1、MIL-L-432833 SUPERSEDING MIL-L-43283A 6 October 1969 i6 June 19Gl MILITARY SPECIFICATION *LEATHER, CALFSKIN, KIP, AND CATTLEHIDE FOR FOOTWEAR UPPERS, CHROME TANNED This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE * 1.1 Scope. burnished ful
2、l grain, calfskin, kipskin, and cattlehide upper leather. This specification covers smooth finish, full grain calfskin and . * 1.2 Classification. specified (see 6.2): The leather shall be furnished in the following types as Type I - Calfskin Type II - Kip Type III - Cattlehide sides 2. APPLICABLE D
3、OCUMENTS 2.1 Issues of documents. The following documents, of the issue in effect on date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein: SPECIFICATION MILITARY MIL-L-43432 - Leather, Packaging and Packing Of t- 1 Beneficial comments
4、(recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be address to: Watick, MA 01760 by using the self-addressed Standardization Document 1 improvement Proposal (DD Form 1426) appearing at the end of this d,ocu- ment or by letter. Ifs A
5、my Natick Research and Development Laboratories, fi Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MlL-4-43283B STANDARD I -a- % L FEDERAL FED-STD-311 - Leather, Methods of Sampling and Testing 3 REQUIREMENTS * 3.1 Naterial. kipskin or cattlehide, a
6、s specified (see 1.2). The leather shall be made from brined or green-salted calfskin, I 3.1.1 Type I. Type I shall be full grain calfskin or burnished full grain calf skin, 3?1.2 Type II. * 3.1.3 Type III. Type II leather shall be burnished full grain kip. Type ILI leather shall be burnished full g
7、rain cattlehide. 3.2 Tannage, The leather shall be chrome tanned. 3.3 Physical requirements. * 3.3.1 whole skins. skins. shall conform with the applicable definitions listed under “Definition Of Terms“ in PED-STD-311. IIlside shall not exceed 17-3/4 square feet and the whole kipskin shall not exceed
8、 35-1/2 square feet in area. area. the flesh side of the leather. Trim (form and area). Type I leather shall be furnished in the form of Type II leather shall be furnished in the form of sides or whole The type III leather shall be furnished in the form of sides. The leather The type 1 calfskin shal
9、l not exceed 20 square feet in area. The type Type III cattlehide shall not exceed 22 square feet in The area in terms of square feet shall be legibly marked in the butt area on 0 b (Copies of specifications, standards, drawings and publications required by contractors in connection with specific pr
10、ocurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 3.3.2 - Color. The color of the leather shall be as specified (see 6.2). The leather shall be dyed on the grain side and flesh side. both sides of the leather, but need not be struck entire
11、ly through the leather. Leather previously dyed or finished in a color not specified and then redyed or refinished to match a specified color shall not be acceptable. grain side. emulsion top finish based essentially on nitrocellulose compounding shall be applied to the grain side of all leather exc
12、ept glazed calfskin* The dye shall penetrate 3.3.3 Finish, The leather shall have a smooth, bright, pigmented finish on the Embossed or printed leather shall not be acceptable. A lacquer 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-L-43283
13、B 3.3.3.1 Burnishing. Burnishing shall be accomplished with automatic machines equipped with 400 grit or 320 dull grit cloth or paper. shall slightly level out the peak strata of the grain, but shall not remove all evidence of the grain. be permitted. The burnishing operation Snuffing or buffing to
14、correct surface blemishes shall not * 3.3.4 Thickness. The leather shall be furnished in the following thickness. z?!E Thickness (ounces) I II III 2 to 4 3-1/4 to 4-1/2 3-1/4 to 4-1/2 NOTE: 1 ounce = 1/64 inch 3.3.5 Stitch tearing strength. Not leas than 80 percent of the specimens tested shall have
15、 a minimum stitch tearing strength of 30 pounds when tested as specified in 4.2.2.2. 3.3.6 Shrinkage temperature. The leather shall have a minimum shrinkage temperature of 97OC when tesizd as specified in 4.2.2.2. 3.4 Chemical requirements. 3.4.1 Leather. The leather shall conform to the chemical re
16、quirements of table I when tested as specified in 4.2.2.2. TABLE I. Chemical requirements _. Characteristic . Minimum Maximum Chloroform - soluble material, percent - 1/ Chromic oxide, percent 1/ 3 .O 3 *O 12 .o 7 .O pH value 3 .O 4.5 - i/ contain not less than 0.18 percent nor more than 0.70 percen
17、t paranitrophenol fungicide when tested as specified in 4.2.2.2. Calculated on the moisture free basis. 3.4.2 Paranitrophenol. Unless otherwise specified (see 6.2), the leather shall II Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-43283B 3 7
18、97970b 0392b3 T , I MIL-L-4 328 3 B 3.5 Workmanship. by this specification, The leather shall conform to the quality of product established The occurrence of defects shall not exceed the appplicable acceptable quality levels. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless
19、otherwise specified in the contract, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements
20、 specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.11 Certificate of compliance.
