1、- MIL-C-87262 3 9999906 0508343 3 M MITi-C-87262 (USAF) 11 Februaqy1992 MILITARY SPECIFICATION CLOTH, PLAIN WEAVE, POLYBENZIMIDAZOLE/ARAMID BLEND This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE. This specification covers the requirements
2、for intimately blended polybenzimidazole, aramid and, if specified, stainless steel piece dyed woven cloth used in the manufacture of speciaI clothing. 1.2 Classification. The cloth shall be one of the following classes specified (see 6.2,6.6,6.7, and 6.8). Class 1 -Antistatic treated Class 2 - Quar
3、pel treated 2. APPLICABLE DOCUMENTS 2.1 Government documents 2.1.1 Specifications and standards. Unless otherwise spefiied (see 6.2), the following specifications and standards of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) specified in
4、the solicitation, form a part of this specification to the extent specified herein. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: ASD/ENES, Wright-PattersonAFB OH 45433-6503 by using the self-
5、addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC NIA FSC 8305 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without
6、license from IHS-,-,-MIL-C-72b2 83 999990b 05081YY 5 I L MIL-C-87262 SPECIFICAITIONS FEDEM PPP-P-1133 - Packaging of Synthetic Fiber Fabrics MILITARY MIL-Tal O0 - Thread, Para-Aramid, Spun, Intermediate Modulus STANDARDS FEDEM FEDSTD-4 - Glossary of Fabric Imperfections FED-STD-191 - Textile Test Me
7、thods FED-STD-696 - Colors Used in Government Procurement MILITARY MIGSTD-106 - Sampling Procedures and Tables for Inspection by Attributes (Copies of specifications, standards, drawings and publications required by suppliers in connection with specific procurement functions should be obtained from
8、the procuring activity or as directed by the contracting oficer.) 2.1.2 Other Government documents, drawings, and publications. The following other Government documents form a part of this specification to the extent specified herein. Rules and Regulations Under the Textile Fiber Products Identifica
9、tion Act (Copies may be obtained without charge from the Federal Trade Commission, Washington, D.C. 20680) Technical Manual of the American Association of Textile Chemists and Colorists Method Number 76-1978 - Electrical Resistivity of Fabrics Method Number 136-1987 - Dimensional Changes in Automati
10、c Home Laundering of Durable Press Woven or Knit Fabric (Applications for copies of the AATCC Manual should be addressed to the AATCC National Headquarters, P.O. Box 12216, Research Triangle Park, North Carolina 27709) 2.1.3 Order of precedence. In the event of a conflict between the text of this sp
11、ecification and the references cited herein, the text of this specification shall take precedence. 3.1 Staildard sample. The dyed and finished cloth shall match the standard sample for shade and shall be equal to or better than the standard sample with respect to all characteristics for which the st
12、andard sample is referenced (see 6.3). 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-C-87262 3 m 9999906 0508345 7 m MIL-C-87262 3.2 First article. This specification contains provisions for first article inspection and approval (see 4.4 and
13、 6.2). 3.3 Material 3.3.1 Fiber. The fibers shall be (1) non-melting aramid, 1.6 denier per fdament, cut to a staple length of 2 inches, (2) polybenzimidazole (PBI), 1.4 denier per fdament cut to staple length of 2.0 inches and, if specified, (3) stainless steel, 8 micron diameter cut to a staple le
14、ngth of 2.0 inches. The aramid fiber shall not char at temperature less than 676“ F (368“ C) and the PBI fiber shall not char at temperature less than 676 F (358“ C) when tested as specified in 4.7. 3.3.2 Yarn. The yarn shall be an intimate blend with 20 percent by weight being PBI fiber and 80 perc
15、ent by weight being aramid fiber. Ifspecified, 1% stainless steel fiber by weight shall be intimately blended with 20% PBI fiber by weight and 79% aramid fiber by weight (see 6.7). The yarn shall be spun into 2 ply for both the warp and filling (see 6.4). 3.3.3 Fabric. The fabric shall not break ope
16、n allowing the flame from a Meker burner to pass from the flame contact side to the other side of the fabric when tested as specified in 4.7.2. 3.4 Color. Unless otherwise specified, the color of the cloth shall be sage green, USAF color shade No. 1690 in accordance with FEDSTD-696. The color of the
17、 cloth shall be obtained by piece dyeing. 3.4.1 Matching. The color of the finished cloth shall match the standard sample under artificial daylight having a correlated color temperature of 7000 f 600 kelvin and shall be a good approximation to the standard sample under incandescent lamplight at 2860
