1、CLOT : I -. . . .- Table III, Phy sica rewirements of coated cloth _., ; . *_ :r c -I . . ;J. .4:? I . , . . *: ? I 4. ,a P. Requirements Charac t 0r.i 8 tic Type 1 Type II Weight, oz8 e /eq. yd. 6.6+_0.2 - 4.3i0.3 Breaking strength, pounds (minimum) Tearing strength, pound (mialmum) warp 190 85 Fil
2、ling 160 75 WWP 6 3 Filling 5 2 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-83489 83 999b 043bL57 4 , MIL-C-83489 Table III. Phya ical requirements of coated cloth (CONTD) * requirements . . Characteristic me I me bv Abhaaion; lbs. /inch
3、wldth (minimum) Coating to.base cloth Adheion, lbs. /inch width (minimum) Coated surface to coated surface RF bonding - No adhesive Blocking (scale rating) Permeability to Hydrogen liters/sq* meter/24 hrr, at 25OC (aximum) fpungus Water reeist.ance: Condition of coating Air Retention siter exposure
4、* Air Retention Bresking strength pounds (minimum) warp Filling After sccelerated weathering , w=P Filling Aft er ac c elerat ea aging warp Filling Cold temperature air, retention at 25 psig, 65 Bo. 2 5*0 Bo growth No cracking Bo leakage No leakage 180 150 Bo leaks or deformation 30 Bo, 2 5:O lo 6;o
5、wth Bo cracking . Bo leaksge Ho leabage 90 80 75 65 75 65. No leaks or deformation 3A.1 Color I - %ja- 3.4.1.1 The color of the coated fabric shall be specified by the ,. procuring agency (see 6*2). , 3.b01,2 The pigment or Oye shall be free of carbon or metallic particles , ,. 5 Provided by IHSNot
6、for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.4.1.3 Matchinq. The color of the coated side shall match the standard under artificial daylight having a color temperature of . . 7500 Kelvin and shel be CL good approximation to tho shade sample -; under incandescent l
7、ight CLs 2800 Kelvin. . 3.4.1.4 Colorfastness. The coated fabric shall show good colorfastness to light end water. 0 3.5 LeriRth and put-up. Unless otherwise specified, the coated cloth shall be put up on rolls as specified in PPP-P-1136 and ehall be in . one continuous peice of not lpss than 40 yar
8、ds. 3.6 Width. (see Z“jT The minimum width of the coated cloth shall be as spccified 3.7 Fib the cloth, each piece In the clample ahlbe examined for length and F. put-up, Any length found to be lees than the minimum clpccified, or :. more than two yards less than the length marked on the ticket shal
9、l be-. considered a defect with respect to leagbh. continuous piece ahall be conuidcred a defect with respect to put-up. The lot ahall be unacceptable if two or more pieces in the sample ara defective in respect to length or put-up. Any roll not in one 10 : f, Provided by IHSNot for ResaleNo reprodu
10、ction or networking permitted without license from IHS-,-,-. 4,3,2.2.2 Total yardage in sample, the total f the actual length8 of roll8 in the sample is lesa than the total of the lengths marked pn the tickets. 4.3. 3 Examination of phmation for delivery requirements , An to detemine that packaging,
11、 packing and mwking comply wlth Section 5 requirements ofthis specification. 4.4 Testing of the end item, The methods of testing 8pecifled in FED-STD-191 wherever applicable, and as other methods a8 listed in Table VI1 shall be followed, The physicsl, mid chemical.values 8pecified in Section 3, exce
12、pt where otherwise specified, apply to the average of . the determinations made on the ramp18 unit for fest purpbses as.;: . . specified in theappllcsble test methods. AU test reports, shall- contain the nvlUdusl.va3es utilized in expressipg the final results, The ample unit for test purposes rhall
13、be 3 ontlnuoueyard8 fut. a width of the finiihe cdt, The lot size shall be expressed in units of one yard. . The lot #hall-be unacceptable if one or more sample units fail to meet any of the test requirements specified. The rample size hall be as Indicated ia Table IV, The lot shall be unacceptable
14、if9 examination shall be made in accordance wlth the provisions of PFP-P-1136 I .- . . . *. 2, . I Table Vil. Test Methods - Coating compound Polyurethane Identif ioat ion 3.3 . 2 Tensile strength 3.3.201 . . Elongation 3.3.2 e1 , Volume 3.3.2 I-: Coat ea ._ Weight 3.4 5041 Breaking strength 3.4 . 5
15、100 After accelerated aging 3.4 5850 After accelerated weathering 3.4 5804 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-83489 83 9999906 0436L64 1 = 14-834 89 . Requlranent Test Characteristic ref erence Method . Tearing Strength 304 5134
16、 Adhesion of coating 304 Coating to base cloth 5970 . Coatipg to coating 4.4.1 mingus Resistance 508 (Mil. Std. 810) Blocking 3.4 5872 Permeability to hydrogen 3.4 5460. Air Retention 3.4, 4.4.2 Conlt ion of coating 3.4 4.4.8 I *. .I Water Resistance: Air retention after ucposure 3.4 4.4.8 Cold temp
17、erature air retention at 25 Wig 3.4 404.3 A certificate of compliance shall be weeptea for this characteristic. ., I .I ru .4,lAaheslon - Coatine to Coatinq. Ten speciens of the co“sted cloth shall be bated for abbesion. I Each spechn shall be cut 1 inch (plusior 1 t of polyurethane x specific specific gravity of polyurethane Prod ect Humber : 8305-0553 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
