1、INCH-POUND MIL-DTL-3207 1 July 28, 2000 SUPERSEDING April 1, 1970 KK-L-291G DETAIL SPECIFICATION SHEET LEATHER, CATTLEHIDE, UPHOLSTERY This specification is approved for use by all Department and Agencies of the Department of Defense. 1. SCOPE This Military Detailed Specification covers the requirem
2、ent for cattlehide leather for use in upholstering furniture and motor vehicle seats. 2. CLASSIFICATION. The leather will be in the following types and finishes: Type1 - fullgrain Type II - hand buff Type III - Machine buff Type IV - deep buff Finish a - Smooth grain Finish b - Boarded (bend or mach
3、ine) Finish c - Embossed in fine grain Finish d - Embossed in coarse grain Finish e - Equal to an approve sample Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Defense Supply Center Philadelphi
4、a, Clothing and Textiles Directorate, Attn: DSCP-COC, bld 6-1-D, 700 Robbins Ave, Philadelphia, PA 19111- SO96 AMSC NIA FSC 8330 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32071 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed i
5、n 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 u
6、sers 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 herein. Unless otherwise specif
7、ied, 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). AMERICAN SOCIETY FOR TESTING
8、 AND MATERIALS D-5053 Resistance to Crocking of Leather D-3 1 1 1 Tackiness of Finish on Leather D- 2031 Breaking Strength of Leather by the Grab Method D- 6341 Hexane Extraction of Leather D- 6621 pH of Leather (Applications for copies should be addressed to American Society For Testing and Materia
9、ls, 100 Barr Harbor Drive, West Conshohocken, PA 19428.) ANSUASQC 21.4 (Applications for copies should be addressed to ANSUASQC American Society for Quality Control 611 East Winconsin Ave. , Milwaukee WI 53202) (Non-Government standards and other publications are normally available from the organiza
10、tions 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 between the text of this document and the references cited herein (except for related associated specifi
11、cations 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 obtained. 3. REQUIREMENTS 3.1 Materials The material shall be cattlehide leather. The flesh side shall be sm
12、ooth and free from loose flesh. 3.2 Tannage. The leather shall be tanned by a vegetable, mineral, or synthetic tanning process, or suitable combinations of such processes. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL- DTL-3 2 07 1 3.3 Types.
13、 3.3. I Tvpe I, full grain. The leather shall be a hide from which nothing except the hair and scud has been removed from the grain side. Superficial scars: scratches, and other grain defacements may be lightly buffed by hand, but not by machine. The total area so affected shall be not more than 5 p
14、ercent of the total area of the hide. 3.3.2 Type II, hand buff. The leather shall be a fll grain hide except that the entire grain area may be scuffed, but not to more than the depth required to remove only the top portions of the hair follicles. 3.3.3 Tvpe III, machine buff. The leather shall be a
15、hide from which not more than the Grain layer has been removed, leaving no characteristics of the grain pattern on any part of the underlying surface. 3.3.4 Type IV. deep buff. The leather shall be a hide from which not more than the grain layer has been removed, leaving no characteristics of the gr
16、ain pattern on any part of the underlying surface. 3.4 Phvsical reauirements. 3.4.1 Trim (form and area) . The leather shall be whole hides, evenly trimmed, with the head cut off behind the natural openings, the shanks cut off above the knees, and the tail not more than 2 inches long. Unless otherwi
17、se specified (see 6.2 and 6.4) the minimum area of each hide shall be 36 square feet. The maximum area of each hide shall be 55 square feet. The area, expressed in terms of square feet, shall be legibly marked in the butt area of the flesh side of each hide. 3.4.2 Thickness. Unless otherwise specifi
18、ed (see 6.2), the leather shall be 3 2 !h ounces in thickness. The flesh side may be buffed shaved or skived to produce a uniform thickness. Note: 1 ounce = 1/64 inch. 3.4.3 Color. The color of the finished leather shall be as specified (see 6.2 and 6.3). For types I and II leather, the color (dye)
19、shall penetrate not less than the full depth of the grain leather. For types III and IV leather, the color (dye) shall penetrate the grain side of the leather in a depth of not less than two ounces. 3.4.4 Finish. The grain surface of the leather shall be smooth, boarded, or embossed as required for
20、the finish specified (see 6.2). the finish coat shall be a suitable material that is securely anchored to the grain surface of the leather. When finish “c“ is specified, the finish of the grain surface shall be equal to an approve sample (see 6.3). 3.4.5 Cracking. low temperature. The leather shall
21、not crack when tested as specified in 4.3 3.4.6 Colorfastness (resistance to rubbing). The leather shall be tested for resistance to dry and wet crocking in accordance with 4.3. Staining of the dq cloth shall be not lower than Munsell value 8.5 and staining ofthe wet cloth shall be not lower than Mu
22、nsell value 6.5. 3.4.7 Tackiness. The leather shall show no tendency toward tackiness when tested as specified in 4.3. 3.4.8 Breaking force and elongation. Not less than 80 percent ofthe specimens tested shall conform to the requirements indicated in table I when tested as specified in 4.3. TABLE I.
