PD 02-04B 15 Nov 06 Boots Safety Flight Deck.pdf

INCH-POUND

NCTRF PD 02-04B

November 15, 2006

SUPERSEDING

NCTRF PD 02-04A

July 6, 2006

PURCHASE DESCRIPTION

BOOTS, SAFETY, FLIGHT DECK

1. SCOPE

1.1 Scope. This purchase description covers the requirements for commercial flight deck safety boots worn by the Department of the Navy personnel.

1.2. Classification. The boots shall be available in the whole and half sizes and widths listed below. All sizes shall be available in all widths, see 6.2.

a. Sizes: 3 through 16

b. Widths: N (B), R (D), W (EE), XW (EEE)

2. APPLICABLE DOCUMENTS

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

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 shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and AMSC supplement thereto, cited in the solicitation (see paragraph 6.2).

NCTRF CAGE CODE: 32263

COMMERCIAL ITEM DESCRIPTION

A-A-55093 - Laces, Nylon

DEPARTMENT OF DEFENSE SPECIFICATIONS

MIL-PRF-3122 - Leather, Cattlehide, for Footwear Uppers and Gussets, Chrome Tanned, Fat Liquored

(Copies of these documents are available online at http://assist.daps.dla.mil/quicksearch/ or from the Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.)

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.

U. S. ARMY NATICK RESEARCH AND DEVELOPMENT CENTER, NATICK, MA 01760

2-1-1635 - Speed Lace Assembly

U. S. NAVY CLOTHING AND TEXTILE RESEARCH FACILITY, NATICK, MA 01760

2-NCTRF-04 – Boots, Safety, Flight Deck

(Copies of these drawings are available from the Defense Supply Center-Philadelphia, 700 Robbins Avenue, Philadelphia, PA 19111-5096, Attn: DSCP-CBTC or procuring activity, see 6.3.)

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.

AATCC

AATCC Evaluation Procedure 8 (2002) AATCC 9-Step Chromatic Transference Scale AATCC Evaluation Procedure 1 (2002) Gray Scale for Color Change Chromatic Transference AATCC 127 - Water Resistance: Hydrostatic Pressure Test

(Copies of these documents are available online at http://www.aatcc.org or AATCC National Headquarters, P.O. Box 12215, Research Triangle Park, NC 27709-2215.)

ASTM INTERNATIONAL

ASTM D297 - Standard Test Methods for Rubber Products – Chemical Analysis http://assist.daps.dla.mil/quicksearch/

ASTM D412 - Standard Test Methods for Vulcanized Rubber and Thermoplastic Rubbers 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 D751 - Standard Test Method for Coated Fabrics ASTM D816 - Standard Test Methods for Rubber Cements ASTM D1052 - Standard Test Method for Measuring Rubber Deterioration-Cut Growth Using Ross Flexing Apparatus ASTM D1630 - Standard Test Method for Rubber Property-Abrasion Resistance (Footwear Abrader) ASTM D2240 - Standard Test Method for Rubber Property—Durometer Hardness ASTM D2256 - Standard Test Method for Tensile Properties of Yarns by the Single-Standard Method 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 D3787 - Standard Test Method for Bursting Strength of Textiles – Constant-Rate-of- Traverse (CRT) Ball Burst Method ASTM D3776 - Standard Test Methods for Mass per United Area (Weight) of Fabric ASTM D3886 - Standard Test Method for Abrasion Resistance of Textile Fabrics (Inflated Diaphragm Method) ASTM D4786 - Standard Test Method for Stitch Tear Strength, Single Hole ASTM D4966 - Standard Test Method for Abrasion Resistance of Textile Fabrics (Martindale Abrasion Tester Method) ASTM D5052 - Standard Test Method for Moisture Vapor Transmission Rate ASTM E18 - Standard Test Methods for Rockwell Hardness and Rockwell Superficial

Hardness of Metallic Materials ASTM E96 - Standard Test Method for Water Vapor Transmission of Materials ASTM F903 - Standard Test Method for Resistance of Materials Used in Protective Clothing of Penetration of Liquids ASTM F392 - Standard Test Method for Flex Durability of Flexible Barrier Materials ASTM F1614 - Standard Test Method for Shock Attenuating Properties of Material Systems for

Athletic Footwear ASTM F2412-05 - Test Methods for Foot Protection ASTM F2413-05 - Performance Requirements for Foot Protection

(Copies of these documents are available online at http:// www.astm.org or ASTM International, 100 Bar Harbor Drive, West Conshohocken, PA 19428-2959.)

AMERICAN SOCIETY FOR QUALITY

http://www.astm.org/

ASQC Z1.4 - Sampling Procedures and Tables for Inspection by Attributes

(Copies of these documents are available online at http://www.asq.org or American Society for Quality, P. O. Box 3005, 600 North Plankinton Avenue, Milwaukee, WI 53203).

SATRA TECHNOLOGY CENTER

MTM-2 - Tensile Strength of Fiberboards and Sheet Insoling Materials MTM-3 - Flexing Endurance Test for Fiberboards MTM-14 - Scuff Resistance of Fiberboards MTM 31 - Abrasion Resistance – Martindale Method MTM 64 – Compression Set MTM-77 - Whole Shoe Flex Test, Modified (in water) MTM-80 - Transverse or Z Direction Strength of Fiberboards MTM-98 - Determination of Dimensional Change of Insole Boards Due to Change in Relative Humidity MTM-101 - Peel Strength of Fiberboards MTM-233 - Non-marking (rubber outsole) STM-184 - Whole Shoe Flex Apparatus (High Water)

(Copies of these documents are available online at http:// www.satra.co.uk or from SATRA Technology Center, SATRA House; Rockingham Road, Kettering, Northamptonshire, NN 16 9 JH, United Kingdom.)

