criticality. Some items may be deemed “non-shade-critical” by the contracting agency and alternative shade standards or information regarding shade may be specified in the contract or order (see 6.2). It is recommended that manufacturers refer to the contract or order to determine the criticality of the shade matching or alternate shade standards that are acceptable.

6.6 Sources of supply.

6.6.1 Basic material. Style #MMILAM 103 (see 3.5.1Error! Reference source not found.) has been shown to meet the requirements of this specification. A known source of this material is:

MMI Textiles

1 American Rd, Suite 950

Brooklyn, OH 44144

Phone: 440-899-8050

6.6.2 Clasp. ITW Nexus “Low-Pro Center Release” buckle, part #102-0038 (see 3.5.) has been shown to meet the requirements of this specification. A known source of this component is:

ITW Nexus

21601 South Harlem Avenue

Frankfort, IL 60423

Phone: (708) 720-3025

Fax: (708) 720-2612

6.7 Subject term (key word) listing.

Fourchette

Laminate

Leather

Capacitive

FIGURE 1. Back of hand view.

FIGURE 2. Palm view.

FIGURE 3. Desired fingertip fullness.

CONCLUDING MATERIAL

Custodian: Preparing activity:

Navy – MC Navy – MC

Review activities:

Army – GL

Navy –AS, CG1, NU

Air Force – 11

DLA – CT

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/