ASD-STAN PREN 2111-1989 Aerospace Series Chloroprene - Rubber (CR) Hardness 60 IRHD《航空航天系列 氯丁二烯橡胶(CR)硬度60 IRHD》.pdf

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1、DRAFT FOR PUBLIC COMMENT Latest date for receipt of comments -hlf i440 a -ttl Technical Committee ACE/25 Rubber and elastomeric materials for aerospace purposes Document DC 90/72845 tis ACE/ 25 Our ref Date 3kD APRlA i(140 BRITISH STANDARD : AEROSPACE SERIES CHLOROPRENE - RUBBER (CR) HARDNESS 60 IRH

2、D (prEN 2117) This draft is now available for public comment and your views and technical comments on it would be appreciated. If you have no specific comments to make but find it generally acceptable it would be helpful if you would notify us accordingly. Suggestions entailing revision of the text

3、should indicate the preferred wording. Please quote the relevant clause number against any comment. The Co-ordination of the requirements of this draft with those of any related standards is of particular importance and you are invited to point out any areas where this may be necessary. All comments

4、 should be sent to the Conmittee Secretary at the Londonf address below. The comments received will be passed to the committee concerned for their consideration; no acknowledgement will normally be sent. M A E ?anyard Requests for further copies of this draft should be sent to: Keynes MK14 6LE. ith

5、an addressed label. Orders not accompanied by a remittance will be subject to a delay. Head Office 2 Park Street London %I4 2BS Telephone 01-629 9000 Telex 266933 BSILON G Head Office 823777 BSIMK G Sales i Test nedia Col urnr, Li ne For test method see EN 2006 method Properties after exposure in test medi a Units 33 70 h/lOOC IS0 1817 I IS0 188 Requirements h/ OC blethod for exposure in accordence with 34 35 36 Vol urne 12 37 12 Mass Permitted vari ation Tensile Of strength initial value Elongation at breck I I I 5 38 39 6 5 40 Hardness i RHD 4 0663SP17 89T8

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