2.4 Order of precedence. 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 First article. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.3.

3.2 Materials and components. Unless otherwise specified, the materials and components used to manufacture the boots shall conform to the applicable specification and standards required herein.

3.2.1 Recycled, recovered, or environmentally preferable materials. Where applicable, specifications 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.

3.2.2 Upper leather. The leather shall be full grain drum dyed black with color penetrating throughout the thickness of the hide so that the chrome tannage is not visible. The vamps, quarters and backstay/pull tab shall conform to MIL-PRF-3122J, Type I, Treatment A and Treatment B. The eyelet stays, top band, quarter side panels and gusset/tongue shall conform to IL-PRF-3122, Type II, Treatment A and Treatment B. The gusset/tongue, quarter side panel and top band leather shall meet component requirements for Moisture Vapor Transmission Rate (MVTR). At least 80% tested shall have a MVTR value of not less than 500 grams/square meter/24hours. The thickness shall be as specified in Table VIII. As an alternate, the eyelet stays may conform to Type I, Treatment A and Treatment B of MIL-PRF-3122.

3.2.3 Insoles. The insole shall meet the requirements specified in Table I.

TABLE I - Insole performance requirements

Characteristics Physical Requirements Thickness:

Welt 0.095 +/- 0.005 inch Injection Molded 0.145 +/- 0.021 inch Fungal resistance Level 10 Wet Tensile 70 kgf/cm2 min.

Flexing Index 3.7 (5000 cycles) min.

Abrasion Resistance:

Cellulose board 50mm3 max.

Non-Woven board 25,600 revs dry/6400 wet (min.)

Transverse Tensile-Dry 8 kgf/cm2 min.

Dimensional Stability 0.7% max.

Peel Strength 0.5 kgf/cm2 min.

3.2.4 Bootie lining. The bootie lining shall be constructed from a three-layer material consisting of a textile face cloth, a waterproof film, and a tricot knit. The textile face cloth (see 3.2.4.a) shall be laminated to one side of the waterproof film (see 3.2.4.b) and the tricot knit cloth (see 3.2.4.c) shall be laminated to the other side of the waterproof film using an adhesive (see 3.2.4.d). The finished cloth shall conform to the requirements specified in Table III.

a. Textile face cloth. The textile face shall meet the performance criteria listed in Table II. The color of the cloth shall be gray herringbone.

TABLE II – Textile face cloth requirements.

Characteristics Requirements Martindale Abrasion, Dry

Pass, no holes 153,600 revs/ 9,600 cycles (min)

Bursting Strength 125 (min)

b. Waterproof film. The waterproof film shall be polytetrafluorethylene, microporous.

c. Tricot knit. The tricot knit cloth shall be nylon. The weight shall be a minimum of

1.0 (±0.10) ounces per square yard. The color shall be natural.

d. Adhesive. The adhesive for laminating the layers together shall be such that the laminate cloth will meet the requirements of this specification. The adhesive shall have no adverse health hazard when used as intended.

TABLE III – Three-layer laminated cloth performance requirements

Characteristics Requirements Hydrostatic Resistance (psi):

Liner cloth (initial) 75 (min) At Seam 75 (min) After Synthetic Perspiration 75 (min) After Diesel Fuel Oil 75 (min) Water Permeability/Resistance:

Liner cloth (initial) No leakage At Seam No leakage After Synthetic Perspiration No leakage After Diesel Fuel Oil No leakage Abrasive Durability (cycles to leak), Back/Leather side 600 cycles, No leakage Moisture Vapor Transmission Rate (g/m2/24 hrs):

B method 640 (min) BW method 4,000 (min) Flex Durability:

Gelbo (cycles to leak) 3,000 cycles, No leakage Wet (hours to leak) 24 (min) Wet (hours to delamination) 96 (min)

3.2.5 Leather pull-tab. The boot shall contain a one-piece backstay and pull tab grain side out with a pull-tab circumference of 3-1/2 to 3-3/4 inches when completed.

3.2.6 Safety box toe. Commercial materials used for the toe cushion shall effectively cushion and mask the breastline of the of the steel box toe.

3.2.6.1 Safety box toe cushion. The material used to cushion the box toe and mask the breastline shall be of ¼ inch open cell polyurethane. The cushion shall be cut large enough to extend or no more than ½ inch rearward of the box toe breast line.

3.2.7 Counters. The counter shall be properly molded, fit the counter pocket and provide structural support to the heel area of the boot.

3.2.8 Shank. A commercial steel or fiberglass shall be used.

3.2.9 Eyelets. There shall be four or five pair of eyelets evenly spaced and aligned below the comfort notch. The eyelets shall be brass, with a coated nylon black, gloss finish, and size AA.

3.2.10 Speed lace assembly. The speed lace assembly shall be in accordance with Drawing 2-1- 1635. There shall be four or five pair of pairs of speed loops evenly spaced and aligned positioned above the comfort notch. The speed loop shall be brass and coated nylon black, gloss finish.

3.2.11 Rocker heel cushion midsole. The rocker heel cushion midsole shall be black polyether polyurethane, provide the necessary stability, durability, and seek to increase the overall performance of the item by optimizing the performance called out in this purchase description (i.e. Shock Attenuation) and meet the requirements specified in Tables V.

TABLE V - Cushioned midsole performance requirements.