21、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 Quality conformance inspection. Unless otherwise specified, sampling for inspection shall be perfomed in accordance with FED-STD-311. 4.2.1
22、 Component and material inspection. In accordance with 4.1, components and materials shall be inspected in accordance with all the requirements of referenced specifications, drawings and standards, unless otherwise excluded, amended, modi- fied, or qualified in this specification or applicable purch
23、ase document. 4.2.2 End item inspection. * 4.2.2.1 End item examination. The leather shall be examined for the visual and dimensional defects indicated in 4.2.2.1.1 and 4.2.2.1.2. The sample unit for these examinations shall be one side, or skin. The lot size shall be expressed in units of one side
24、or skin. Sampling for these examinations shall be performed in accor- dance with FED-STD-311 except that a sample size of 15 and a rejection number of 2 shall be applicable for thickness determinations on lots consisting of 51 or more aides or skins. Separate examinations shall be performed for visu
25、al and dimensional characteristics, but the same sample may be used for each examination. 4- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-43283B 1 *4.2.2.1.1 Visual examination. Examine Defect Mat er i a Type 1 Type II Type III Not full grai
26、n or burnished full grain calfskin. Not burnished full grain kip. Not burnished full grain cattlehide. Trim Type I Type II Type III Color Finish Not whole skins. Not whole skins or sides. Not sides . Not as specified or not uniform. Dye does not penetrate grain and flesh side. Evidence that leather
27、has been redyed or refinished to cover unspecified color. Finish not smooth. Finish not bright. Finish peeled, chipped or tacky. Grain snuffed or buffed. Finish missing. Quality of le-ather Cut, hole, open or badly healed scratch, tear, stain, deep fat wrinkle, heavy vein, hip mark, rough shoulder,
28、coarse grain, pipey area, loose flesh or other surface imperfection which individually or collectively impair the cutting value of more than 10percent of the area of the leather. e 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-43283B * 4.2.
29、2.1.2 Dimensional examination. Examine Defect Area (expressed in terms of square feet) Less than area marked on leather. Type 1 Area exceeds 20 square feet. Type II Area of kip side exceeds 17-3/4 square feet. Area of whole skin exceeds 35-1/2 square feet. Type III Area of side exceeds 22 square fee
30、t. Omitted, illegible, or not in area specified. Marking Thickness - 1/ Type f. Type II Type III Less than 2 ounces or greater than 4 ounces. Less than 3-1/4 ounces or greater than 4-1/2 ounces. Less than 3-1/4 ounces or greater than 4-1/2 ounces. - l/ Thickness shall. be determined in accordance wi
31、th Method 1011 of FED-STD-311. individual thickness value shall be less than the minimum or greater than the maximum specified. No 4.2.2.2 End item testiw The methods of testing specified in FED-STD-311 Sampling . wherever apzicable and as listed in table II, shall be followed. procedure and locatio
32、n from which the sample unit is to be obtained shall be in accordance with FED-STD-311. utilized in expressing the final result. the following conditions exist: All test reports shall contain the individual values The lot shall be rejected if any one of a. b. More than one test failure occurs for sh
33、rinkage temperature. ce More than three test failures occur for stitch tearing strength. . Any composite test result fails to meet the specified requirement. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-O MIL-L-43283B TABLE II. End item testing
34、Requirement applicable to Requirement Test Sample Characteristic paragraph method unit Composite . Mat er ia1 identification Tannage Finish Stitch tearing strength Shrinkage temp- era ture Chloroform-soluble material Chromic oxide PE value Paranitrophenol 3.1 3.2 3.3.3 3.3.5 303.6 3.4.1 3.4.1 3.4.1
35、3.4.2 - i/ - i/ - 11 2151 7011 6341 6515 6621 6711 X X - i/ Unless otherwise specified, a certificate of compliance shall be submitted and will. be acceptable for the stated requirement. 4.2.3 Packaging inspection. An examination shall be made in accordance with the provisions of -MIL-L-43432 to det
36、ermine that preservation packaging, packing and marking comply with the section 5 requirements. I 5. PACKAGING * 5.1 specified (see 6.2). . Preservation packaging, Preservation packaging shall be level A or C as 5.1.1 tevels A and C. Leather shall be preserved packaged in accordance with the applica
37、ble requirements of MIL-L-43432. , 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_-_ - - -. - MIL-L-43283B 83 777770b 03728b5 7 - MIL-L-43283B 5.2 Packing. Packing shall be level A, B, or C as specified (see 6.2). 5.2.1 Levels A, B, and C, Leathe
38、r shall be packed in accordance with the applicable requirements of MIL-L-43432. 5.3 Marking. In addition to any special marking required by the contract, unit packs and shipping containers shall be marked in accordance with MIL-L-43432. 6. MOTES 6.1 Intended use. The leather is intended for use as
39、upper leather in Department of Defense dress shoes. 6.2 Ordering data. Procurement documents should specify the following: (a) Title, number and date o this Specification. (b) Type required (see 1,2). (c) Color required (see 3.3.2). (d) (e) When paranitrophenol fungicide is not required (see 3.4.2).
40、 Selection of applicable levels of preservation packaging and packing (see 5.1 and 5.2). 6.3 Changes from previous issue. The margins of this specification are marked with an asterisk to indicate where changes (additions, modifications, corrections, deletions) from the previous issue were made. This
41、 was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the l
42、ast previous issue. Custodians: Amy - GL Navy - Nu Air Force - 11 Review activities: Army - EID Air Force - 99 DILA - CT User activity: . Navy - MC 8 Preparing activity: Army - GL Project No, 8330-0183 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
