GL-PD-19-03RevB-CWCB_03 Nov 2020_FINAL.pdf

INCH-POUND

GL-PD-19-03B

03 November 2020

SUPERSEDING

GL-PD-19-03A

20 April 2020

PURCHASE DESCRIPTION

BOOT, COMBAT, COLD WEATHER

This Purchase Description is approved for use by all Departments and Agencies of the Department of Defense (DOD).

1. SCOPE

1.1 Scope. This Purchase Description covers the requirements for a Coyote 498 colored combat boot for use in cold weather environments. The boot will have a waterproof upper, plain toe, partial speed lace closure system, and built-in insulation material. The quarter panels and tongue/gusset may be either leather or fabric, and the soling construction may be either direct attach or cement.

1.2 Classification. The boot will be available in the following sizes and widths as specified.

1.2.1 Schedule of sizes and widths.

Size: 3 through 16 (whole sizes only) Widths: Regular (D) Wide - (EE)

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.

Comments, suggestions, or questions on this document should be addressed to: Department of the Army, Natick Soldier Research, Development and Engineering Center, 10 General Greene Avenue Natick MA 01760. ATTN: FCDD-SCD-PE

AMSC N/A FSC 8430

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

GL-PD-19-03 Rev B

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 noted in the solicitation or contract.

COMMERCIAL ITEM DESCRIPTION

A-A-55093 - Laces, Nylon

DEPARTMENT OF DEFENSE SPECIFICATIONS

MIL-PRF-3122 - Leather, Cattlehide, for Footwear Uppers and Gussets, Chrome Tanned, Fatliquored MIL-PRF-17337 - Webbing, Textile, Woven Nylon MIL-DTL-32439 - Cloth, Duck Textured Nylon

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

2.2.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation or contract.

DRAWINGS

U.S. ARMY COMBAT CAPABILITIES DEVELOPMENT COMMAND SOLDIER CENTER

2-1-1635 - Speed Lacer Assembly

(Copies of drawings are available from the U.S. Army Combat Capabilities Development Command (CCDC), Soldier Center, ATTN: FCDD-SCD-PE 10 General Greene Avenue, Natick, MA 01760-5019)

OTHER GOVERNMENT DOCUMENTS AND PUBLICATIONS

ENVIRONMENTAL PROTECTION AGENCY

Federal Insecticide, Fungicide and Rodenticide Act (FIFRA) (40 CFR Part 162) State Registration of Pesticide Products

(Copies of this document are available online at https://www.epa.gov/pesticides.)

PURCHASE DESCRIPTIONS

CR-PD-03-18 - Socks, Boot, Antimicrobial

(Copies of this document are available through the contracting activity.)

https://quicksearch.dla.mil/ https://www.epa.gov/pesticides

2.3 Non-Government standards and other 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 TM22 - Test Method for Water Repellency: Spray

(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 of Attributes

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

ASTM INTERNATIONAL

ASTM D412 - Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers - Tension ASTM D471 - Standard Test Method for Rubber Property - Effect of Liquids ASTM D624 - Standard Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers ASTM D1052 - Standard Test Method for Measuring Rubber Deterioration - Cut Growth Using Ross Flexing Apparatus ASTM D1777 - Standard Test Method for Thickness of Textile Materials ASTM D1814 - Standard Test Method for Thickness of Leather Units or remove leather thickness of upper leather from Table X. Leather thickness is referred to in ounces where one ounce is 1/64 inch thick ASTM D2208 - Standard Test Method for Breaking Strength of Leather by the Grab Method ASTM D2240 - Standard Test Method for Rubber Property - Durometer Hardness ASTM D3273 - Standard Test Method for Resistance to Growth of Mold on the Surface of Interior Coatings in an Environmental Chamber ASTM D3574 - Standard Test Methods for Flexible Cellular Materials - Slab, Bonded, and Molded Urethane Foams ASTM D5963 - Standard Test Method for Rubber Property - Abrasion Resistance (Rotary Drum Abrader) ASTM F1291 - Standard Test Method for Measuring the Thermal Insulation of Clothing Using a Heated Manikin

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

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

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 1971 - Standard on Protective Ensemble for Structural Fire Fighting and

Proximity Fire Fighting

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

SATRA GLOBAL TEST METHODS

SATRA TM2 - Tensile properties of insole materials SATRA TM3 - Flexing index SATRA TM14 - Resistance to scuffing by mild circular abrasion SATRA TM31 - Abrasion Resistance – Martindale method SATRA TM64 - Compression Set – constant stress method SATRA TM77 - Flexing machine - water penetration test SATRA TM80 - Transverse tensile strength of sheet materials SATRA TM83 - Measurement of the area shape retention and collapsing load of formed box toe (toe puff) and Counter (stiffener) materials SATRA TM98 - Dimensional stability with changes in atmospheric humidity SATRA TM101 - Surface peel strength of insole materials SATRA TM144 - Friction (slip resistance) of footwear and floorings SATRA TM184 - Friction of Insocks SATRA TM411 - Peel Strength of Footwear Sole Bond

(Copies of these documents are available online at https://www.satra.com/test_methods.)

(Non-Government standards and other publications are normally available from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informational services.)

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 (see 6.3) in accordance with 4.2.

3.2 Standard sample. Unless otherwise indicated, the finished cold weather combat boot shall match the standard sample of cattlehide leather for shade and sueded flesh appearance, and be equal to or better than the standard sample with respect to all characteristics for which the https://www.nfpa.org/ standard sample is referenced. Exterior textiles shall match standard sample for shade and appearance and be equal to or better than the standard sample with respect to all characteristics for which the standard sample is referenced (see 6.4).

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 Material requirements.