Characteristics Minimum Maximum Density (gm/cc) 0.40 0.60 Hardness (shore A) 50 75 Tensile strength (kgf/cm sq) 25 - Elongation (%) 250 - Tear strength, (kg/cm) 3.7 - Volume swell (%) w/ASTM IRM 903 Oil (at 24 hrs)

- 10, at room temperature using ½” test slabs

Compression Set % - 20 Ross flex (1 x 6 inch) at - 5oC (negative 5 degrees C)

- 900% @ 150,000 cycles

3.2.11.1 Cushioned Midsole. The cushioned midsole shall be made from a polyether polyurethane material and meet the requirements in Table V.

3.2.12 Rubber compounds requirements. The requirements for the solid midsole and outsole shall be as specified in Table VI.

TABLE VI - Rubber compound requirements.

Characteristics Outsole Solid midsole NBS abrasion 125 min. N/A Hardness (shore A) 50-60 A N/A Stitch Tear (dry) 180 lb. min. 180 lb. min.

Stitch Tear (Fuel B) 50 lb. min. 50 lb. min.

Die C tear strength 200 lb. min. N/A

Ross flex, IRM 903 Oil 500% max. @ 50,000 flexes at room temperature, with one drop every 6000 flexes

N/A

Volume swell, Fuel B (@ 46 hrs) 1/

50% max. at room temperature

30% max.

Non-marking Pass N/A Tensile 1,400 lb. Min N/A Elongation 400% min. N/A

1/ Volume swell testing is performed on ¼ inch slabs.

3.2.12.1 Solid midsole. The rubber midsole for use with welt construction shall be 4 irons (- ½, +1 iron), black in color, oil resistant and meet the requirements in Table VI.

3.2.12.2 Outersole. The outersole design shall be the standard black Vibram Chevron 1307 design in accordance with drawing 2-NCTRF-04 and meet the requirements of Table VI. The color of the Vibram identification plug shall be black.

3.2.13. Bottom filler. When the boots are welt constructed, a commercial bottom filler shall be used.

3.2.14 Thread, upper fitting. The various commercial sewing threads used in the fitting operation and during the construction of the boots shall be black. The color of the bobbin or looper thread may be a natural or black. The upper fitting bobbin thread may match the color of the boot lining. The physical properties of each thread (size, ply, twist breaking strength, elongation) shall be selected to provide reliable boot performance for the life of the boots.

3.2.15 Last. The boots shall be made over a commerical last.

3.2.16 Laces. The laces shall conform to Type III, class 1 of A-A-55093. The color of the laces shall be black. The length of the laces shall be a minimum of 72 inches for sizes 3 through 6-1/2, 87 inches for sizes 7 through 11, and 97 inches for sizes 11-1/2 through 16.

3.2.17. Labels and markings.

3.2.17.1 Marking identification. The boots shall be permanently marked with the Navy Certification Program certification number, size, width, and NSN on its inside. All marking information shall be legible and last the life of the boot. The markings shall not cause any reduction in footwear functionality and durability.

3.2.17.2 ASTM identification label. The safety boots shall contain an ASTM label to show that it conforms to Class 75 safety footwear requirements for toe impact and compression resistance.

The label shall conform to the requirements specified in ASTM F2413-05.

3.2.18 Removable cushion insert. The removable cushion insert shall be a low-density polyurethane heel cup made of a polyurethane system, medium black or tan in color, and molded to a textile face cloth. The textile face cloth shall meet the requirements in Table II. The total thickness of the insert shall be a minimum of 0.100 inch forward of the instep, and a minimum of

0.220 inches elsewhere. The insert shall meet the requirements in Table VII.

Table VII. Removable Cushion Insert Requirements

Characteristics Physical Requirements Test Method Density 16-20 lb/cu. ft. ASTM D-3574

Foam Hardness 55-65 Shore 00 ASTM D-2240 Tensile strength >80 PSI ASTM D-3574

Compression set @ 25% <5% ASTM D-3574 Compression set @ 50% <5%

ASTM D-3574

3.3 Design. The 8-1/2 inch safety boot shall have a toe up lace closure system with a “V” notch, be waterproof, breathable, mildew-resistant, line, have a replaceable rubber outsole, a cushion midsole and shall be in accordance with drawing 2-NCTRF-04.

3.3.1 Boot Height. The height of the finished boots, measured upward on the outside from the top of the welt line at the breast of heel area to the top of the boot, shall be 8-1/2 (+/- 1/2) inches on size l0R and shall graduate up and down between sizes and widths (see drawing 2-NCTRF- 04).

3.3.2 Comfort Top Band. The comfort top band shall have a length equal to the circumference of the boot top, exclusive of the gusset/tongue, and a width of ¾ (+/- 1/8) inch. As an alternate, the top band may be stitched grain-side-out both inside and outside the boot.

3.4 Construction.

3.4.1 Cutting uppers. The leather shall conform to the thickness specified in Table VIII (see 3.2.2.). With the exception of the eyelet stays, none of the upper parts shall be split or shaved.

Vamps shall be cut from the bend area of the side leather.

TABLE VIII - Required thickness of leather uppers (ounces)

Part Minimum Maximum Vamp 5 6

Foxing 4-1/2 6 Eyelet stay 2-1/2 3-1/2 Gusset/tongue Quarter Side Panel

2-1/2 2-1/2

Comfort top band 2-1/2 3-1/2 Backstay/pull tab 4-1/2 6

3.4.2 Skiving. Skiving of upper leather parts shall be permitted.

3.4.3 Toe reinforcing stitching. For welt construction, the three-piece outsole and welt shall be stitched together and the stitching shall extend around the toe area.

3.5 End item boot performance requirements.

3.5.1 Boot finishing. Top finish, if used, shall not unduly restrict the breathabililty of the leather of the finished boot.

