1、MIL-C-43204C(GL) 31 December 1985 SUPERSEDING MIL-C-43204B(GL) 23 March 1977 MILITARY SPECIFICATION CLOTH, SPACER (OLEFIN) This specification is approved for use by Natick Research and Development Center, Department of the Army, and is available for use by all Departments and Agencies of the Departm
2、ent of Defense. 1. SCOPE 1.1 Scope. This document covers the requirements for spacer cloth. 1.2 classification. The spacer cloth shall be of the following types as specified (see 6.2). Type I - 9.5 oz per sq yd (min) Type II - 15.0 oz per sq yd (min) Type III - 8.25 oz per sq yd (min) 2. APPLICABLE
3、DOCUMENTS I 2.1 Government documents. Unless otherwise specified, the following documents of the issue in effect on date of invitation for bids or request for proposal form a part of this document to the extent specified herein. SPECIFICATIONS FEDERAL PPP-P-1133 - Packaging of Synthetic Fiber Fabric
4、s Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to U.S. Army Natick Research and Development Center, Natick, MA 01760-5014, by using the self-addressed Standardization Document Improvement Proposa
5、l (DD Form 1426) appearing at the end of this document or by letter. msc N/A FSC 8305 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited . THIS DOCUMENT CONTAINS L3 PAGES. Licensed by Information Handling ServicesMIL-C-Ll320LlC 83 W 999790b 0372537 1 m MIL-C-43204C(GL)
6、STANDARDS FEDERAL FED-STD-191 - Textile Test Methods MILITARY MIL-STD-105 - Sampling Procedures an1 Attributes Tables for Inspection by (Copies of documents required by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by
7、the contracting officer.) OTHER GOVERNMENT DOCUMENTS Laws and Regulations Rules and Regulations Under the Textile Fiber Products Identification Act (Application for copies should be addressed to the Federal Trade Commission, Washington, D.C. 20580.) 2.2 Order of precedence. In the event of conflict
8、between the text of this document and the references cited herein, the text of this document shall take precedence. 3. REQUIREMENTS 3.1 First article. When specified, a sample shall be subjected to first article inspection (see 4.3, 6.2, and 6.3). 3.2 Materials. 3.2.1 Polyethylene yarn (type I and t
9、ype III). The polyethylene yarn for warp No. 1 and No. 2 shall be shrinkable branch type polyethylene. The yarn diameter shall be 0.010 inch plus or minus 0.001 inch initially, prior to fabrication of the finished cloth. 3.2.2 Polypropylene yarn (type I and type III). The polypropylene yarn for warp
10、 No. 3 and the filling shall have a diameter of 0.010 inch plus or minus 0.001 inch initially, prior to fabrication of the finished cloth. 2 Licensed by Information Handling ServicesMIL-C-LI320LIC 83 m 7777706 0372538 3 m 3.2.3 Polyethylene yarn (type II). The polyethylene yarn for the warp and fill
11、ing shall be medium density polyethylene type. Yarn size for the warp and filling shall be 960 denier prior to finishing of the woven cloth. 3.3 Color. The color of the cloth shall be that resulting from the color of the yarns available at the time of acquisition. * 3.4 Physical requirements. The fi
12、nished cloth shall conform to the requirements specified in table I when tested as specified in 4.5. TABLE I. Physical requirements Characteristics Requirements Weight oz/sq yd Type I Type II Type III 9.5 min, 15.0 min, 8.25 min, 11.5 max 19.5 max 10.25 max Thickness ,- min (inches) o. 120 O. 170 In
13、itial O. 170 Compressed O .O75 O .O70 O .O45 After compression O. 150 o. 100 O. 150 Texture, min Warp No. 1 Polyethylene 20 ends/inch 58 ends/inch 19 ends/inch Warp No. 2 Polyethylene 19 ends/inch - 19 ends/inch Warp No. 3 Polypropylene 27 ends/inch 25 ends/inch Fil ling Polypropylene 70 picks/inche
14、s - 64 picks/inch Polyethylene - 35 picks/inch - 3 Licensed by Information Handling Services.- MIL-C-43204C 83 777770b 0372537 5 m MIL-C-43204C(GL) TABLE I. Physical requirements - Continued Characteristics Requirements Breaking strength, min (pounds) Warp Filling 110 200 175 100 110 180 3.4.1 Width
15、. Unless otherwise specified (see 6.2), the width shall be a minimum of 58 inches, inclusive of selvage. 3.4.2 Weave. 3.4.2.1 Type I and type III. The cloth shall have a weave that is formed by the weaving of three warps. The yarn for warp No. 1 and No. 2 shall conform to 3.2.1, and the yarn for war
16、p No. 3 and the filling shall conform to 3.2.2. The weave pattern shall be as shown in figure 1. 3.4.2.2 Type II. The cloth shall have a honeycomb weave pattern as shown in figure 2. 3.5 Finishing. The cloth shall be so processed as to meet the physical requirements in 3.4 and the dimensional stabil
17、ity requirement in 3.5.1. 3.5.1 Dimensional stability. 3.5.1.1 Type I. The finished type I cloth shall show a dimensional change of not more than 4.0 percent in the warp direction and not more than 2.0 percent in the filling direction when tested as specified in 4.5. 3.5.1.2 Type II. The finished ty
