1、 INCH-POUND MIL-DTL-32089 August 24, 2001 SUPERSEDING KK-L-201F May 31, 1968 MILITARY DETAILED SPECIFICATION LEATHER, CATTLEHIDE, LACE, AND CUT LACES This specification is approved for use by all Department and Agencies of the Department of Defense. 1. SCOPE This Military Detailed Specification cove
2、rs cut laces primarily intended for shoe laces, name tags, slings for parachutes, and splicing purposes. 1.2 CLASSIFICATION. The leather will be in the following types: Type I - Alum tanned rawhide Type II Alum and vegetable tanned, Indian tanned Type III Alum and vegetable tanned, latigo Type IV Ch
3、rome tanned Class 1 Sides Class 2 - Cut laces Class 3 - Backs Treatment A Mildew resistant treated. Treatment B - Not mildew treated. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Defense Supp
4、ly Center Philadelphia, Clothing and Textiles Directorate, Attn: DSCP-COC, bld 6-1-D, 700 Robbins Ave, Philadelphia, PA 19111-5096. AMSC N/A FSC 8330 and 8335 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3208922. APPLICABLE DOCUMENTS 2.1 G
5、eneral. 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 complet
6、eness of this list, document users are cautioned that they must meet all specified requirements documents cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 Non-Government publications. The following document(s) form a part of this document to the extent specified h
7、erein. Unless otherwise specified, the issues of the documents which are DoD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2)
8、. AMERICAN SOCIETY FOR TESTING AND MATERIALS D- 6075 Cracking Resistance of Leather D- 2209 Tensile Strength of Leather D- 3495 Hexane Extraction of Leather D- 2617 Total Ash in Leather D- 6076 Shrinkage temperature of leather D- 2807 Chromic Oxide Content by Perchloric Acid Oxidation Test D- 2810 p
9、H of Leather (Applications for copies should be addressed to American Society For Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428.) ANSI/ASQC Z1.4 (Applications for copies should be addressed to ANSI/ASQC American Society for Quality Control 611 East Winconsin Ave. , Milwau
10、kee WI 53202) (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.) 2.3 Order of Precedence. In the event of a conflict b
11、etween the text of this document and the references cited herein (except for related associated specifications or specification sheets), the text of this document takes precedence. Nothing in this document however, supersedes applicable laws and regulations unless a specific exemption has been obtai
12、ned. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3208933. REQUIREMENTS 3.1 Materials The lace leather and cut laces shall be full grain cattlehide. The flesh side of the leather shall be smooth and free of coarse loose flesh. 3.1.1 Class
13、1. Class 1 leather shall be furnished in the form of sides. 3.1.2 Class 2. Class 2 shall be furnished in the form of cut laces. The laces shall be cut from class 1 or class 3 leather. 3.1.3 Class 3. Class 3 leather shall be furnished in the form of backs. 3.2 Tannage. 3.2.1 Type I. Type I leather sh
14、all be tanned with aluminum salts. 3.2.2 Type II and III. Type II and III leather shall be tanned with aluminum salts and vegetable tanning materials. 3.2.3 Type IV. Type IV leather shall be chrome tanned. 3.3 Physical requirements. 3.3.1 Classes 1 and 3 3.3.1.1 Trim (form and area). The leather sha
15、ll be furnished in the form of sides or backs as required for the type specified. Class 1 leather shall be not less than 16 square feet in total area. Class 3 leather shall be not less than 12 square feet in total area. The area in terms of square feet shall be legibly marked in the butt area on the
16、 flesh side of the leather. 3.3.1.2 Thickness. The thickness of class 1 and class 3 leather shall be furnished in the following thicknesses as specified (see 6.2 and 6.3): 4, 5, 6, 7 and 8 ounces. A minus thickness tolerance of 50 percent shall be permitted. The thickness shall be expressed in terms