18、 f 100 kelvin. 3.4.2 Colorastness. The dyed and finished cloth shall show colorfastness to light and to laundering equal to or better than the standard sample when tested as specified in 4.7. 3.5 Physical requirements. The physical requirements of the finished cloth shall be as specified in table I
19、when tested as specified in 4.7. 3.5.1 Width. Unless otherwise specified (see 6.2), the width shall be 60 inches inclusive of selvages. When cloth has shuttleless loom selvages, the width of the cloth should be as specified (see 6.2) and shall be the minimum width of the woven cloth, excluding the s
20、elvages. 3.6 Finishing. The cloth shall be desized, scoured, dyed, and heat set. The class 1 cloth shall be given a durable antistatic finish (see 6.6), unless otherwise specified (see 3.6.1). Theclass 2 cloth shall be given a durable water repellent treatment (see 3.6.2). The cloth shall be heat se
21、t to meet the requirements of 3.6 and 3.7. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-872b2 83 m b 0508346 9 m MIL-C-87262 TABLE I. Physical requirements. Characteristics Requirements Weave Plain Weight (ounces/yard2) (minimum) 4.8 Yarns
22、 per inch (minimum) warp 66 Filling . 64 Warp 140 Filling . 100 Warp . 8 Filling 6 (minimum) . 60 (maximum) . 100 Breaking Strength (pounds) (minimum) Tearing strength (pounds) (minimum) Air permeability (feet3/minute/feet2 at 1/2-inch water pressure) Flame resistance (FSTM-191-5903) Flaming time (s
23、econds) (maximum) 1 Glow time (seconds) (maximum) 10 Char length (inches) (maximum) (average) .3.00 First burn flaming time (seconds) (maximum) 2 Second burn flaming time (seconds) (maximum) 2 Percent consumed (maximum) (average) . 26 Non-fibrous material (percent) (maximum) 2.0 1/ Flammability Brea
24、k open time (seconds) (minimum) . 80 Moisture content (percent) (minimum) 6.0 Curling . Shall lie flat without distortion and show no evidence of curling (FSTM-191-6906) - pH . 4.0-9.0 2/ - - 1/ - 2/ Including starch and protein matter as well as chloroform and water soluble material. Determined on
25、water extract of finished cloth. 3.6.1 Antistatic properties (class 1). Unless otherwise specified, the class 1 cloth shall be given a durable antistatic finish (see 6.6) so that the maximum resistivity of any one sample before laundering shall be 3.0 XIOu ohms per square and the maximum resistivity
26、 of any one sample after five launderings 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-C-7262 83 m 9999706 0508347 O m MILC-87262 shall be 8.0 X 10l1 ohms per square when tested as specified in 4.7. Only those chemical treatments already a
27、pproved by the appropriate medical service and so listed herein (see 6.6) shall be considered acceptable for the related procurement. If specified, the cloth shall contain 1.0% stainless steel fiber by weight (see 3.3.2 and 6.7). Cloth withstainless steel fiber shallnot be treatedwithantistaticfinis
28、h. Cloth with stainless steel fiber shall meet the post-laundering resistivity requirements when tested as specified in 4.7. 3.6.2 Water repellency (class 2). The class 2 cloth shall be given an approved “Quarpel type” (see 6.8) water repellent treatment and shall conform to the water repellency req
29、uirements of 3.6.2.1 when tested as specified in 4.7. The use of materials other than approved water repellents are prohibited. The cured fabric shall be scoured to remove all unreacted reagents. 3.6.2.1 Spray rating. The results of three individual determinations on the sample unit for spray rating
30、 shall be equal to or better than ratings of 100,100,90 when tested as specified in 4.7. 3.7 Dimensional stability. The cloth shall not shrink more than 4.5 percent in the direction of the warp nor more than 3.0 percent in the direction of the ffing, after fifteen launderings when tested as specifie
31、d in 4.7. The preshrinkage process shall not be identified by name or trademark, either on the cloth or on the ticket or package. 3.8 Seam efficiency. The finished cloth shall have a seam efficiency of not less than 80 percent when tested as specified in 4.7. 3.9 Length and put-up. Unless otherwise
32、specified (see 6.21, the finished cloth shall be furnished in continuous lengths each not less than 60 yards. Each length shall be put-up in full width rolls as specified in PPP-P-1133. 3.10 Fiber identification. Each roll of cloth shall be labeled or ticketedfor fiber content in accordance with the