3.4.1 Upper leather. The leather shall be flesh out grain leather or split suede. The leather shall be drum-dyed Coyote 498 with color penetrating throughout the thickness of the hide so that the chrome tannage is not visible. The leather for the vamps, quarters (if leather), backstay/ pull-tab (if leather), and outside counter pockets shall conform to MIL-PRF-3122, Type I, Class 4, Treatment A and B. The leather for the eyelet stays, top band (if leather), and gusset/tongue (if leather) shall conform to MIL-PRF-3122, Type II, Class 4, Treatment A.

The following exceptions to MIL-PRF-3122 shall be applicable for the upper leathers:

a. The flesh surface shall be sueded as to produce a fine uniform nap.

b. The grain surface shall be lightly buffed to remove the surface of the grain only.

c. The finish requirements for the leather shall not apply.

d. The tear strength requirements for the eyelet stays, top band (if leather), and gusset/tongue (if leather) shall not apply.

e. The thickness shall be as specified for the cut parts in Table VIII.

f. As an option, split cattle hide leather otherwise conforming to the requirements listed above and meeting the thickness requirements specified in Table VIII may be used.

g. As an option, the eyelet stays, top band (if leather), and gusset/tongue (if leather) may conform to MIL-PRF-3122, Type I, Class 4, Treatment A and Treatment B.

h. As an option, the quarters may conform to MIL-PRF-3122, Type II, Class 4, Treatment A.

3.4.2 Insoles. The insole shall meet the requirements specified in Table I when tested as specified in 4.4.2.

TABLE I. Insole performance requirements.

Characteristics Requirements

Thickness, inches (min.) 0.09 Fungal resistance, Level (min) 10 Wet Tensile, kgf/cm2( min.) 70 Flexing Index, (5000 cycles) (min.) 3.7 Abrasion Resistance Non-Woven board, revs dry/wet (min.)

25,600 /6400

Transverse Tensile-Dry, kgf/cm2( min.) 8 Dimensional Stability, % (max.) 0.7 Peel Strength, kgf/cm2( min.) 0.5

3.4.3 Fabrics.

3.4.3.1 Quarter side panels and tongue/gusset. If not leather, the fabric for the quarter side panels and tongue/gusset shall conform to MIL-DTL-32439, Type I, Class 4, Style A. The color of the fabric shall be Coyote 498, matching the standard sample (see 3.2). Construction of the end item shall be such that the seam strength between the 1000-denier nylon and all other components is adequate for the life of the item.

3.4.3.1.1 Quarter side panels and tongue/gusset (alternate). As an alternate, the fabric for the quarter side panels and tongue/gusset may be 100 percent nylon 6,6 or equal; 2x2 basket weave, 1,000 denier in both warp and filling direction; weighing a minimum of 8.25 ounces per square yard. The material shall be water resistant and backed with a microporous polytetrafluorethylene film. The composite fabric shall conform to the physical requirements listed in Table II when tested as specified in 4.4.2. Construction of the end item shall be such that the seam strength between the 1000-denier nylon and all other components is adequate for the life of the item.

TABLE II. Quarter side panel and tongue/gusset fabric requirements.

Water Repellency (min.) 90, 90, 90 1/

1/ These AATCC TM 22-Test Method for Water Repellency: Spray Ratings are equivalent to an ISO 4 rating

3.4.3.2 Backstay and ankle reinforcement webbing. If present, any ankle reinforcement webbing shall be nylon conforming to MIL-PRF-17337, Class 1 or 2. If not leather, the backstay shall be nylon webbing conforming to MIL-PRF-17337, Class 1 or 2. The color shall be Coyote 498 matching the standard sample (see 3.2). The following exceptions to MIL-PRF-17337 shall be applicable for the reinforcement and backstay webbing:

a. As an option, yarn sizes of 1000 denier (warp and filling) for shuttle loom construction and a combination of 1000 denier warp and 500 denier filling for shuttleless construction may be used.

b. The minimum colorfastness requirements for crocking shall be 2.0 (wet) and 3.0 (dry).

3.4.3.3 Waterproof laminate boot lining. The boot lining shall be constructed from pattern pieces cut from waterproof laminate material. The lining shall consist of a textile face layer, an insulated batting, a waterproof film, and a tricot knit cloth. The tricot knit cloth shall be laminated to the outside (furthest from the foot) of the waterproof film. The insulated batting shall be located on the foot facing side of the waterproof film. A face layer shall be sewn to the foot facing side of the insulated batting.

3.4.3.3.1 Face layer. The face layer shall consist of an abrasion resistant textile. If used, any antimicrobial technology shall be an EPA registered antimicrobial. The finished lining fabric shall not present a health hazard. Chemicals recognized by the Environmental Protection

Agency (EPA) as human carcinogens shall not be used. The color of the face layer shall be grey, green, or black. The requirements of this paragraph shall apply to all lining within the boot including the fabric top cover (face cloth) attached to the removable cushioned insert.

3.4.3.3.2 Insulated batting. The insulated batting shall consist of at least 200 grams per square meter of performance insulation material on the foot facing side of the waterproof film.

The boot may contain additional insulation material outside of the waterproof film. The composition and thermal resistance of the insulated batting shall be such that, in its completed configuration, the boot conforms to the thermal insulation requirements listed in 3.8.3.

3.4.3.3.3 Waterproof film. The waterproof film shall be impervious to liquid water for the life of the boot and breathable.

3.4.3.3.4 Tricot knit. The tricot knit cloth shall be nylon, weighing a minimum of 1.0 ounce per square yard. The color of the tricot knit cloth shall be natural unless otherwise specified in the contract or solicitation.

3.4.3.3.5 Adhesive. The adhesive for laminating the layers together shall be such that the laminate cloth meets the requirements of this specification. The adhesive shall create no adverse health hazards when used as intended.