17、 of ounces. NOTE: 1 ounce = 1/64 inch 3.3.1.3 Color . The color of the class 1 and class 3 leather shall be as specified (see 6.2). 3.3.1.4 Cracking The leather shall not crack when tested as specified in 4.3. 3.3.1.5 Shrinkage temperature (type IV). The type IV shall not shrink at or below 97C when
18、 tested as specified in 4.3. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3208943.3.1.6 Elongation. Not less than 80 percent of the specimens tested shall have elongation values no greater than 20 percent at the loads indicated below for t
19、he specified thicknesses when tested as specified in 4.3. Thickness Loads (pounds) 4 45.0 5 60.0 6 70.0 7 80.0 8 95.0 3.3.1.7 Breaking force. Not less than 80 percent of the specimens tested shall have minimum breaking force values as indicated below for the specified thickness. Thickness Loads (pou
20、nds) 4 95.0 5 115.0 6 140.0 7 165.0 8 190.0 3.3.2 class 2. 3.3.2.1 Cutting. The cut laces shall be cut in the lengthwise direction of the side or back The cut laces shall be free of cuts, holes, scars, and grain dmage which adversely affects serviceability or appearance. The laces shall have clean c
21、ut square edges. 3.3.2.2 Color. The color of the laces shall be as specified (6.2). 3.3.2.3 Width, length and thickness. The laces shall be furnished in the width indicated below and as specified (see 6.2). the length and the thickness of the laces shall be as specified below and as required for the
22、 width specified. Width, inch Length, feet Thickness, ounces ( 1/64 inch) ( 1 inch) (+0.0 50 percent) 1/8 1/ 4 8 1/4 4 6 5/16 4 6 3/8 5 7 7/16 5 7 1/2 6 8 5/8 6 8 3/4 6 8 7/8 6 8 1 6 8 1/ Tolerance of plus 1/64 inch only. Provided by IHSNot for ResaleNo reproduction or networking permitted without l
23、icense from IHS-,-,-MIL-DTL-3208953.4. Fungicide. Unless otherwise specified (paragraph 6.2), one of the following leather fungicides is required. 3.4.1 2- (thiocyanomethylthio) Benzothiazole. The leather shall contain not less than 100ppm and not more than 400ppm of active ingredient 2- (thiocyanom
24、ethylthio) benzothiazole (TCMTB), (see paragraph 4.4.1). 3.4.2 Ortho- Phenyl Phenol. The leather shall not contain less than 540 ppm and not more than2580 ppm. (see paragraph 4.4.2) 3.4.3 Diiodomethyl para Tolysulfone . The leather shall contain not less than 300 ppm and not more than 2000 ppm. (see
25、 paragraph 4.4.3) 3.5 Chemical requirements 3.5.1 The leather shall conform to the chemical requirements of table I when tested as specified in 4.5. TABLE I Chemical requirements Characteristic Minimum Maximum Aluminum oxide, percent 1/ Type I 2.0 - Type II and III 1.0 - Total ash, percent 1/ Type I
26、, II, III - 15.0 Type IV - 8.0 Chloroform-soluble material, percent 1/ Type I, II, IV 20.0 30.0 Type III 12.0 22.0 Acidity (pH) Type I, II, III, IV 3.5 - 1/ Moisture free basis. 3.6 Workmanship. The finished leather shall conform to the quality established by this specification. The occurrence of de
27、fect shall not exceed the applicable acceptable levels. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3208964.0 VERIFICATION. 4.1 Classification of inspections. The inspection requirements specified herein are classified as follows: 4.1.1 C
28、ertificate of compliance. Where certificates of compliance are submitted, the government reserves the right to check test such items to determine the validity of the certification. 4.2 Conformance inspection. Sampling for inspection shall be in accordance with the provisions of ANSI/ASQC Z1.4, excep
29、t where otherwise indicated hereinafter. 4.2.1 Component and material inspection. In accordance with 4.1 above, components an material shall be tested in accordance with all the requirements of referenced specification, drawings, and standards unless otherwise excluded, amended, modified, or qualifi
