ARMY MIL-C-13621-1954 CLOTH COATED BUTYL RUBBER《丁基橡胶涂层布》.pdf

1、Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-L362L 3 W 7777706 0378543 3 3.2 Materials. 3.2.1 Base cloth.- The base cloth shaU be single ply, first quality, Coatim commund.- The coating compound shall consist of butyl uniform, evenly woven s

2、ilk or qylon. rubber (GR-I), suitably compounded to meet the requirements of this specifica- tion. shaU. be used. Talc shall be used to prevent adhesion within the rolls of uncured cloth and to produce a dull gloss surface during cure. be used to prevent ahesionwithin the roUs of cured cloth when pa

3、ckaged. 3.2.2 No mtural rubber, reclahed rubber, or synthetic rubber other than GR-I Talc shall also 3.3 Manufacture.- The coated cloth shall be manufactured by applying appoximtely th same amount of rubber compound on each side of the base cloth. The surface af -the coated cloth shall be smooth, un

4、iform, and free from bkeaks, bliskers, wriddes, holes, torn selvage or damage. 3.3.1 CO%OP,- The color of %he.coated cloth shall be as specified in the contract, (sZZZiJ. 3*4 Physical. and chemical.- The: coated cloth dbl corFm to table I and table II when tesaed as sgacLfTed fn 44.1 and ke4.2 respe

5、ctLvely, 2 -. -_ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-L362L 3 M 9979906 03785Li4 5 MIL- C- i362 i( C dC ) Table I.- Physical Requirement P roperty _ Thickness 0.003 inqh 0.005 indh Weight (max.) 3.2 OZ. per sq. yd,r/ Breaking strengt

6、h (a.) As received 10 lb. in warp and filling directions After accelerated aging as specified After decorrtaniination as specified 7 lb. in wap arrd filling 10 lb. in warp and filling in 4.4.5 directions in 4.4.6 directions - Tear resistance (min.) As received is0 gm. in warp and filiing directions

7、After accelerated aging as specified After decontamination as specified 100 gm. in warp and filling 150 gm. in warp and filiing in 4.4.5 directions in 4.4.6 directions - - - Hydrostatic resistance No leakage up to 20 p.soi, lt/ Exclusive of weight of talc ( see 3.2.2) . 3 Provided by IHSNot for Resa

8、leNo reproduction or networking permitted without license from IHS-,-,- MIL-C-13621 83 7777706 03785q5 7 Requiremnt p. rope rt y 4 .- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-23622 3 W 7777906 0378546 7 =C- 13621( CI4 Tackiness. 4.4.4.1

9、As received.- Take two strips of the coated cloth, 6 inches long by 3 inches wide for test. Place the two strips to ther so that they coincide hmxidity and weight the strips uniformly over-half their asa with a 31/2 pound weight. This might is equivalent to a pressrare of 56 pounds per square feet.)

10、 96 hows, remove the weight and take the strips from the own, taking care that the strips do not become separated. Place the strips on a smooth horizontal surface and allow them to starad at room temparature for a period of 10 minutes. Place a ed cloth as follows: One strip with the long dimension i

11、n the direction of the warp and one in the direction of the filling. Mount the strips smoothly on flat, sheetr metal, supports, approximatey 7- 1/2 by 21- 1/2 inches. Fasten the supports vertically to the inside face f the rotating cyliner of an accelep ated weathering test unit such as Nationil Car

12、bon Companyt s Model X- 1-A, using CGSS carbons, or equivalent. The top of the sheet metal supports shall be one inch above the top of the rotating frame. Hoid the sheet %etal supports as olose to the rotating frame as the coI.rtoUys of the frame will permit, Expose the samples so mawxted COnfihUoly

13、 for 48 hours to ultxt-violet Light and intemittent water spray fn accordance Hh the raanufacturart EI directions 4.4.6 Deconthiqation process.- Gu% one plgce of coa%ed ci%! %approximately 21 inahes by 21 inches fromthe sample for this test anCa contaminate as follom: Dip- a sor% brush; 1-1/2 inches

14、 wide, io 9 depth of about 1 inch into liqula mustmd (H) conforing this coad cloth dth a prtica position in four gallonu Whsla in this .position, boil the e and dry in ab at room temperature. If a COATED, BUTYL RUBBE3 6. NCrrES 6.1 Intended use.- The coated cloth is intended primarily for use as a d

15、iaphragm material in optical gas mask diaphragm angletubes. 6.2 Ordering data.- Procurement documents should specify the following: a. The title, numbr, an date of this specification. b. Other vesicant agents from which protection is desired. C. The eolor of the coated cloth. 6.3 Mustard resistance.

16、 Because of the extreme dangers involved in handling toxicological warfare agents, and the special equipment required in connection with their use, ail specification tests involving toxicological agents will be performed by the Chemical Corps. quality materiaJ. and operates under a system of qualit

17、y control acceptable to the Ctoverrinrent;, the Government, at its discretion, may modify, in whole or in part, %he sampiing and testing procedures specified herein. However, the Government reserves the right to return at wtime, without previous notice to the contractor to the sampling and testing p

18、rocedures specified in this specification. 6.4 Sampling and testing.- When the contractor consisterrtly produces high Patent notice.- When Government drawings, specifications, or other data are used for Government procurement operation, the United States Government thereby incurs no responsibility n

19、or apy obligation whatsoever; ancl the fact that the Gomrmrst may have formuiated, furnished, or in any way supplied the said drawings, specifications, or other data is not to be regarded by implication or otherwise as in any mmmr licensing the holder or any other person or corporation, or conveybg

20、any rights or permission to manufacture, use, or se11 arig patented invention that may in any way be related thereto. purpose other than in- connection with a definitely related custodian: Other interest: Army - Chemical Corps Arnpr -M Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-