3.5.2 Bond strength.

a. Solid midsole to cushion midsole bond strength. The solid rubber midsole to cushion midsole bond strength shall be not less than 100 pounds.

b. Outersole to cushion midsole bond strength. The outersole to cushion midsole strength shall not be less than 100 pounds.

3.5.3 Shock Attenuation. The end item shock attenuation (Peak g) shall not exceed 18.00 in the fore foot or 14.00 in the rear foot when tested with the removeable insert. The boot shall be tested in accordance with 4.3.1.2.2.

3.5.4 Whole boot Moisture Vapor Transmission Rate (MVTR). The whole boot breathability shall not be less than 3.5 grams/hour.

3.5.5 Safety Toe. The finished boot shall meet the requirements of ASTM F2413-05, Class I75/C75 for impact resistance and compression resistance.

3.5.6 Leakage. The finished boots shall show no leakage. The boot shall be tested in accordance with section 4.4.4.2.

3.5.7 Liquid Penetration Resistance. The finished boots shall not permit any penetration of surrogate gasoline fuel C, as defined in ASTM D471, a 50/50 percent by volume of the toluene and iso-octane, for at least 1 hour.

3.6 Workmanship. Each finished pair of boots shall be uniform in appearance, quality and free from irregularities or defects that could adversely affect performance or durability when tested as specified in Section 4.

4. VERIFICATION

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

a. First article inspection (see 4.2).

b. Conformance inspection (see 4.3).

4.2 First article inspection. When a first article is required (see 3.1 and 6.2), it shall be examined for the requirements in 4.4.1, 4.4.2, 4.4.3, and 4.4.4. First article quantities shall be specified in the contract.

4.3 Conformance inspection. Conformance testing shall include the examinations of 4.3.1.1 and

4.3.1.2. Each boot shall be examined for compliance with the requirements specified in 3.2.2 through 3.5. The element of inspection shall encompass all visual examinations and dimensional measurements. Unless otherwise specified, sampling for inspections shall be performed as specified and the sample unit shall be one pair of boots.

Lot size Sample unit up to 800 pairs 2 each 801 to 22,000 pairs 3 each 22,001 pairs and over 5 each

4.4 Methods of Inspection.

4.4.1 Component and material inspection. Components and materials shall be inspected in accordance with the characteristics of Table IX.

Table IX - Component tests

Material Characteristic Paragraphs Test Method

All, MIL-PRF-3122 3.2.2 All, MIL-PRF-3122J Upper leather Thickness 3.2.2 & 3.4.1 ASTM D1777; 4.4.1.1 Martindale abrasion, dry 3.2.4.a; 3.4.18 ASTM D4966; 4.4.1.2 Textile face cloth Bursting strength 3.2.4.a; 3.4.18 ASTM D3787

Tricot knit Weight 3.2.4.c ASTM D3776, Option C Thickness:

Welt/stitch down 3.2.3 ASTM D1777; 4.4.1.1 Injection molded 3.2.3 ASTM D1777 ; 4.4.1.1 Fungal resistance 3.2.3 ASTM D3273 Wet tensile 3.2.3 SATRA MTM-2 Flexing index 3.2.3 SATRA MTM-3 Abrasion resistance Cellulose board 3.2.3 SATRA MTM-14

Insole

Nonwoven board 3.2.3 SATRA MTM-31

Transverse tensile-dry 3.2.3 SATRA MTM-80 Dimensional stability 3.2.3 SATRA MTM-98 Peel strength 3.2.3 SATRA MTM-101 Hydrostatic resistance:

Liner cloth (initial) 3.2.4 ASTM D751; 4.4.1.3.1.a At seam 3.2.4 ASTM D751; 4.4.1.3.1.b After synthetic perspiration

3.2.4 ASTM D751; 4.4.1.3.1.c

After diesel fuel oil 3.2.4 ASTM D751; 4.4.1.3.1.d Water permeability resistance:

Liner cloth (initial) 3.2.4 AATCC 127; 4.4.1.3.2.a At seam 3.2.4 AATCC 127; 4.4.1.3.2.b After synthetic perspiration

3.2.4 AATCC 127; 4.4.1.3.2.c

After diesel fuel oil 3.2.4 AATCC 127; 4.4.1.3.2.d Abrasive durability, back/leather side

3.2.4 ASTM D3886; AATCC

127; 4.4.1.3.3

Moisture vapor transmission rate:

B method 3.2.4 ASTM E96; 4.4.1.3.4.a BW method 3.2.4 ASTM E96; 4.4.1.3.4.b Flex durability: 3.2.4 Gelbo (cycles to leak) 3.2.4 ASTM D392; AATCC 127;

4.4.1.3.5.a Wet (hrs to leak) 3.2.4 ASTM F392; AATCC 127;

4.4.1.3.5.b

3-layer laminated cloth

Wet (hrs to delamination) 3.2.4 ASTM F392; AATCC 127;

4.4.1.3.5.c

Density 3.2.11 ASTM D297 Hardness (shore A) 3.2.11 ASTM D2240 Tensile strength 3.2.11 ASTM D3574 Elongation 3.2.11 ASTM D3574 Tear strength 3.2.11 ASTM D3574 Volume swell 3.2.11 ASTM D471 2/ Compression set 3.2.11 SATRA MTM 64