30、ed in this specification or applicable purchase document. 4.2.2 Examination of the end item. The classification of defects found during the examination shall be in accordance with the lists shown in 4.2.2.1 and 4.2.2.2. The sample unit for these examinations shall be one side or back. The lot size s
31、hall be expressed in terms of one side or back. A sample size of 15 and a rejection number of 2 shall be applicable for thickness determinations on lots consisting of 51 or more units of product. Separate examinations shall be performed for visual and dimensional characteristics, but the same sample
32、 may be used for each examination. 4.2.2.1 Examination for visual characteristics. Examine Defect Material Not full grain cattlehide Trim Not sides or backs as required Color Unless otherwise specified, color not natural Quality of leather Burn mark on flesh side Flesh side not smooth or has areas o
33、f loose Flesh in excess of four square inches in total area. Any hole, deep cut, scratch, damaged grain hipmark, Rough shoulder, Stain, or other defects which individually or collectively impair the cutting value of more than 10 % of the total area of the back or sided. Raw streak NOTE: Light, well
34、healed scratches and grub holes, light fat wrinkles, and slight stains Shall not be classified as defects. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3208974.2.2.2 Examination for dimensional characteristics. Examine Defect Area (express
35、ed in Not as marked on leather Terms of square feet) Marking Omitted Thickness 1/ Not as specified 1/ Thickness shall be measured in accordance with ASTM-D-1814 4.3 End item testing. The methods of testing specified in ASTM wherever applicable and as listed in table IV, shall be followed. Sampling p
36、rocedure and location from which the sample unit is to be obtained shall be in accordance with ANSI/ASQC Z1.4. All test reports shall contain the individual values utilized in expressing the final result . The lot shall be rejected if any one of the following conditions exists: a. More than three te
37、st failures occur for breaking force or elongation. b. More than one test failure occurs for the remaining requirements applicable to the sample unit. c. Any composite fails to meet the specified requirement. TABLE V Tests Requirement Applicable to Requirement Test Sample Composite Characteristic pa
38、ragraph method unit sample Material 3.1 1/ _ Tannage 3.2 1/ _ Breaking force 3.3.4 ASTM-D-2209 X Elongation 3.3.5 ASTM-D-2209 X Cracking 3.3.6 ASTM-D-6075 X Shrinkage temperature 3.3.1.5 ASTM-D-6076 X Chloroform-soluble material 3.4.1 ASTM-D-3495 _ X Water-soluble material 3.4.1 ASTM-D-3495 _ X Prov
39、ided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-320898TABLE V Tests (Cont) Requirement Applicable to Requirement Test Sample Composite Characteristic paragraph method unit sample Total ash 3.4.1 ASTM-D-2617 _ X PH value 3.4.1 ASTM-D-2810 _ X Fung
40、icide 3.4. para 4.4 - X 1/ Unless otherwise specified, a certificate of compliance is required and will be acceptable for the stated requirement. 4.3.2 Cracking. The leather shall be tested for cracking in accordance with ASTM-D-6075. The diameters of the mandrels shall be 1/8 inch. 4.4 Fungicide 4.
41、4.1 TCMTB. Testing to determine the concentration of Busan 30 L in the leather shall be conducted by using Buckman Laboratories standard test method for 2- (Thiocyanomethylthio) Benzothiazole Analysis of Leather by HPLC. This method may be obtained by contacting Buckman Laboratories at 1256 North Mc
42、Lean Blvd., Memphis, TN 38108 (800) 282-5625. 4.4.2 Ortho-phenyl phenol. Testing to determine chemical concentration in leather shall be conducted in accordance with Test I, Type I of the MIL-L-8067 specification. 4.4.3 Diiodomethyl para Tolysulfone. The chemical concentration in the leather shall be conducted using the High Pressure Liquid Chromatography (HPLC) test me
