1、*r . MIL-C-43B42C 83 - 999990b 0575805 b W MIL-C-4 3 842C 11 June 1992 SUPERSEDING MIL-C-43842B 17 Decaber 1986 MILITARY SPECIFICATION This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers flame resistant ar
2、amid oxford cloth. 1.2 Classification. The cloth shall be of the following classes as specified (see 6.2): Class 1 - Colored, aramid blend Class 2 - Woodland camouflage printed, aramid blend Class 3 - Desert camouflage printed (3 color), aramid blend 2. APPLICABLE I3xnmvE 2.1 Government douuments. 2
3、.1.1 Specifications, standards, and handbooks. The following specifica- tions, standads, and handbooks form a part of this document to the extent spxified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specificati
4、ons and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). Beneficial cmnts (recmndations, additions, deletions) and any pertinent data which may be used in improving this document should be addressed to: Center, Natick, MA 01760-5019, by using the Standardization Docume
5、nt Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. U.S. Army Natick Research, Developnt, and Engineering AMs(: N/A FSC 8305 DISTRIJ3IIN STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or network
6、ing permitted without license from IHS-,-,-MIL-C-43842C 83 9994906 05758Ob W MIM-4 3 84 2C SPECIFICATIONS MILJTARY MIW-44100 - Thread, Fara-Aramid, Spun, Intermediate Modulus STANIAFEE FEDERAL FED-STD-4 - Glossary of Fabric Imperfections FED-STD-191 - Textile Test Meth ckitterinesc exceeding that sh
7、am by the standard cample in any of the printed areas will not be acceptable. printed finished cloth shall be 27.25 +1.25 -2.5 inches. The pattern repeat for class 3, 3 color Desert camouflage printed finished cloth shall be 16.75 +1.25 -1.75 inches. execution, a pattern drawing shall be provided, a
8、nd the pattern on the finished cloth shall match that of the drawing (see 2.1.2 and 6.2). ?he pattern rept of the class 2 Woodland camxiflage When the standard cample is not available for pattern 3.6 Spect ral reflectance. 3.6.1 SDEYAEI 1 reflectance, class 1, Sage Green 1590 and Tan 380. The spectr
9、al reflectance vaues for the visible/near infrared wavelength range 600 to 860 nananeters of the Sage Green 1590 and Tan 380 finished cloth shall conform to the requirements specified in table i when tested as specified in 4.4.3. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted
10、 without license from IHS-,-,-MIL-C-43842C 83 9999906 0575810 T i MIN-43842C TABLE: I. si3ectra 1 reflectance requirmts, class 1, Saqe Greer, 1590 an Tan 380 Reflectancevalues kE?rcxm t) Wavelength, Sage Green 1590 Tan 380 Nananeters (nm) Min Max Min Max 600 62 O 640 660 680 700 720 740 760 780 800
11、820 840 8 60 8 8 8 8 10 16 22 30 35 40 45 50 55 60 13 13 13 13 18 28 40 51 61 70 77 81 82 82 - - - - - 25 25 25 26 27 28 30 33 36 - - - - - 53 54 55 56 57 58 59 62 65 3.6.2 Spectra 1 reflectance, class 2. The CpeCtraL reflecrtance values for the visible/near infrared wavelength range 600 to 860 nana
12、neters of the Woodland camouflage printed finished cloth shall confom to the requirementc specified in table II when tested as specified in 4.4.3. TABLE II. SDeCtra 1 reflectance reuuirements, class 2 Reflectance values bera3-1 t) brk Green 355 Wavelength, Black 357 Light Green 354 and BKWI 356 Nanm
13、ters (m) MinMax Min Max Min Max 600 62 O 64 O 660 68 O 700 720 74 O 20 20 20 20 20 20 20 20 - - - - - - - - 6 8 8 8 8 10 18 22 30 18 18 18 18 22 33 45 55 3 10 3 10 3 10 3 12 3 14 5 18 5 25 12 28 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-C-4
14、3842C 83 9999906 0575LL L MILK-43842C TABLE II. Spectra 1 reflectance requirements, class 2 (contd) Reflectance values (t3ene.n t) Dark Green 355 Wavelength, Black 357 fight Green 354 and Brawn 356 Nanometers (nm) MinMax Min Max Min Max 760 780 800 82 O 84 O 860 - 20 35 65 18 36 - 20 40 75 26 44 - 2
15、5 43 80 34 52 - 25 45 86 36 60 25 45 88 36 68 - 25 45 90 36 74 3.6.3 S if any roll (classes 2 arid 3) fails to mat or if any roll (all classes) does not have the same appearance as the standard. 4.4.2.4 Roll identification examination. During the yard-by-yard examination, each roll in the sample sha
16、ll be examined for the defects listed below. contain one or more of the following defects: The lot shall be unacceptable if two or more rolls in the sample Face identification missing frm either or both ends (class 1 only) Face identification on wrong side (class 1 only) Not labeled or ticketed in a
17、ccordance with the adjust to achieve required relative hunidity (see d. above). f. The test specimen and the AAIICC Blue Wool Lightfastness standaid shall be mte on white cardboard. when mxinted test specimen are masked, use test mask approaching zero light transnu ttance. g. nie test shall be conti
18、nued until the energy exposwe is equal to 20 kilojoules per square meter. NOTE: Monitoring of the dry bulb temperature, wet bulb depression, irradiame, and black panel temperature is recommded through the use of chart recorders. 5. PACKAGING 5.1 Put-up and mckaqhq. Put-up and preservation shall be l
19、evel A or ccxrmiercial as specified (see 6.2). 5.1.1 Levels A and CcJmmercial. The cloth shall be put-up and preserved in accordance with the applicable requirerrientC of FED-SD-802. 5.2 Packinq. Packing shall be level A, BI or Ccanmercial as specified (see 6.2). a 5.2.1 evels A, B, and Commercial.