23、 Breaking force and elongation 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Type Breaking force I/ Pounds (minimum) L-DTL-3 Elongation 1/ Elongation percent (maximum) load (pounds) I and 11 90.0 III and IV 135.0 40 40 50. O 100.0 - I/ Not applic
24、able to leather less than 2 L/z ounces in thickness 3.5 Chemical requirements. 3.5.1 specified in 4.3 The leather shall conform to the chemical requirements of table II when tested as TABLE II. Chemical requirements Characteristics Muiimum Maximum Chloroform-soluble material (percent) I/ 8.0 PH valu
25、e 3.3 20 5.0 - 1/ Calculated on a moisture free basis. 3.6 specification. The occurrence of defects shall not exceed the applicable acceptable levels. workmanship. The finished leather shall conform to the quality established by this 4.0 VERIFICATION. 4.1 as follows: Classification of inspections. T
26、he inspection requirements specified herein are classified 4.1.1 government reserves the right to check test such items to determine the validity of the certification. Certificate of compliance. Where certificates of compliance are submitted, the 4.2 provisions of ANSUASQC Z1.4, except where otherwi
27、se indicated hereinafter. Ouality conformance inspection. Sampling for inspection shall be in accordance with the 4.2.1 material shall be tested in accordance with all the requirements of referenced specification, drawings, and standards unless otherwise excluded, amended, modified, or qualified in
28、this specification or applicable purchase document. CornPonent and material inspection. In accordance with 4.1 above: components an 4.2.2 Examination of the end item. The classification of defects found during the examination shall be in accordance with the lists show in 4.2.2.1 and 4.2.2.2. The sam
29、ple unit for these examinations shall be one side, back, bend, or double shoulder. The lot size shall be expressed in 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32071 terms of one side, back, bend, or double shoulder. A sample size of
30、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 may be used for each examination. 4.2.2.1 Examination for visual
31、 characteristics. Examine Defect Material Type Trim Color Types I and II Type III and IV Finish Quality of leather Not cattlehide Not as specified Not whole hide with head removed Not evenly trimmed Shanks not cut off above the knees Not as specified Dye does not completely penetrate leather Dye pen
32、etrates grain side to a depth of less than two ounces Grain surface not smooth, not boarded, not Embossed as required or not equal to approved Sample for the finish specified Grain side does not have finish coat Stain or foreign matter Flesh side not free of loose flesh or not smooth Cut, scratch, h
33、ole, band, broken grain, hip mark, Vein, wrinkle, rough shoulder, or the imperfection That individually or collectively cause more than A 6% loss in the total area of the hide 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32071 4.2.2.2 Ex
34、amination for dimensional characteristics. Examine Defect Area (expressed in Terms of square feet) Marking Thickness L/ Area not as marked on hide Unless otherwise specified (see 3.4.1), area less Than 36 square feet. Area greater than 55 square feet. Omitted, illegible, or not in area specified Not
35、 as specified - 1/ Thickness shall be measured in accordance with ASTM-D- 18 14. No individual thickness value shall be less than the minimum or greater than the maximum specified. 4.3 End item testing. The methods of testing specified in ASTM wherever applicable and as listed in table IV, shall be
36、followed. Sampling procedure and location from which the sample unit is to be obtained shall be in accordance with ANSUASQC 21.4. 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