18、pe II cloth shall show a dimensional change of not more than 8.5 percent in the warp direction and not more than 6.2 percent in the filling direction when tested as specified in 4.5. 3.5.1.3 Type III. The finished type III cloth shall show a dimensional change of not more than 8.5 percent in the war
19、p direction and not more than 2.0 percent in the filling direction when tested as specified in 4.5. 4 Licensed by Information Handling Services3.6 Length and put-up. Unless otherwise specified, the finished cloth shall be furnished in continuous lengths, each not less than 35 yards. The cloth shall
20、be put up in a full width roll as specified in 5.1. 3.7 Fiber identification. Each roll of cloth shall be labeled or ticketed for fiber content in accordance with the Textile Fiber Products Identification Act. 3.8 Workmanship, The finished cloth shall conform to the quality and grade of product esta
21、blished by this document. The occurrence of defects shall not exceed the applicable acceptable quality levels. . 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all i
22、nspection requirements as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reser
23、ves the right to perform any of the inspections set forth in the document where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. 4.1.1 Certificate of compliance. Where certificates of compliance are submitted, the Government reserves the right
24、 to check-test such items to determine the validity of the certification. 4.2 Classification of inspection. The inspection requirements specified herein are classified as follows: a. b. First article inspection (see 4.3). Quality conformance inspection (see 4.4). 4.3 First article inspection. When a
25、 first article is required (see 6.2), it shall be visually inspected for appearance. 4.4 Quality conformance inspection. Unless otherwise specified, sampling for inspection shall be performed in accordance with MIL-STD-105. 4.4.1 Component and material inspection. In accordance with 4.1, components
26、and materials shall be inspected in accordance with all the requirements of referenced documents unless otherwise excluded, amended, modified, or qualified in this document or applicable purchase document. 5 Licensed by Information Handling ServicesMIL-C-q3204C 83 W 777770b 0372543 3 4.4.2 Examinati
27、on of the end item. Examination of the end item shall be in accordance with 4.4.2.1 through 4.4.2.3. 4.4.2.1 Yard-by-yard examination. The defects listed below shall be counted regardless of their proximity to each other, except where two or more defects represent a single local condition of the clo
28、th, in which case only one defect shall be counted. A continuous defect shall be counted as one defect for each warpwise yard or fraction thereof in which it occurs. The sample unit shall be 1 linear yard. The inspection level shall be I, and the acceptable quality level (AQL) shall be 6.5 defects p
29、er hundred yards. An approximately equal number of yards shall be examined from each roll selected. (The number of rolls from which the sample is to be selected shall be in accordance with table II.) Defects Broken pick over one quarter the width of the cloth Width less than specified Harness skip E
30、nd out over three inches Open or thin place Wrong draw Spots and stains Any cut, hole, or tear Mi spick Mi sweave 4.4.2.2 Overall examination. Each defect listed below shall be counted not more than once in each roll examined, The sample unit shall be one roll. The sample size (number of rolls selec
31、ted as sample) and the number of defects acceptable shall be shown in table II. Defects Overall uncleanness or soiled Buckled, ridgy, wavy, or distorted 6 Licensed by Information Handling ServicesMIL-C-43204C 83 7797706 0372542 5 = MIL-C-43204C(GL) TABLE II. Sample size Lot size in yards Sample size
32、 in rolls Acceptable number of defects up to 1200 Y 3 O 1201 up to and including 3200 5 O 3201 up to and including 10,000 8 O 10,001 up to and including 35,000 13 O 35,001 and over 20 1 i/ examined. If lot contains fewer than 3 rolls, each roll in the lot shall be 4.4.2,3 Length examination. 4.4.2.3
33、.1 Examination for length of individual rolls. The rolls shall be examined for gross length. Any gross length found to be less than the specified minimum length or any gross length found to be more than 1 yard below the gross length marked on the roll ticket shall be considered as a defect with resp
34、ect to length. The sample unit for this examination shall be one roll. The number of rolls selected as a sample (sample size) for this examination and the acceptance number shall be in accordance with table II. 4.4.2.3.2 Examination for total yardage in sample. The lot shall be unacceptable if the t