3.4.4 Pull tab. The boot shall contain a pull tab with a circumference of 3-1/2 to 3-3/4 inches when completed. The pull tab may be either leather (see 3.4.1) or nylon webbing. If used, webbing shall meet the requirements listed in 3.4.3.2.

3.4.5 Box toes. The boot shall contain a thermoplastic box toe conforming to the performance requirements of Table III when tested as specified in 4.4.2.

3.4.6 Counters. The boot shall contain a thermoplastic heel counter conforming to the performance requirements of Table III when tested as specified in 4.4.2. The counter shall conform to fit the last used and shall fill the counter pocket area.

TABLE III. Box toes and counters performance requirements.

Initial Collapsing Load (N) (min) 130 Resilience (%) (min) 25 Moisture Resistance (%) (min) 80 Area Shape Retention (%) (min) Initial 10th collapse

3.4.7 Shank. The boot shall include a fiberglass shank bonded to the insole and/or midsole.

The fiberglass shank (glass and resin area), when cured, shall be 3/4 (± 1/4) inch in width. The rear end of the shank shall be placed 2-1/2 (± 1/2) inch in front of the rear end of the boot, the forward end of the shank shall not extend into the ball area, and the shank shall be oriented along the center line of the boot. The shank lengths shall conform to the schedule as specified in Table

IV.

3.4.7.1 Shank (alternate). As an alternate, steel shanks may be used. The width of the steel shank shall be 5/8 (± 1/32) inch for boot sizes 2 through 6-1/2 (all widths), 7 through 8-1/2 (N and R widths). For all other sizes and widths, the steel shank shall be 1 (± 1/32) inch. The shank shall be made with two (2) ribs for the 5/8-inch width and three (3) ribs for the 1-inch width.

The rear end of the shank shall be placed 2-3/4 (± 1/4) inch in front of the rear end of the boot, the forward end of the shank shall not extend into the ball area, and the shank shall be oriented along the center line of the boot. The shank lengths shall conform to the schedule as specified in Table IV.

TABLE IV. Shank lengths.

Boot Size (all widths) Shank Length (inches) Minimum Maximum

Boot sizes 2 through 6.5 3-3/8 4-1/8 Boot sizes 7 through 10.5 4-1/8 4-5/8 Boot sizes 11 through 12.5 4-5/8 4-7/8 Boot sizes 13 through 16 5 5-3/8

3.4.8 Speed lace assembly. The speed lace assembly shall be brass or aluminum, with a coated nylon finish in accordance with Drawing 2-1-1635. The speed lace loops shall be positioned above the comfort “V” notch on the eyestay. Sizes 3-13 shall have a minimum of four (4) pair of speed lace loops, sizes 14-16 shall have a minimum of five (5) pair of speed lace loops. The color shall be Coyote 498 matching the standard sample (see 3.2). Testing shall be as specified in 4.4.2.

3.4.9 Eyelets. There shall be a minimum of five (5) pair of eyelets below the comfort “V” notch on the eyestay for all sizes. Eyelets shall be brass, with a coated nylon gloss finish, size AA. The color shall be Coyote 498 matching the standard sample (see 3.2). Testing shall be as specified in 4.4.2.

3.4.10 Removable cushion insert. Unless otherwise specified in the contract or solicitation, the removable cushion insert shall utilize an abrasion resistant fabric top cover, black in color.

The removable cushion insert shall be a low-density polyurethane heel cup support made of a pure polyether polyurethane system, medium black in color unless otherwise specified in the contract or solicitation, meeting the requirements listed in Table V when tested as specified in

4.4.2. The total thickness of the insert shall be 0.180 (± 0.025) inch forward of the instep, and

0.250 (± 0.030) inch elsewhere. The cushion insert shall be mated by size to the correct size boot.

TABLE V. Removable cushion insert requirements.

Density, lb./cu. ft. 16-20 Foam Hardness, Shore 00 50-65 Tensile strength, psi (min) 82 Compression set @ 25%, percent (max) 5 Compression set @ 50%, percent (max) 5

3.4.11 Laces. The color of the laces shall be Coyote 498 matching that of the standard sample (see 3.2). The length of the laces shall be a minimum of 72-inches for a size 10R, with the length graduating up and down with size for all other sizes. The laces shall conform to Type III, Class 1 of A-A-55093. Testing shall be as specified in 4.4.2.

3.5 Soling system requirements.

3.5.1 Soling construction and design. The soling shall be directly attached to the upper through an injection molding or open pouring method (i.e. direct attach construction). The dimensions and characteristics of the cushion midsole shall be sufficient to meet all of the requirements listed within this document.

3.5.1.1 Soling construction and design (alternate). As an alternate, a cement construction may be used. If cement construction, the soling shall consist of both a cushion midsole and rubber outersole. The dimensions and characteristics of the cushion midsole shall be sufficient to meet all of the requirements listed within this document.

3.5.2 Midsole requirements. The boot shall contain a pure polyether polyurethane midsole extending from heel to toe. If the midsole is visible in the finished boot, the midsole shall be Coyote 498 in color matching the standard sample (see 3.2). The requirements for the pure polyether polyurethane cushioned midsole are based on testing done on slabs (according to ASTM procedures) and not actual midsoles. The requirements shall be as specified in Table VI when tested in accordance with 4.4.2.

TABLE VI. Midsole polyether polyurethane requirements.

Characteristic Requirements

Density, gm/cc 0.35-0.60 Hardness, shore A 40-75 Tensile strength, kgf/cm2 (min.) 18 Elongation, percent (min.) 250 Tear Strength, Die T, kg/cm (min.) 3.7 Volume Swell, percent (max.), IRM 903 Oil at 24 hrs. 10 Compression set, percent (max.) 20 Ross Flex (1-inch x 6-inch) at -5 °C, percent (max.)

