MC-PD-25-004_Shell Fabric_ FINAL_DRAFT.docx

INCH-POUND

MC-PD-25-004

DRAFT

PURCHASE DESCRIPTION

FABRIC, NYLON, WATER AND WIND RESISTANT

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 (PD) covers the requirements for a water- and wind-resistant nylon fabric used in a variety of end-items worn by personnel of the Department of Defense, including the extreme cold weather bootie.

2. CLASSIFICATION

2.1 Classes and sizes. The fabric covered by this purchase description shall be one type and available in the following classes, as specified (see 7.3).

2.1.1 Classes.

3. SALIENT CHARACTERISTICS

3.2 Description. The fabric is water repellent and wind resistant. Fabric is quick drying if it becomes wet or damp, and durable to repeated laundering.

3.2 Guide samples. Samples, when furnished, are solely for guidance and information to the contractor. Variations from this PD may appear in the sample in which case this PD shall govern.

Beneficial comments, recommendations, additions, deletions, clarifications, and any other data that may improve this document should be sent to: Marine Corps Systems Command USMC_STDZ@usmc.mil, with the subject line “Document Comment”.

AMSC N/A

FSC 8305

3.3 Materials. The fabric shall meet the requirements in table I.

Table I. –Fabric Characteristics and Requirements.

Yarns per inch

Breaking Strength; pounds (minimum)

Tear Strength; pounds (minimum);

ASTM E96/E96M

180 ± 2 ℉ for 30 min

Spray Rating (minimum)

Note 1/ and AATCC TM22

Dimensional stability; percent (maximum)

Colorfastness to: rating (minimum)

Light (40 AFU or 170 kJ/m2nm @ 420 nm)

1/ Testing consists of AATCC TM135 (see 3.3.1.1) followed by the specified assessment method.

3.3.1.1 Laundering. Laundering method AATCC TM135 using options 1, V, A.i (Normal/Cotton Sturdy, 60 ±3℃[140±5℉], Tumble dry cotton sturdy) with AATCC Detergent (non-phosphate). To eliminate build-up of residual detergent, the last cycle shall be run without detergent.

3.3.1.2 Visual matching (all types and classes). Unless otherwise specified in the contract or order (see 7.3), the color and appearance of the fabric shall match the standard sample when viewed using the AATCC EP 9, Option C, (see 7.6) 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 fabric 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 7.6). The fabric 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).

3.3.1.3 Toxicity. The finished fabric shall not present a health hazard and shall show compatibility with prolonged direct skin contact with requirements as specified in 40 CFR § 798.2250, Dermal Toxicity, and 40 CFR § 798.4100, Dermal Sensitization. Chemicals recognized by the Environmental Protection Agency (EPA) as human carcinogens shall not be used. When the toxicity requirement can be demonstrated with historical use data, toxicity testing may not be required on the finishing treatments used. If dermal toxicity testing is required (see 7.3), it should be conducted in accordance with Title 40 CFR, applicable sections, which are consistent with OECD Guidelines for the Testing of Chemicals, Section 4, Test Nos. 404 and 406 (see 7.7).

3.3.1.4 Spectral reflectance. Spectral reflectance shall be as specified in 3.3.1.4.2, 3.3.1.4.3 or 3.3.1.4.4, as applicable to the class being assessed. Spectral reflectance data shall be determined on the face side and shall be obtained from 600 to 860 nanometers (nm) at 20 nm 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 either 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 six 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. The standard aperture size used in the color measurement device shall be 1.0 to 1.25 inches in diameter. Any color having spectral reflectance values falling outside the limits at four or more of the wavelengths specified shall be considered test failure. Photometric accuracy of the spectrophotometer shall be within one percent and wavelength accuracy within two nm.

3.3.1.4.1 Accelerated laundering. In preparation for the Spectral Reflectance Durability Test, the cloth shall be laundered separately in accordance with AATCC TM61 (Option 3A) except that a 4-gram sample size shall be used and that the procedure shall be conducted using ten stainless steel spheres and the 1993 AATCC Standard Reference Detergent without optical brightener. The samples shall then be evaluated for spectral reflectance. A sample size large enough to evaluate the spectral reflectance shall be used.

3.3.1.4.2 Spectral reflectance Class 1, Urban Gray 505. The spectral reflectance for Class 1 shall conform to the requirements specified in Table II, initially and after laundering, when tested as specified in 3.3.1.4.

TABLE II. Spectral reflectance requirements (percent), Class 1, Urban Gray 505.

Wavelength Nanometers (nm) Urban Gray 505

3.3.1.4.3 Spectral reflectance Class 2, Tan 499. The spectral reflectance for Class 2 shall conform to the requirements specified in Table III, initially and after laundering, when tested as specified in 3.3.1.4.