Rocker heel cushion midsole and Cushion midsole

Ross flex 3.2.11 ASTM D1052; 4.4.1.4 1/ NBS Abrasion Index 3.2.12 ASTM D1630; 4.4.1.5 Hardness (before aging) 3.2.12 ASTM D2240; 4.4.1.5 Stitch Tear (dry) 3.2.12 ASTM D4786; 4.4.1.5 Stitch Tear (Fuel B) 3.2.12 ASTM D4786; 4.4.1.5 Tear Strength , Die C 3.2.12 ASTM D624; 4.4.1.5 Ross Flex, IRM 903 Oil 3.2.12 ASTM D1052; 4.4.1.5 1/

Rubber compound for solid midsole and outersole

Volume swell 3.2.12 ASTM D471; 4.4.1.5 2/

Non-marking 3.2.12 SATRA MTM-223; 4.4.1.5 Tensile Strength 3.2.12 ASTM D412; 4.4.1.5 Elongation 3.2.12 ASTM D412; 4.4.1.5 Cut growth 3.2.12 ASTM D1052 ; 4.4.1.5 Density 3.2.18 ASTM D3574 Tensile strength 3.2.18 ASTM D3574 Compression set 3.2.18 ASTM D3574

Removable Cushion Insert

Compression set @ 77°F 3.2.18 ASTM D3574

1/ One drop every 6000 flexes

2/ At room temperature

4.4.1.1 Insole and counter supplemental test procedures for Thickness, ASTM D1777. 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 paned to within 0.001 inches and shall be parallel to each other to within 0.001 inches.

4.4.1.2 Textile face cloth supplemental test procedures for Abrasion, ASTM D4966. As described in the test method; Martindale Tester; Pressure applied: 12 kPa; Visually examine specimens after each 3200 cycles; Abradant changed after each 3200 cycles. Use Option 1 for evaluation; no hole appears.

4.4.1.3 Three–layer laminated cloth supplemental test procedures.

4.4.1.3.1 Hydrostatic Resistance, ASTM D751.

a. Liner cloth. Determine hydrostatic resistance of 5 samples in accordance with ASTM D751, Procedure A1 with the face (foot side) of the liner cloth in contact with the water.

b. At seam. Determine hydrostatic resistance of 5 samples containing sealed seams in accordance with ASTM D751 Procedure A1 with the face (foot side) of the liner cloth in contact with the water and the seam centrally located in the circular orifice.

c. After synthetic perspiration. Test 5 samples, 4 inch by 4 inch in dimension, cut from the laminate material and exposed to synthetic perspiration contamination. The synthetic perspiration shall be made up in a 500 ml glass beaker by combining 3.0 grams sodium chloride, 1.0-gram trypticase soy broth powder, 1.0-gram normal propyl propionate, and 0.5 grams of liquid lecithin. Add 500 ml of distilled water, add a magnetic stirring bar and cover beaker.

Place the beaker on a combination hot plate/magnetic stirring apparatus. While stirring, heat the solution to 50 degrees C until all ingredients are dissolved. Then, while stirring, cool solution to 35 degrees C. Contaminate prior to leak testing by dispensing 2 ml of perspiration solution on both sides of the sample. Dispense contaminate on to the center of a glass plate (4 in by 4 in. by

0.25 in thick.) Sample shall be placed face down on the plate and an additional contaminate dispensed on the backside. Place a second glass plate on the sample. Next, position a 4-pound weight on the center of the second glass plate. After 16 hours, remove the sample (do not rinse) and test immediately. Determine hydrostatic resistance in accordance with ASTM D751 Procedure A1 with the face (foot side) of the liner cloth in contact with the water.

d. After diesel fuel oil. Test 5 samples, 4 inch by 4 inch in dimension, cut from the laminate material and exposed to diesel fuel as follows: Contaminate prior to leak testing by dispensing 3 drops of diesel fuel onto both sides of the sample. Dispense contaminate on to the center of a glass plate (4 inch by 4 inch by 0.25 inch thick.) Sample shall be placed face down on the plate and an additional contaminate dispensed on the backside. Place a second glass plate on the sample. Next, position a 4-pound weight on the center of the second glass plate. After 16 hours, remove the sample (do not rinse) and test immediately. Determine hydrostatic resistance in accordance with ASTM D751 Procedure A1 with the face (foot side) of the liner cloth in contact with the water.

4.4.1.3.2 Water permeability resistance, AATCC 127.

a. Liner cloth (initial). Determine water resistance of 5 samples in accordance with AATCC 127 with face (foot side) towards water. Suter test conditions shall be 0.7 psi (50 cm), for 5 minutes. Any observed water droplets in test area constitutes a failure.

b. At seam. Determine water resistance of 5 samples containing sealed seams in accordance with AATCC 127 with the face (foot side) of the liner cloth in contact with the water and the seam centrally located in the circular orifice. Determine water resistance of 5 samples in accordance with AATCC 127 with face (foot side) towards water. Suter test conditions shall be

0.7 psi (50 cm), for 5 minutes. Any observed water droplets in test area constitutes a failure.

c. After synthetic perspiration. Test 5 samples, 4 inch by 4 inch dimension, cut from the laminate material and exposed to synthetic perspiration. The synthetic perspiration shall be made up in a 500 ml glass beaker by combining 3.0 grams sodium chloride, 1.0-gram trypticase soy broth powder, 1.0-gram normal propyl propionate, and 0.5 grams of liquid lecithin. Add 500 ml of distilled water, add a magnetic stirring bar and cover beaker. Place the beaker on a combination hot plate/ magnetic stirring apparatus. While stirring, heat the solution to 50 degrees C until all ingredients are dissolved. Then, while stirring, cool solution to 35 degrees C.

Contaminate prior to leak testing by dispensing 2 ml of perspiration solution on both sides of the sample. Dispense contaminate on to the center of a glass plate (4 in by 4 in. by 0.25 in thick.)