150,000 cycles 900

3.5.3 Outersole. Unless otherwise specified in the contract or solicitation, the outersole shall utilize a 360-Degree lug design and have a minimum base thickness of 2.5 mm and a minimum lug depth of 4.0 mm. The color of the rubber outersole, including any identification plug, shall be Coyote 498.

3.5.3.1 Rubber outersole compound requirements. The requirements for the rubber outersole are based on testing done on slabs (according to ASTM procedures) and are not actual soles.

The requirements shall be as specified in Table VII when tested in accordance with 4.4.2.

TABLE VII. Rubber outersole compound requirements.

DIN abrasion (max) 150 Hardness, shore A 52-67 Tear strength, die C, lbs. (min.) 200 Tensile strength, psi (min.) 1,450 Elongation, percent (min.) 450 Cold flex, -23 °C percent (max.)

7,500 flexes

Transitional hardness (max. change) After 2 hrs. at -40°C

After 2 hrs. at -23°C

+15 point shore hardness

+10 point shore hardness

Slip index, rough/ice (min.) 0.20

3.6 Boot design and construction. The boot shall be Coyote 498 in color and shall have a waterproof upper, partial speed lace closure system, and built-in insulation material. The soling shall be bonded to the upper using either direct attach or cement construction.

3.6.1 Height. The height of the finished boot, measured upward on the outside from tread area at breast of heel, from the bottom of the outersole to the top of boot shall be 10 tolerance of (+ 0.5, - 0.25) inches on size 10R and shall graduate up and down between sizes and widths when tested as specified in 4.4.4.

3.6.2 Boot weight. The weight of a finished boot (size 10R) with cushion insert shall be less than or equal to 2.4 pounds per boot when tested as specified in 4.4.4.

3.6.3 Insulation material. The boot shall contain an insulated batting of at least 200 grams per square meter of performance insulation material located on the foot facing side of the waterproof film. The boot shall contain additional insulation material such that, in its completed configuration, the boot shall conform to the thermal insulation requirements listed in section

3.8.3. The additional insulation material may be located outside of the waterproof film.

3.6.4 Upper design. The vamp, eyelet stays, and outside counter pocket shall be leather conforming to the requirements listed in 3.4.1. The quarters, backstay, gusset/tongue, and top band shall be leather conforming to the requirements listed in 3.4.1 or fabric conforming to the requirements listed in 3.4.3. The boot shall contain a pull tab conforming to the requirements listed in section 3.4.4. Ankle reinforcement webbing conforming to the requirements listed in section 3.4.3.2 is allowed but not required.

3.6.5 Cutting uppers. The leather shall conform to the thickness specified in Table VIII when tested as specified in 4.4.2. All of the upper parts may be split or shaved, provided they meet the requirements listed in 3.4.1. Skiving of upper leather parts is permitted.

TABLE VIII. Thickness of leather uppers.

Part Thickness (ounces)

Minimum Maximum Vamp 4-1/2 6 Quarter 2-1/2 6 Outside Counter Pocket 4-1/2 6 Eyelet stay 2-1/2 4-1/2 Gusset/Tongue 2-1/2 4-1/2 Collar 2 4-1/2 Backstay 4-1/2 6

3.7 Lasts and molds. The boots shall be made on commercial last model “FMT U3813-1 Military” or equal based on Government approval.

3.8 End item requirements.

3.8.1 Bond strength. The bond achieved between the boot upper, cushion midsole, and outersole shall be resistant to any delamination for the life of the item.

3.8.1.1 Outersole to cushion midsole bond strength. Boot models with a cushion midsole that is externally visible shall require bond strength testing between the midsole and outersole. The outersole to cushion midsole bond strength shall not be less than 100 pounds. Constructions in which the outersole is bonded directly to the upper may be exempted from this requirement, pending Government approval. Testing shall be performed on the end item as specified in 4.4.4.

3.8.1.2 Entire sole to upper. The bond strength between the soling in contact with the upper (midsole and/or outersole, depending on the construction) shall not be less than 130 pounds.

Testing shall be performed on the end item as specified in 4.4.4.

3.8.1.2.1 Entire sole to upper (alternate). As an alternate, the bond strength between the soling in contact with the upper (midsole and/or outersole, depending on the construction) shall not be less than 4 N/mm. Testing shall be performed on the end item as specified in 4.4.4.

3.8.2 Leakage. The finished boots shall not exhibit any leakage when tested as specified in 4.4.4.

3.8.3 Thermal insulation. The boot, in its completed configuration, shall meet or exceed the thermal resistance (clo) values listed in Table IX, when tested as specified in 4.4.4.

TABLE IX. Thermal insulation requirements.

Toe clo (min.) 1.30 Heel clo (min.) 1.50 Sole clo (min.) 2.25

3.8.4 Flame resistance. The boots shall meet the Flame Resistance Test Four requirements of NFPA 1971, 2007 edition (Reference: section 7.10.2) when tested as specified in 4.4.4.

3.8.5 Upper heat resistance. The boots shall meet the Conductive Heat Resistance Test 1 requirements of NFPA 1971, 2007 edition (Reference: section 7.11.3) when tested as specified in 4.4.4.

3.8.6 Sole heat resistance. The boots shall meet the Conductive Heat Resistance Test 2 requirements of the NFPA 1971, 2007 edition (Reference: section 7.10.1) when tested as specified in 4.4.4.

3.9 Marking, permanent identification. With the exception of product demonstration models (PDMs), the Contractor shall permanently mark the correct American and Mondopoint sizes and widths, and the contract number (Example: 04-D-1234) on the inside quarter panel side area.