35、otal of the actual gross length of rolls in the sample is less than the total of the gross lengths marked on roll tickets. 4.4.3 Packaging inspection. The inspection shall be in accordance with the quality assurance provisions of PPP-P-1133. 4.5 Tests. The methods of testing specified in FED-STD-191
36、, wherever applicable and as specified in table III, shall befollowed. The sample unit shall be 2 continuous yards full width of the finished cloth. The lot shall be unacceptable if one or more sample units fail to meet any test requirement specified. size (number of sample units) shall be in accord
37、ance with the following: The lot size shall be expressed in units of 1 yard. The sample 7 Licensed by Information Handling Services- MIL-C-43204C 83 = 9777706 0372543 7 a Lot size (yards) 800 or less 801 up to and including 22,000 22,001 and over Sade size (units) 2 3 5 TABLE III. Test methods Yarn
38、identification Yarn diameter, denier Requirement Test Character i s t i c reference method 1 3.2.1, 3.2.2, - i/ and 3.2.3 3.2.1, 3.2.2, - 11 and 3.2.3 Weight Thickness Initial Compressed After compression Texture 3.4 3.4 3.4 3.4 Warp No. 1 - Polyet,y,me 3.4 Warp No. 2 - Polyethylene 3.4 Warp No. 3 -
39、 Polypropylene 3.4 Filling - Polypropylene 3.4 Filling - Polyethylene 3.4 8 5041 4.5.1 4.5.1.3.1 4.5.1.3.2 5050 5050 5050 5050 5050 e Licensed by Information Handling ServicesMIL-C-43204C 83 m 7977906 0372544 7 TABLE III. Test methods - Continued Characteristic Requirement reference Test method Brea
40、king strength Warp Fil ling 3.4 3.4 5104 5104 Weave 3.4.2 Visual - i/ Dimensional stability 3.5.1 4.5.2 1/ Unless otherwise specified, a certificate of compliance shall be submitted and will be acceptable for the stated requirement. 4.5.1 Determination of thickness values. 4.5.1.1 Preparation of spe
41、cimen. Five specimens shall be cut from different parts of a full width sample and shall measure not less than 6 inches by 6 inches. 4.5.1.2 Apparatus. The test apparatus shall be a compressometer with a round pressure foot of 20 square inches area with a bearing surface capable of measuring 0.01 po
42、und per square inch to 10.0 pounds per square inch without moving the specimen from under the pressure foot once the test is started, The pressure plate shall travel 0.2 inch per minute. 4.5.1.3 Procedure. Balance the compressometer. After balancing, place a test: specimen under the pressure foot ar
43、ea and set the machine for 0.10 pound per square inch thickness. Lower the pressure foot and record the thickness reading under 0.10 pound per square inch as “Initial Thickness of Specimen“. Immediately after determining the initial thickness, lower the pressure foot until the pressure on the specim
44、en has reached 10.0 pounds per square inch. Maintain the 10.0 pounds per square inch pressure on the specimen for one minute. At the end of the 1-minute period, record the thickness of the specimen as the “Compressed Thickness“. Remove the pressure immediately and completely. After removal of the pr
45、essure, allow the specimen to relax for five minutes. Repeat the procedure of compression and relaxation five times 9 Licensed by Information Handling Serviceson the same specimen. the specimen again relaxed without load for five minutes, measure the specimen at 0.10 pounds per square inch and read
46、the thickness reading as the “Thickness of the Specimen after Compression“. After the fifth load of 10 pounds has been removed and 4.5.1.4 Report. The initial thickness, compressed thickness, and thickness after compression shall be determined on five specimens, and the individual characteristic res
47、ults averaged and reported to the nearest 0.001 inch. 4.5.2 Dimensional stabilitv. 4.5.2.1 Test specimen. The specimen shall be a square of,cloth 24 by 24 inches cut from different areas of the material and marked off in 18-inch lengths in the warp and filling direction. No specimen shall contain th
48、e same filling yarns. 4.5.2.2 Apparatus. Hot air oven capable of maintaining a temperature of 200“ k5“F. 4.5.2.3 Procedure. Place the specimen in the hot air oven for 30 minutes at a temperature of 200“ k5“F. before determining the dimensional changes of the cloth. Unless otherwise specified, three
49、specimens shall be tested from each sample unit. The percent change of the sample unit shall be the average of the three specimens tested and shall be reported separately for the warp and filling to the nearest 0.1 percent. When a test result registers elongation (gain) rather than a shrinkage, each elongation result shall be prefixed with a minus sign and both the minus sign and the value enclosed in parentheses. Remove the specimen and allow it to cool * 5. PACKAGING 5.1 Put-. Put-up and preservation shall be level A or Commercial, as specified (see 6.2). 5.1.1 Levels A and Commercial