Sample shall be placed face down on the plate and an additional contaminate dispensed on the backside. Place a second glass plate on the sample. Next, position a 4-pound weight on the center of the second glass plate. After 16 hours, remove the sample (do not rinse) and test immediately. Determine water resistance in accordance with AATCC 127 with the face (foot side) of the liner cloth in contact with the water. Determine water resistance of 5 samples in accordance with AATCC 127 with face (foot side) towards water. Suter test conditions shall be

0.7 psi (50 cm), for 5 minutes. Any observed water droplets in test area constitutes a failure.

d. After diesel fuel oil. Test 5 samples, 4 inch by 4 inch in dimension, cut from the laminate material and exposed to diesel fuel as follows: Contaminate prior to leak testing by dispensing 3 drops of diesel fuel onto both sides of the sample. Dispense contaminate on to the center of a glass plate (4 in by 4 in. by 0.25 in thick.) Sample shall be placed face down on the plate and an additional contaminate dispensed on the backside. Place a second glass plate on the sample. Next, position a 4-pound weight on the center of the second glass plate. After 16 hours, remove the sample (do not rinse) and test immediately. Determine water resistance in accordance with AATCC 127 with the face (foot side) of the liner cloth in contact with the water. Determine water resistance of 5 samples in accordance with AATCC 127 with face/ foot side towards water.

Suter test conditions shall be 0.7 psi (50 cm), for 5 minutes. Any observed water droplets in test area constitutes a failure.

4.4.1.3.3 Abrasive durability (cyles to leak), back/leather side, ASTM D3886. Determine abrasion durability of the backside of 5 laminate samples in accordance with ASTM D3886.

Non-contact pin diaphragm approved for use to decrease variability. The test is to be run for the specified number of cycles prior to testing for leakage. Leakage shall be determined in accordance with AATCC 127. Determine water resistance of 5 samples in accordance with AATCC 127 with face (foot side) towards water. Suter test conditions shall be 0.7 psi (50 cm), for 5 minutes. Any observed water droplets in test area constitutes a failure.

4.4.1.3.4 Moisture vapor transmission rate, ASTM E96.

a. B method. Determine MVTR in accordance with ASTM E96 method B with the backside of the test cloth facing the water. The free stream air velocity shall be 550 (± 50) fpm as measured 2 inches above the specimen. The airflow shall be measured at least 2 inches from any other surface. The test shall be run for 24 hours and weight measurements shall be taken at only the start and completion of the test. At the start of the 24-hour test period, the air gap between the water surface and the specimen shall be 0.75 (± 0.06) inches.

b. BW durability. Determine MVTR in accordance with ASTM E96 method BW with the backside of the test cloth facing the water. The free stream air velocity shall be 550 (± 50) fpm as measured 2 inches above the specimen. The airflow shall be measured at least 2 inches from any other surface. The specimen shall be sealed to the cup in any manner that prevents wicking or leaking of water out of the cup. The test shall be run for 2 hours and weight measurements shall be taken at only, the start and completion of the test.

4.4.1.3.5 Flex durability, ASTM F392 and AATCC 127

a. Gelbo (cycles to leak). Test one sample, 8 inch by 12 inch, shall be conditioned and flexed in accordance with ASTM F392 except specimen shall not be aged, the short edges shall no be heat sealed or otherwise joined, and the specimen shall be flexed for the specified number of cycles. Two, 6 inch by 8 inch specimens shall be cut from the flexed sample and tested for leakage in accordance with AATCC 127. Determine water resistance of 5 samples in accordance with AATCC 127 with face/ foot side towards water. Suter test conditions shall be 0.7 psi (50 cm), for 5 minutes. Any observed water droplets in test area constitutes a failure.

b. Wet (hrs to leak). One sample, 14 inches by full width, shall be selected from a sample unit and tested for leakage after the required number of hours of continuous agitation.

The specimen shall be agitated using the “normal,” cycle in an automatic home laundering machine except that the washing machine shall be capable of continuous agitation. The water level shall be maintained at 16 (± 0.5) gallons, and the water temperature shall be 32 (± 9) degrees C. Additional fabric shall be added to the specimen to create a load weight of 2 (± 0.2) pounds. Upon completion of the continuous agitation the specimen is to be air dried and then tested for leakage in accordance with AATCC 127. Determine water resistance of 5 samples in accordance with AATCC 127 with face (foot side) towards water. Suter test conditions shall be

0.7 psi (50 cm), for 5 minutes. Any observed water droplets in test area constitutes a failure.

c. Wet (hrs to delamination). One sample, 14 inches by full width, shall be selected from a sample unit and tested for delamination after the required number of hours of continuous agitation. The specimen shall be agitated using the “normal,” cycle in an automatic home laundering machine except that the washing machine shall be capable of continuous agitation.

The water level shall be maintained at 16 (± 0.5) gallons, and the water temperature shall be 32 (± 9) degrees C. Additional fabric shall be added to the specimen to create a load weight of 2 (± 0.2) pounds. Upon completion of the continuous agitation the specimen is to be air dried and then tested for delamination in accordance with AATCC 127. Delamination is defined as any separation of layers larger than ½ inch or any visible movement when shearing the specimen.

4.4.1.4 Cushion midsole supplemental test procedures for Ross flex, ASTM D1052. Test method modified to include Texon glued onto the specimens and conducted at -5 degrees C.

4.4.1.5 Rubber compounds supplemental test procedures. The requirements for the rubber outersoles are based on the testing performed on 0.50 gauge inch test slabs (in accordance with ASTM procedures) and are not actual soles. There may be some deviation on actual outersoles or midsoles based on style thickness and curing parameters.