The marking may be in the form of a label and shall be done in accordance with acceptable commercial practices, and it shall not reduce footwear functionality. The boot shall contain a manufacturing tracking lot number. As an option, each boot may contain a sew-in label identifying the waterproof membrane utilized. Component and boot feature hang-tags may be attached to the boots. Embossing of a brand name is permitted. The unit packs shall include a Universal Product Code (UPC) symbol for each National Stock Number (NSN) as specified in the contract solicitation. Each symbol must be human and scanner readable.

3.9.1 Instruction/ and care and use label tag. The instruction/label tag is to be tied to the finished boots or placed inside. The print size shall be 8 to 10 points, 1/8-inch (± 1/32 inch).

The instruction/label tag and care and use information shall be printed using the data specified on Figures 1 and 2. Each item shall be individually bar-coded. The bar-coding element shall be a 13 digit National Stock Number (NSN). The bar-code type shall be a medium to high density, shall be located so that it is completely visible on the item, and shall be attached in a way that causes no damage to the item.

3.10 Workmanship. The finished boots shall conform to the quality of product established by this Purchase Description. The occurrence of defects shall not exceed the contractor's own quality assurance standards and the quality assurance standards defined by the technical data in the bid package. Internal seams shall not cause irritation, "hot-spots", blisters, or other damage to the user.

4. VERIFICATION

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

a. First article inspection (see paragraph 4.2).

b. Conformance inspection (see paragraph 4.3).

4.2 First article inspection. First article inspection when required (see 3.1.1) shall be examined for the defects specified in 4.4.3 and tested for the characteristics in 4.4.4.

4.3 Conformance inspection. Conformance inspection shall include the examination of

4.4.1 and the tests of 4.4.3 through 4.4.2 as applicable. Sampling for inspection shall be performed in accordance with ASQ/ANSI Z1.4 and with acceptance quality limits as specified in the contract and/or order, except where otherwise indicated.(see 6.2).

4.4 Component and material inspection.

4.4.1 In-process inspection. Inspection shall be made at any point or during any phase of manufacturing to determine whether the components are as specified or operations and/or assemblies are accomplished as specified. The Government reserves the right to exclude from consideration for acceptance any material or service for which in-process inspection has indicated nonconformance.

4.4.2 Component testing. The components shall be tested for the characteristics listed in Table X in accordance with the specified test methods. Unless otherwise specified in the contract or solicitation, the sampling plan shall be as follows:

Lot size (yards or units) Sample size Under 800 2

801 – 22,000 5 22,001 and above 8

TABLE X. Component tests.

Material Characteristics Requirement Paragraph Test Method

Upper Leather

Shade Evaluation 3.4.1 AATCC EP9 1/ Physical Characteristics 3.4.1 MIL-PRF-3122 Thickness 3.6.5 ASTM D1814

Insole Thickness 3.4.2 ASTM D1777 2/

Fungal resistance 3.4.2 ASTM D3273 Wet Tensile 3.4.2 SATRA TM2 Flexing Index 3.4.2 SATRA TM3 Abrasion Resistance Cellulose board Non-Woven board

3.4.2 SATRA TM14

3.4.2 SATRA TM31

Transverse Tensile-Dry 3.4.2 SATRA TM80 Dimensional Stability 3.4.2 SATRA TM98 Peel Strength 3.4.2 SATRA TM101

Fabrics: Quarter Side Panel and Tongue/ Gusset

Shade Evaluation 3.4.3.1 AATCC EP9 1/ Physical Characteristics 3.4.3.1 MIL-DTL-32439 Water Repellency 3.4.3.1 AATCC TM22

Fabrics: Backstay and Ankle Reinforcement Webbing Shade Evaluation 3.4.3.2 AATCC EP9 1/

Physical Characteristics 3.4.3.2 MIL-PRF-17337 Box Toe/Counters Initial Collapsing Load 3.4.5/3.4.6 SATRA TM83

Resilience 3.4.5/3.4.6 SATRA TM83 3/ Moisture Resistance 3.4.5/3.4.6 SATRA TM83 4/ Area Shape Retention 3.4.5/3.4.6 SATRA TM83

Shank Width 3.4.7 Visual 5/

Length 3.4.7 Visual 5/ Number of Ribs (steel only) 3.4.7 Visual

Speed Lace Assembly Shade Evaluation 3.4.8 AATCC EP9 1/ Eyelets Shade Evaluation 3.4.9 AATCC EP9 1/

TABLE X. Component tests. - Continued

Material Characteristics Requirement Paragraph Test Method

Removable Cushion Insert Thickness 3.4.10 Visual 5/

Density 3.4.10 ASTM D3574 Foam Hardness 3.4.10 ASTM D2240 Tensile strength 3.4.10 ASTM D3574 Compression set @ 25% 3.4.10 ASTM D3574 Compression set @ 50% 3.4.10 ASTM D3574

Laces Shade Evaluation 3.4.11 AATCC EP9 1/

Length 3.4.11 Visual 5/ Polyether Polyurethane Cushion Midsole Density 3.5.2 ASTM D3574

Hardness 3.5.2 ASTM D2240 6/ Tensile strength 3.5.2 ASTM D3574 7/ Elongation 3.5.2 ASTM D3574 7/ Tear strength, Die T 3.5.2 ASTM D3574 7/ Volume swell 3.5.2 ASTM D471 7/, 8/ Compression Set 3.5.2 SATRA TM64 9/ Ross flex (1x6 inch) at 5oC 3.5.2 ASTM D1052 10/, 11/

Outersole (rubber) DIN abrasion 3.5.3 ASTM D5963

Hardness, Shore A 3.5.3 ASTM D2240 Tear Strength, Die C 3.5.3 ASTM D624 Tensile Strength 3.5.3 ASTM D412 Elongation 3.5.3 ASTM D412 Cold Flex, 7,500 flexes @ -23°C 3.5.3 ASTM D1052 12/ Transitional Hardness (2 hrs. @ -40°C)

3.5.3 ASTM D2240 13/

1/ The color and appearance of all exterior components shall match the standard sample when viewed using the AATCC EP9 Option C (see 6.7), 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 match to the standard sample under incandescent A illuminant with a color temperature of 2856K (± 200).