33、 Rules and Regulations under the Textile Fiber Products-Identification Act. 3.11 Workmanship. The finished cloth shall conform to the quality and grade of product established by this specification. The occurrence of defects shail not exceed the applicable acceptable quality levels. 4. QUALITY ASSURA
34、NCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise spedied in the contract or purchase order, the contractor may use
35、his own or any other facilities suitable for the performance of the inspection requirements 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
36、 supplies and services conform to prescribed requirements. 4.1.1 Responsibility for compliance. All items shall meet all requirements of sections 3 and 6. The inspection set forth in this specifcation shall become a part of the contractors overall inspection system 5 Provided by IHSNot for ResaleNo
37、reproduction or networking permitted without license from IHS-,-,-MIL-C-87262 83 i 9999706 0508148 2 H MILC-87262 or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submi
38、tted to the Government for acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing operations is an acceptable practice to ascertain compliance to requirements, however, this does not authorize submission of known defective material, either indicated or
39、 actual, nor does it commit the Government to accept defective material. 4.1.2 Certificate of compliance, Where certificates of compliance are submitted, the Government reserves the right to check test such items to determine the valiity of the certification. 4.2 Classification of inspections. The i
40、nspection requirements specified herein are classified as follows: a. First article inspection (see 4.4). b. Quality conformance inspection (see 4.6). 4.3 Inspection conditions. Unless otherwise specified, all inspections shall be performed in accordance with the test conditions specified in 4.7. 4.
41、4 First article inspection, The first article inspection shall consist of specified exminations and tests performed on samples of PBUaramid plain weave cloth to determine that the production item conforms to the requirements of this specification. 4.4.1 First article samples. Unless otherwise specif
42、ied, as soon as practical after the award of the contract or order, the manufacturer shall submit three linear yards of the woven cloth for subjection to the examinations and tests specified in 4.4.2. The sample shall be representative of the construction, workmanship, components, and materials to b
43、e used during production. 4.4.2 First article tests. The fxst article sample shall be subjected to tests specified in 4.7. 4.5 Quality conformance inspection. The quality conformance inspection shall consist of the examinations in 4.6.1 through 4.6.2.4 and all the tests required for the cloth for ea
44、ch lot. Sampling for inspection shall be performed in accordance with MIGSTD-106, except where otherwise indicated hereinafter, 4.5.1 Component and material inspection. In accordance with 4.1 above, components and materials shall be tested in accordance with all the requirements or referenced specif
45、ications, drawings, and standards unless otherwise excluded, amended, modified, or qualified in this specifcation or applicable purchase documents. 4.5.2 Examination of the end item. Examination of the end item shall be in accordance with the provisions of 4,6.2.1 through 4.6.2.6. 6 a Provided by IH
46、SNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-C-87262 83 9997906 0508147 4 MIL-C-87262 4.5.2.1 Yard-by-yard examination. Each roll in the sample shall be examined on the face side only and visual defects as defined herein shall be classified as listed in t
47、able II. Ail defects found shall be counted regardless of their proximity one to another except where two or more defects represent a single local condition of the cloth, in which case only the more serious defect shall be counted. A continuous defect shall be counted as one sample unit or eachlengt
48、hwiseyard or fraction thereof in whichit occurs. The sample unit for this examination shall be one linear yard. The sample size shall be in accordance withInspection Level II ofMlL-sTD-105. The Acceptable Quality Level (AQL) shall be 2.5 major defects and 6.5 total defects per 100 units (yards). The
49、 total size shall be expressed in units of onelinear yard. An approximate equal number of yards shall be examined from each roll selected for yard-by-yard examination. TABLE II. Classification of defects. I Classification Defect Mqjor Minor Any hole, cut, or tear . X End out X Mend . X AbrasionIl . X - Thinplacel/ . X - Seams . X Tightyarnl! . X Smash . X Any slub or slug, more than twice the size of normal yam X Foreign matter 1/ . X Float . X