20、Ihe cloth shall be packed in accordance with the applicable requirements of FlXH3TP802. 5.3 Mar-. or purchase order, shipents shall be -ked in accoxance with the applicable requirerents of FEbsTD-802. In addition to any special marking required by the contract 6. NOIES (This section contains informa
21、tion of a general or explanatory nature that may be helpful, but is not mandatory.) 6.1 Intended use. nie cloth is intended for uce in body armor vests, aircraft seat cushion covers, annord vehicle crewmens cold weather coveralls, and aircrew flying jackets. 17 Provided by IHSNot for ResaleNo reprod
22、uction or networking permitted without license from IHS-,-,-MIL-C-43842C 83 W 9999906 0575822 b = MIM-4 384 2C 6.2 Acquisition requirementc. Acquisition docummts IT(ust specify the following: a. b. C. d. e. f. 4- h. i. Title, number, and date of this specification. Issue of DODISS to be cited in the
23、 solicitation, and if required, Class of cloth required (see 1.2). the specific issues of irdivichal documentS referenced (see 2.1.1 and 2.2). When a first article is required (see 3.1, 4.3, and 6.3). Color required when class 1 is specified (see 3.4.1) Pattern drawing if required (see 3.5). Width o
24、f cloth required (see 3.7.2). Length required if other than specified (see 3.13). Levels of preservation and packing (see 5.1 and 5.2). 6.3 First article. When a first article is required, it shall be inspected and approved under the appropriate prcrvisions of FAR 52.209-4. first article should be a
25、 preproduction sample. The contracting officer should specify the appropriate type of first article and the number of units to be furnished. instructions in acquisition documente regarding arrangements for selection, inspection, and approval of the first article. issuing the hitation for bids or req
26、uest for proposal. 6.5 m. requirementc of this specification. 6.6 Antistatic prowrties. The approval of the antistatic treatment and conductive fiberc is the responsibility of the Natick Ff Wiley and the quantitiesAa*,Ab*,AL* are sample minus standard in Ci- coordinates. The coefficients gll, 2g12,
27、gS2 and g33 are given by the follcwiq equations, where a o and b o represent the CIEIlIB a* and b* values of the standard, c is the &mm tolerance, h is the hue tolerance, and v (for value) is the lightness tolerance: * 19 Provided by IHSNot for ResaleNo reproduction or networking permitted without l
28、icense from IHS-,-,-NIL-C-4384ZC 83 = 9999906 0535824 T MIM-4 3 842C Hue, &roma and Lightness Tolerances for the Woodland Pattern Light Green 354 iXrk Green 355 Brown 356 Black 357 2.26 2.20 1.88 2.70 1.32 1.16 1.30 1.11 1.28 0.74 1.50 1.25 specimens recoding AA vaues less than those listed for each
29、 color in 3.4.4.1 represent acceptable mtches for color to the standard: those specimesic with higher AA vaues are unacceptable. Natick TR-80/036, Investigations to Define Acceptability Tolerance wes in Various Regions of Color Space, E. Allen and B. Yuhas, U.S. Army Natick RD&E Center, Natick, MA 0
30、1760-5019, Sept. 1981, is available from Natick for those interested in writing a software program for the acceptability equation. 6.13 subject term (key word) list*. Aircrew Antistatic Body armor Camouflage Flame resistant woodland pattern 6.14 Qians es from previous issue. me to the extensivenecc
31、of the chaqes, asterisks are not used in this revision to identify changes with respect to the previous issue. 20 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-custodians: Army - GL Navy - Nu Air Force - 99 Review activities: Army-m Navy - AS Air FOIX% - 82 DIA - CT user activities: Navy - MC MIL-C-43842C 83 W 9999906 0575825 I MIGc-43842C Prepring activity: Anny - GL (l?ro-j& 8305-0456) 21 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