2/ A thickness gauge of the dead-weight type equipped with a dial graduated to read directly to 0.001-inches shall be used. The presser foot shall be circular, with a diameter of 1.129 (± 0.001) inches and with moving parts weighted to apply a total load of 0.60 (± 0.03) pounds per square inch (psi) to the specimen. The anvil shall be not less than 1.129-inches in diameter. The presser foot and anvil surface shall be planned to within 0.001-inches and shall be parallel to each other to within 0.001-inches.

3/ Resilience is percentage retention of initial collapsing load after ten (10) collapses.

4/ Moisture resistance is percentage retention of initial dry collapsing load after one (1) hour immersion.

5/ Measured with a calibrated ruler/caliper.

6/ Thickness of test slab shall be 1/2-inch as stated in the respective ASTM method.

7/ Thickness of test sample used shall equal 12.7mm (1/2-inch) from test slabs or 6.0mm from actual cushioned midsoles. Actual cushioned midsoles shall be used for verification testing only.

However, all test reports used for conformance purposes and submitted to the Government shall use test slabs.

8/ Test conducted after 24 hours at room temperature with ASTM test slabs.

9/ Thickness of test sample used shall equal 12.7mm (1/2-inch) from test slabs or 19.0mm (3/4-inch) from actual cushioned midsoles. Actual cushioned midsoles shall be used for verification testing only. However, all test reports used for conformance purposes and submitted to the Government shall use test slabs.

10/ Method modified to include Texon board (2mm) glued onto the specimens and conducted at- 5°C. Samples shall be preconditioned for 2 hours at -5°C.

11/ Thickness of test sample used shall equal 6.3mm (1/4-inch) from test slabs or 6.0mm from actual cushioned midsoles. Actual cushioned midsoles shall be used for verification testing only.

However, all test reports used for conformance purposes and submitted to the Government shall use test slabs.

12/ Test conducted after 2 hours conditioning 13/ Test specimens shall be at least 1/4-inch thick, sampled material shall be plied up to reach the desired thickness. Support the sampled material on a firm, hard surface at least 1/2-inch from edge. Record initial hardness test at RT (reference ASTM D2240). Place sample in freezer at - 40°F (-40°C) for 2 hours. At 2 hours remove sample from freezer and record final hardness after 2 second delay.

4.4.3 End item visual examination. The end items shall be examined for the defects listed in Table XI below. The lot size shall be expressed in units of boots. The inspector shall check to see that cushion inserts are inserted in the boots. For the pairing examination, and when determining possible differences in outersole thickness, the pair shall be examined together.

During the inspection for the defects listed within the "End item visual defect table", the departures from specification requirements listed in the table shall be observed and recorded.

Presence of these departures shall not result in the rejection of the lot, but the plant quality assurance and Government personnel reserve the right to establish and impose lot rejection criteria when either the severity or the presence of these departures warrant. These additional rejection criteria may be invoked at any time during the life of the contract when the Government judges this action to be in their best interest. Defects of pairing shall be classified as a single defect.

NOTE: Appearance defects shall be scored only when the condition is plainly visible at a distance of 3-feet or more and it appreciably affects item appearance. Conditions classified as (*) conditions shall be scored as major defects when seriously affecting serviceability or appearance, and as a minor departure when slightly affecting serviceability or appearance.

TABLE XI. End item visual defects.

Examine

Defect

Classification Major Minor

Pairing

Not properly mated; i.e., not right and left of same size 101 Variation in color or appearance 102 Variation of more than 1/4-inch in height of pair 103 Box toe malformed 104 Difference in outersole thickness between left and right boots

- more than 3/32-inch

- more than 1/16-inch but not more than 3/32-inch

Cleanness Any non-removable spot, stain, or foreign matter affecting appearance

Color and Finish

Color not as specified

Design Not as specified 106 Construction and Workmanship (General)

Any cut, tear, hole, repair or damage * Any component or assembly omitted or misplaced, operation omitted, not properly performed.

Any component, assembly, or design present creating “hot spots”

Seams and Stitching (upper)

Open seam not repaired 108 Repair of open seam not as specified 203 NOTE: A seam shall be classified as open when one (1) or more stitches joining a seam are broken or when two (2) or more consecutive skipped or runoff stitches occur. On multiple stitched seams, a seam is considered open when either one (1) or both sides of the seam are open. When above conditions occur on the inside of the boot it shall be scored as a * defect.

Tight tension resulting in puckering or cutting of the leather * Loose tension resulting in a loosely secured seam * Stitching omitted where required * Gauge of stitching irregular * Thread ends not trimmed throughout the boot 204 Needle holes or needle chew *

Outersole and Heel

Thickness not as specified 109 Any malformation, wrong size used *

TABLE XI. End item visual defects. - Continued

Examine

Defect

Classification Major Minor

Eyelets/ Speedlaces

Number of eyelets/speedlaces not as specified in each row 110 Not the same number of eyelets/ speedlaces in each row 111 Eyelets/speedlaces not properly spaced within the row or misalignment between the rows to an extent interfering with proper lacing

Any eyelet/speedlace not securely clinched 205 Any eyelet/speedlace malformed or damaged 206

Marking and instruction tag

Missing, incomplete, incorrect, not applied in the specific manner, misplaced, illegible, or not specified size

Cushion insole (insert)

Missing, wrong size, or wrong side up 112

Lining Torn, loose or wrinkled 113* Upper Leather Not flesh side out 114

Leather deeply scuffed/damaged * Grub or tick damage, scratches, brands or boney leather * Fat wrinkles or veins 115 Thickness exceeds maximum or less than minimum specified 116

Gusset, tongue and collar leather

Flanky * Loose flesh, boney or boardy *

4.4.4 End item testing. The finished boot shall be tested for the characteristics listed in Table XII. All test results shall contain the individual values utilized in expressing the final results. The sample size for each test shall be three (3) boots. The number of determinations shall be as specified in the contract or solicitation. The lot will not be acceptable if one (1) or more samples fail any test.