4.4.2 In-process examination. The defects found during in-process examination shall be classified in accordance with Tables X, XI, and XII. The lot size shall be expressed in units of upper assemblies prepared for lasting. The sample unit shall be one completely fabricated upper assembly prepared for lasting.

4.4.2.1 Pre-fitting examination of cut parts. The cut parts shall be examined for the defects listed in Table X before fitting. The lot size shall be expressed in units of cut parts. The sample unit shall be one cut part. Appearance defects shall be scored only when the condition is plainly visible at a distance of 3 feet.

Table X - Cut parts defects.

Examine Defect Classification Major Minor Upper leather Not correct or full grain 101 Leather deeply snuffed; i.e. fiber structure damaged

Grub or tick damage, deep scratches, brands or bony leather

Fat wrinkles or pronounced veins 104 Stretchy vamp 105 Thickness exceeding the maximum the minimum specified

Thickness less than the minimum specified.

Rough fiber on flesh side 202 Off-stretch cut 203 Slaughter cut or flesh cut 107 Grain surface embossed or printed 108 Quarter side panels Not as specified 109 Gusset-tongue and collar cushion leather

Flanky Loose flesh, boney, or boardy

4.4.2.3 In-process examination of uppers after all fitting. The upper assemblies shall be examined for the defects listed in Table XI. The lot shall be expressed in units of upper assemblies for lasting. The sample unit shall be one completely fabricated upper assembly prepared for lasting.

Table XI - Examination of uppers after all fitting

Classification Examine Defect Major Minor

Any component missing or not specified type 110 Any component misplaced or not affixed as specified

Any cut, tear, hole, repair, or factory damage 112 Back seam malformed 206 Thickness more than ½ ounce less than minimum specified

Thickness less than specified minimum but not exceeding ½ ounces less

Thickness more than maximum specified 208

Construction and workmanship

Off-stretch cut 209 Torn, loose or wrinkled 114 Lining Not properly mated with upper 115

4.4.3 End item visual and dimensional examination. The end items shall be examined for the visual and dimensional defects listed in Table XII. 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.

Table XII - End item visual and dimensional defects

Examine Defect Classification

Major Minor Not properly mated; i.e., not right and left of same size.

Variation in color, luster or appearance. 117 Variation of more than ¼ inch in height of pair.

Box toe crooked, long or short. 119

Pairing

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

Any non-removable spot, stain, or foreign matter.

Color not as specified. 121 Finish streaky, chipped, or flaky on upper. 215

Cleanness, Color and Finish

Any raw edges not stained to match upper leather.

Design Not as specified. 122 Any cut, tear, hole, repair or damage. 123 Any component or assembly omitted or misplaced, operation omitted, not properly performed.

Open seam not repaired. 125

NOTE: A seam shall be classified as open when one or more stitches joining a seam are broken or when two or more consecutive skipped or runoff stitches occur. On multiple stitched seams, a seam is considered open when either one or both sides of the seam are open.

Tight tension resulting in puckering or cutting of the leather.

Construction and Workmanship (general) Seams and stitching

Loose tension resulting in a loosely secured seam.

Stitching omitted where required. 128 Gage of stitching irregular for more than 2 inches.

Gage of stitching irregular for less than 2 inches.

Thread ends not trimmed throughout the boot.

Needle holes or needle chew. 130 One or more rows of defective stitching not repaired.

Repaired but first stitch more than ¼ inch from outersole junction.

Vamp stitching at outersole junction

Repaired with one stitch in lieu of two or more stitches.

Thickness not as specified. 132 Edge scouring is irregular, affecting appearance.

Outersole and heel

Any malformation 133 Number of eyelets/speed laces not as specified in each row.

Not same number of eyelets/speed laces in each row.

Eyelets/speed laces not properly spaced within the row or misalignment between the rows to an extent interfering with proper lacing.

Eyelet/speed laces

Any eyelet/speed lace not securely clinched. 137 Marking Omitted, incomplete, incorrect, not applied in the specific manner, misplaced, illegible, or not specified size.

Torn, loose or wrinkled. 138 Lining Not properly mated with upper. 222 ANSI label missing. 139 Labels Barcode omitted or not readable by scanner;

human-readable interpretation (HRI) omitted or illegible, bar-coded typed not as specified;

code density not as specified.

Laces Missing, wrong length, not as specified. 140 Cushion insole (insert) Missing, wrong size, or wrong side up. 141 Dimensional Examination Height of boot not as specified. 142

4.4.4 End Item Testing. The finished boot shall be tested for the characteristics listed in Table XIII. For all item tests, the sample size shall be five (5) boots. The lot will not be acceptable if one or more samples fail any test.

TABLE XIII – End item testing.

Characteristics Paragraph Test Method Bond strength, (midsole to cushion midsole)

3.5.2.a ASTM D816; 4.4.4.1

Bond strength, outsole to cushion midsole

3.5.2.b ASTM D816; 4.4.4.1

Shock attenuation 3.5.3 ASTM F1614 Whole boot MVTR test 3.5.4 4.4.4.3 Impact resistance test 3.5.5 ANSI Z41;4.4.4.2 Compression resistance test 3.5.5 ANSI Z41; 4.4.4.2 Boot leakage 3.5.6 SATRA STM 184, SATRA MTM 77; 4.4.4.2

Liquid penetration resistance 3.5.7 ASTM D471; ASTM

F903; 4.4.4.6

4.4.4.1 Bond strength. Bond strength tests of midsole to cushion midsole, and of outersole to cushion midsole for welt construction and of outersole to cushion midsole for injection-molded construction. The number of determinations per sample unit shall be one. The test results shall be reported as pass or fail.

a. Specimen. The specimen shall be a combined midsole-cushion/midsole-outsole unit, which has aged at least 2 days. The midsole shall be separated from the cushion-midsole, and the outersole separated from the cushion-midsole, for a distance of approximately 2-1/2 inches each from the toe end of the specimen. Separate units may be used for each of the two tests.

b. 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.

c. 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 (i.e. midsole to cushion midsole, or cushion midsole to outsole) shall be pulled apart to a distance of not more than 4.5 inches from the toe. Upon attaining that degree of separation, the load indicated on the machine shall be read and recorded. If the required load is achieved (at any time during the pull test) the test is deemed as passing.