TABLE III. Spectral reflectance requirements (percent), Class 2, Tan 499.

Wavelength

Tan 499

3.3.1.4.4 Spectral reflectance Class 3, Coyote 498. The spectral reflectance for Class 3 shall conform to the requirements specified in Table IV, initially and after laundering, when tested as specified in 3.3.1.4.

TABLE IV. Spectral reflectance requirements (percent), Class 3, Coyote 498.

Wavelength

Coyote 498

3.4 Length and put-up. For Government procurement only, unless otherwise specified (see 7.3), the cloth shall be furnished in continuous lengths of not less than 40 yards and shall be put-up full width on rolls.

3.5 Labels. Each roll of finished cloth shall be labeled or ticked for fiber content in accordance with the Rules and Regulations under the Textile Fiber Products Identification Act (15 U.S.C. § 70) (see 7.2.6).

3.6 Workmanship. The finished fabric shall conform to the quality of the product established in this document. The fabric shall be free from defects which would affect its serviceability, appearance, uniformity and quality assurance standards defined by the technical data in the procurement documents.

4. REGULATORY REQUIREMENTS. Unless otherwise specified, the offeror/contractor is encouraged to use recovered, recycled, bio based, and environmentally preferable materials to the maximum extent practicable, in accordance with paragraph 23.403, 23.404(b) of the Federal Acquisition Regulation (FAR), or the sustainable acquisition of EO 13693; as applicable.

5. PRODUCT CONFORMANCE PROVISIONS.

5.1 Product conformance. The fabric shall meet the salient characteristics of this Purchase Description, conform to the producer’s own specifications, standards, and quality assurance practices. The Government reserves the right to require proof of such conformance or to conduct any testing necessary to ensure quality. Failure of any required test may be cause for rejection of the lot.

5.2 Market acceptability. The finished fabric offered must have been sold to the government or commercial market.

5.3 First Article Testing. When first article testing is required (see 7.3) end item inspection (see 5.4), visual examination (see 5.5) and physical properties testing (see 3.3) required will be cited in the contract or order.

5.4 End item inspection procedures. Sampling for inspection shall be conducted in accordance with ASQ/ANSI Z1.4 - Sampling Procedures and Tables for Inspection of Attributes (see 7.2.3). When a first article test is required (see 7.3), it shall include the visual examination (see 5.4), dimensional examination (see 5.5) and any physical properties testing (see 3.3. and 3.4) necessary to ensure quality of the finished fabric.

5.5 Visual examination. The finished fabric shall be examined for defects in shade, construction, and specific defects listed in Table V as defined in ASTM D3990. The lot size shall be expressed in yards of fabric. The sample unit shall be one yard.

Table V. End Item Visual Defects

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

Any color not as specified.

6. PACKAGING. Preservation, packing, and marking shall be as specified in the contract or order.

7. NOTES. The following information is to be used for reference only and is not binding. Any information provided is not intended to be exhaustive or all-inclusive.

7.1 Intended use. The fabric is designed for use in the extreme cold weather (ECW) clothing and equipment to provide wind- and water-resistance to end items.

7.2 Source of Documents.

7.2.1 Government documents may be obtained online at https://www.quicksearch.dla.mil.

7.2.2 AATCC documents may be obtained online at https://www.aatcc.org.

7.2.3 ASQ documents may be obtained online at https://www.asq.org.

7.2.4 ASTM International documents may be obtained online at https://www.ASTM.org.

7.2.5 The Code of Federal Regulations (CFR) may be obtained online at https://www.ecfr.gov.

7.2.6 Federal Trade Commission documents are available online at https://www.ftc.gov.

7.3 Acquisition requirements. Acquisition documents should specify the following:

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

b. Class(es) required (see 2.1).

c. Shade standard information (see 3.3.1.2)

d. Length and put-up information (see 3.4)

d. When first article testing is required (see 5.3).

e. First article inspection sample yardage (see 5.3)

f. When toxicity testing is required (see 3.3.1.3)

g. Packaging requirements (see 6)

7.4 Known Sources. The following manufacturers have provided products that have demonstrated the ability to meet the requirements of this PD. This listing is not intended to be all-inclusive or exhaustive, and other products may be used.

7.4.1 Wind and water-resistant fabric: (Epic™ by Nextec)

Nextec Telephone: 207-749-2452 www.nextec.com

7.6 Use of D65 light source. In 2022, the U.S. Military 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.

7.7 Toxicity testing. OECD Test No. 406: Skin Sensitization and OECD Test No. 404: Acute Dermal Irritation/Corrosion have been suggested to adequately assess this requirement, but other methods may be used.

DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.