TABLE XII. End item testing.

Characteristics Requirement paragraph Test Method Boot Design and Construction Height 3.6.1 Visual 1/ Weight 3.6.2 Visual 2/ Pull Tab Circumference 3.4.4 Visual 1/ End Item Requirements Slip Index (rough/ice) 3.5.3 SATRA TM144 3/ Boot Design and Construction Bond Strength Outersole to cushion midsole (requirement may be waived if outersole is bonded directly to upper)

3.8.1.1 4.5.1

Entire sole to upper 3.8.1.2 4.5.2 Entire sole to upper (alternate) 3.8.1.2.1 4.5.3 Leakage 3.8.2 4.5.4 Thermal insulation 3.8.3 4.5.5 4/ Flame resistance 3.8.4 4.5.6.1 Upper heat resistance 3.8.5 4.5.6.2 5/ Sole heat resistance 3.8.6 4.5.6.3

1/ Measured with a calibrated ruler/caliper 2/ Measured with a calibrated scale 3/ Test in accordance with frosted ice method, flat mode. Sole to be pre-conditioned with 40 grit sand paper for six (6) cycles. Test conducted on end item.

4/ PDM testing only. The Government reserves right to draw samples to test for conformance to this specification at any time.

5/ For the thermal conductive heat resistance tests, the sample size shall be three (3) individual swatch packages measuring 4-inches by 6-inches. The swatch construction (layering) shall be identical to the assembly found in the quarter side panel area of the upper of a fully constructed boot and shall not have any labeling or markings attached. The assemblies shall be sewn along the outer perimeter and shall be submitted in an envelope which indicates the proper identification. The swatch packages shall be taken from the same lot of the product demonstration model(s), first article, or production lot(s).

4.5 Methods of inspection.

4.5.1 Bond strength test of outersole to cushion midsole.

4.5.1.1 Specimen. The specimen shall be a completed boot which has aged at least two (2) days. The outersole shall be separated from the cushion-midsole, for a distance of approximately 2-1/2-inches from the toe end of the specimen. The separation may be aided by any suitable device or machine capable of withstanding the amount of force necessary to accomplish separation. After separation, the toe cap of the boot shall be crushed to facilitate mounting of the specimen in the tester. In event that the point of separation at the 2-1/2-inch point is not between the outersole and cushion midsole, that portion of the outersole remaining adhered to the cushion midsole shall be separated manually (with the aid of a knife or other instrument), so as to show separation between the outersole and cushion midsole.

4.5.1.2 Apparatus. A power-driven adhesion machine, or an approved testing device of equal performance, shall be used. The rate of travel of the power-actuated grip shall be 2-inches per minute. The machine shall be operated with a device for maintaining maximum load indication.

4.5.1.3 Procedure. The separate toe ends of the specimen shall be clamped in the jaws of the machine. The specimen shall extend outward at right angles to the direction of the application load. The machine shall be started, and the surface being tested shall be pulled apart to a distance of not more than 4-1/2-inches from the toe. The maximum value attained during separation shall be taken as the bond strength.

4.5.2 Bond strength test of entire soling system to upper.

4.5.2.1 Specimen. The specimen shall be a completed boot which has aged at least 2 days.

The specimen shall be legibly marked on each side at two points (2-inches and 4-inches from the tip of the toe). The entire soling system shall then be separated from the upper to the 2-inch mark. The separation may be aided by any suitable device or machine capable of withstanding the amount of force necessary to accomplish separation. After separation to the two inch mark is achieved, the toe cap of the boot shall be crushed to facilitate mounting of the specimen in the tester. In event that the point of separation at the 2-inch mark is not between the upper and the soling system, that portion of the soling system remaining adhered to the upper shall be separated manually (with the aid of a knife or other instrument), so as to show separation between leather and soling system. Care should be taken in order to be sure that the leather is not cut.

4.5.2.2 Apparatus and procedure. The apparatus for measuring soling system/upper separation shall be as described in test method ASTM D2208. The separated and crushed toe portion of the boot shall be gripped by one clamp in a manner such that the minimum effective jaw surface area applied shall be 1-inch by 1-inch. The jaw surface shall be centered approximately 1/2-inch to 1-inch from the tip of the toe. The other jaw surface shall hold the overlay portion of the separated upper, and it shall not be less than 1-inch by 2-inches, with the long dimensions perpendicular to the pull of the machine. The machine shall be set in operation and the separation continued at a speed of 10-inches per minute until the outersole is separated from the upper to a point past the mark 4-inches from the tip. The maximum value attained during separation shall be taken as the bond strength.

4.5.3 Bond strength test of entire soling system to upper (alternate).

4.5.3.1 Specimen. The specimen shall be a completed boot which has aged at least 2 days.

Each boot shall be preconditioned by flexing in accordance with SATRA TM 77, dry with a foot form of steel shot for 100,000 flexes.