37、. More than three test 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. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted
38、without license from IHS-,-,-MIL-DTL-32071 TABLE IV Tests Requirement Characteristic paragraph Requirement Applicable to Test Sample Composite method unit sample Material identification 3.1 Tannage 3.2 Colorfastness (resistance to rubbing) 3.4.6 Cracking, low temperature 4.5 Breaking force 3.4.8 Elo
39、ngation 3.4.8 Chloroform-soluble material 3.5.1 pH value 3.5.1 ASTM-D- 60 1 2 ASTM-D-6075 AS TM- D - 220 8 AS TM- D - 220 8 ASTM-D-3495 ASTM-D-28 10 X X X X - X - X - 11 Unless otherwise specified, a certificate of compliance is required and will be acceptable for the stated requirement. 4.3.1 Crack
40、ing. The leather shall be tested for cracking in accordance with ASTM-D-6075, except that the specimen shall be a 4 by inch rectangle of leather and shall be folded twice upon itself in accordance with the following procedure: the specimen shall be folded upon itself along the length dimension with
41、the flesh side in and then folded at right angles to the original fold. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32071 5. PACKAGING. 5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the con
42、tract or order (see 6.2). When actual packaging of materiel is to be performed by DoD personnel, these personnel need to contact the responsible packaging activity to ascertain requisite packaging requirements. Packaging requirements are maintained by the Inventory Control Points packaging activity
43、within the Military Department or Defense Agency, or within the Military Departments System Command. Packaging data retrieval is available from the managing Military Departments or Defense Agencys automated packaging files, CD-ROM products, or by contacting the responsible packaging activity. 6. NOT
44、ES 6.1 Intended use. The leather is primarily intended for use in upholstering furniture and motor vehicle seats. 6.2 Acquisition requirements. Acquisition documents should specify the following: a. Title, number, and date of this specification b. Type and finish required (see 2.0) c. Minimum area w
45、hen 36 square feet is not sufficient (see 3.4.land 6.4) d. Thickness required (see 3.4.2). e. Color required (see 3.4.3) f. Packaging requirements (see 5.1) 6.3 For access to samples, address the procuring agency issuing the invitation for bids. 6.4 &a. When the minimum area of 36 square feet is not
46、 sufficient to accommodate the dimensions or the components to be obtained from the leather, an appropriate minimum area should be specified for the leather (see 3.4.1). 6.5 Subiect term (key word) listing. Full grain Hand buff Machine buff Deep buff Embossed 8 Provided by IHSNot for ResaleNo reprod
47、uction or networking permitted without license from IHS-,-,-MIL-DTL-32071 MILITARY INTERESTS: Custo dians Army - GL Air Force - 11 Navy YD Review Ac tivities ARMY - MD, AT Navy - MC ,SH Air Force - 82 CIVIL AGENCY COORDINATING ACTIVITY: DLA GSA - FSS PREPARING ACTIVITY: DLA - CT Project 8330-0203 9
48、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32071 a. NAME (Last, First, Middle Initial) c. ADDRESS (Include Zip Code) STANDARDIZATION DOCUMENT IMPROVEMENT PROPOSAL INSTRUCTIONS 1. The preparing activity must complete blocks 1, 2, 3, and 8
49、. In block 1, both the document number and 2. The submitter of this form must complete blocks 4, 5, 6, and 7 and send to preparing activity. 3. The preparing activity must provide a reply within 30 days from receipt of the form. NOTE: This form may not be used to request copies of documents, nor to request waivers, or clarification of requirements on current contracts. Comments submitted on this f
