GOST R 12 4 277-2012 Occupational safety standards system Respiratory protective devices Respiratory lung-governed protective device for escape with compressed air half mask and poetho.pdf

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1、 12.4.2772012 . , - . . EN 14529:2005(NEQ) 1 ( )2 3203 29 2012 . 1834-4 EN 14529:2005 . , (EN 14529:2005 Respiratory protective devices Self contained open-circuit compressed air breathingapparatus with half mask designed to include a positive pressure lung governed demand valve for escapepurposes o

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4、r, half mask and positive pressure.Technical requirements. Test methods. Marking 201312011 - , , . , - . :- ;- ;- ;- ;- ;- . .2 : 8.56897 . - . 12.4.1862012 . . . -. . . 12.4.19099 . - . . 12.4.21499 . - . . 12.4.21599 . - . . 1 12.4.2772012 12.4.21699 . - . . 45c1803 12.4.2522009( 138:1994) .- . ,

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