4.5.3.2 Apparatus and procedure. The apparatus for preconditioning the boot shall be the SATRA TM 184 Whole Shoe Flexing Apparatus, or equal. The apparatus and procedure for measuring soling system/upper separation shall be as described in SATRA TM 411.

4.5.4 Boot leakage test. The boot leakage test shall be designed to indicate leakage by SATRA TM77 (modified as indicated below) while the boot is submerged. The minimum standard for passing this test is 100,000 flexes. Each boot shall be preconditioned by flexing in accordance with SATRA TM 77, dry with a foot form of steel shot for 100,000 flexes.

4.5.4.1 Apparatus. SATRA TM 184 Whole Shoe Flexing Apparatus or equal shall be modified to allow the end item to be submerged to the depth of the mid-point between the third and fourth eyelet in accordance with NFPA Standard 1971. The mechanism for flexing on any other apparatus shall be the same as the SATRA TM 184. The sides of the apparatus must be raised to alleviate splashing on the mechanism for flexing.

4.5.4.2 Procedure. Testing shall be in accordance with SATRA TM 77 at 140 (±10) flexes/minute and 35 degrees for each flex cycle. A modified SATRA TM 184 whole boot flex apparatus or equal must be used so that the water depth required can be achieved. The top of each item must be sealed appropriately so that the water splashing from the test does not enter through the top of the boot. Absorbent blotting paper will be “balled up” and placed within the boot upper so that any water ingress through the top or upper can be determined. A change in the color between the top and the bottom sections of the absorbent blotting paper will indicate water ingress. The steel shot foot-form shall be removed for testing in water. The end item shall be checked at 100,000 cycles for leakage, as indicated by a color change in the absorbent blotting paper within the boot.

4.5.4.3 Method of inspection. End items will be evaluated in accordance with SATRA TM77, by checking for a change in color of the absorbent blotting paper that is “balled up” and placed within the boot upper. If water enters the top of the boot during the test, new absorbent blotting paper shall be inserted for the remainder of the test, unless the water has leaked to below the fourth eyelet.

If water has definitely leaked through the top of the boot by splashing and reached to below the fourth eyelet, then the whole boot must be dried and the absorbent blotting paper replaced before the test is resumed. Water ingress into the boot by way of wicking up the boot upper (outside) and down into the boot lining (inside) will not be considered an item failure. If it cannot be determined if the water has entered through the top or upper of the boot, a new boot shall be requested and subjected to the test.

4.5.5 Thermal insulation.

4.5.5.1 Apparatus. Since there is no ASTM test method to test boots, total thermal insulation of boots is determined using an in-house test methodology, which follows procedures similar to the ASTM F1291 for thermal manikin. The boots encase the 9-zone thermal sweating foot.

Tests are conducted in a controlled environmental chamber. Data is collected for thirty minutes of steady state conditions.

The thermal foot provides measurements for segments as shown below.

4.5.5.2 Procedure. The footwear shall be tested in conjunction with the US Army Standard Issue Boot Sock (CR-PD-03-18). Fiber content of the sock shall be a minimum of 10 percent nylon, minimum of 5 percent spandex/nylon, and the remaining fiber shall be cotton. The sock shall be placed over the thermal foot, and the footwear shall be secured over the sock.

The test conditions shall be as follow:

Ambient Temperature: 5.0oC (41.0oF) Foot Temperature: 35.0oC (95.0oF) Wind Speed: 0.9 mph (0.4 m/s)

4.5.5.3 Method of inspection. Thermal resistance Rt (m2*oK/Watt) is a quantity used to determine the insulation value of items. It is a measure of the total resistance to dry heat loss measured on a thermal foot to a relatively cool environment. Clo is one of the most widely used units in the clothing industry. Clo = 6.45*Rt or 1 Clo = 0.155 m2K/Watt. Total Clo refers to the weighted average of all segments of the thermal foot. The toe region consists of segments 6 and

7. The heel region consists of segment 9. The sole region consists of segment 8.

( ) /= −t s aR T T A H where:

Rt = total thermal resistance (insulation) of the boot and surface air layer (°C·m2/W), A = surface area of the thermal foot (m2), Ts = temperature at the thermal foot surface (°C), Ta = temperature in the air flowing over the boot (°C), and H = power required to heat thermal foot (W).

Ideally, three (3) separate samples of the test footwear system are evaluated and the average value is reported. For source selection purposes, one (1) footwear system shall be tested three

(3) times and the average value shall be reported. Rt values shall be converted to the more familiar Clo unit for source selection and procurement purposes. Clo values for the Toe, Heel, and Sole areas shall meet or exceed the minimum values listed in paragraph 3.8.3 to satisfy the thermal insulation standard.

4.5.6 Thermal protection. The boots shall be tested for flame resistance, upper heat resistance, and sole heat resistance as specified in paragraphs 3.8.4 thru 3.8.6.

4.5.6.1 Flame resistance. The boots shall meet the Flame Resistance Test Four requirements of NFPA 1971, Standard on Protective Ensemble for Structural Firefighting, 2007 Edition. The areas of the boot to be tested are in accordance with Figure 8.5.5.2 of NFPA 1971, 2007 edition;

in addition, a sixth area, the quarter side panels, shall also be tested. The requirement that the boot shall not melt or drip DOES NOT apply, although the boot shall not exhibit any burn-through (Reference: sections 7.10.2 and 8.5). The boot shall be considered to have failed the burn-through test when burn-through is observed through all layers of the quarter panel and lining components.

4.5.6.2 Upper heat resistance. The boots shall meet the Conductive Heat Resistance Test 1 requirements of NFPA 1971, 2007 edition. (Reference: sections 7.11.3 and 8.7).

4.5.6.3 Sole heat resistance. The boots shall meet the Conductive Heat Resistance Test 2 requirements of NFPA 1971, 2007 edition.