4.4.4.2 Boot leakage test. The boot leakage test shall be designed to indicate leakage by using water as a liquid medium through the boot by means of a whole shoe flex test (in accordance with SATRA MTM 77, 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 MTM 77, DRY with a foot form of steel shot for 100,000 flexes. The number of determinations per sample unit shall be one. The test results shall be reported as pass or fail.

a. Apparatus. SATRA STM 184 whole shoe flexing apparatus or equal will be modified to allow the end item to be submerged to a depth of the mid-point between the third and fourth eyelet. The mechanism for flexing on any other apparatus must be exactly the same as the SATRA 184. The sides of the apparatus must be raised to alleviate splashing on the mechanism for flexing.

b. Procedure. Testing will be in accordance with SATRA MTM 77 at 140 (± 10) flexes/minute and 35 degrees C for each flex cycle. A modified SATRA STM 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.

c. Method of inspection. End items will be evaluated in accordance with IAW SATRA MTM 77, 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.

4.4.4.3 Whole boot breathability. The boot breathability test shall be designed to indicate the Moisture Vapor Transmission Rate (MVTR) through the boot by means of a difference in concentration of moisture vapor between the interior and the exterior environment. The number of determinations per sample unit shall be one. The test results shall be reported as pass or fail.

a. Apparatus. The external test environment control system shall be capable of maintaining 23o C (± 1) and 50% (± 2) relative humidity throughout the test duration. The weight scale shall be capable of determining weight of boots filled with water to an accuracy of (± 0.01) gram. The water holding bag shall be flexible so that it can be inserted into the boot and conform to the interior contours; it must be thin enough so that folds do not create air gaps; it must have much higher MVTR than the footwear product to be tested; and it must be waterproof so that only moisture vapor contacts the interior of the footwear product rather than liquid water.

The internal heater for the boot shall be capable of controlling the temperature of the liquid water uniformly in the boot to 35o C (± 1). The boot plug shall be impervious to both liquid water and water vapor.

b. Procedure. Place boot in test environment. Insert holding bag into boot opening and fill with water to a height of 12.5cm (5 inches) measured from inside sole. Insert water heater and seal opening with boot plug. Heat water in boot to 35o C. Weigh boot sample and record as Wi. Hold temperature in boot after weighing for a minimum of 6 hours. After 6 hours, reweigh boot sample. Record weight as Wf and test duration as Td. Compute whole boot MVTR in grams/hour from the equation below:

MVTR = Wi – Wf Td

c. Method of Inspection. Each boot shall be tested in accordance with the method described in 4.3.1.2.3 b. The average whole boot MVTR from the 3 boots tested shall be greater than 3.5 grams/hour to satisfy the breathability standard.

4.4.4.4 Impact and compression. The finished boots’ steel toe shall be tested as specified in ANSI Z41 for impact and compression resistance. Impact and compression resistance test. The number of determinations per sample unit shall be one. The test results shall be reported as pass or fail.

4.4.4.5 Shock attenuation test. The boots shall be tested for shock attention as measured in accordance with ASTM F1614. The test results shall be reported as pass or fail.

4.4.4.6 Liquid penetration resistance test.

a. Test specimens. Samples for conditioning shall be whole boots. The number of determinations per sample unit shall be one boot. Three specimens each shall be taken from the upper, upper seam area, and the vamp seam area. Specimens for testing shall be permitted to be the barrier layer only.

b. Procedure. Liquid penetration resistance testing shall be conducted in accordance with ASTM F903, using exposure Procedure C. The liquid used for the testing shall be surrogate gasoline fuel C as defined in ASTM D471 (a 50/50 percent volume of toluene and iso-octane.)

The normal outer surface shall of the material shall be exposed to the liquid as oriented in the boots. The results shall be reported as pass or fail for each specified.

5. PACKAGING

5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or order (see 6.2). When actual packaging of material is to be performed by DoD or in-house contractor personnel, these personnel need to contact the responsible packaging activity to ascertain packaging requirements. Packaging requirements are maintained by Inventory Control Point’s packaging activity 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 boots are intended for wear by military personnel of the Department of Navy on board ship.

6.2 Acquisition requirements. Acquisition documents should specify the following:

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

b. Issue of DoDISS to be cited in the solicitation, and if required, the specific issue of individual documents referenced (see 2.2.1, 2.2.2 and 2.3).

c. Type, size and quantity desired (see 1.2).

d. National stock number.

e. Whether first article inspection and conformance inspection are required (see 4.2 and 4.3).

f. Name and address of the first article inspection facility.

g. Packaging requirements (see 5.1).

6.3 Information requests. For access to information such as patterns, drawings, standard samples, etc. visit DSCP’s Warfighter website, http://warfighter.dla.mil. Choose Vendor Info > Specification/Pattern Request. Complete the request form, and then submit form.

6.4 Subject term (key word) listing.

Footwear Leather, black Liner Waterproof

Direct molded method Injection mold method http://warfighter.dla.mil/