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Hlavní stránka>BS 6997:1990 Specification for elastomeric toroidal sealing rings ('O'-rings) manufactured from acrylonitrile-butadiene rubbers complying with BS 6996
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sklademVydáno: 1990-08-31
BS 6997:1990 Specification for elastomeric toroidal sealing rings ('O'-rings) manufactured from acrylonitrile-butadiene rubbers complying with BS 6996

BS 6997:1990

Specification for elastomeric toroidal sealing rings ('O'-rings) manufactured from acrylonitrile-butadiene rubbers complying with BS 6996

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Označení normy:BS 6997:1990
Počet stran:8
Vydáno:1990-08-31
ISBN:0 580 16650 3
Status:Standard
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BS 6997:1990


This standard BS 6997:1990 Specification for elastomeric toroidal sealing rings ('O'-rings) manufactured from acrylonitrile-butadiene rubbers complying with BS 6996 is classified in these ICS categories:
  • 21.140 Seals, glands

This British Standard specifies requirements for the composition and physical properties of toroidal sealing rings (“O”-rings) manufactured from acrylonitrile-butadiene rubbers complying with BS 6996. The five hardness grades of acrylonitrile-butadiene rubbers used are B0 50, B0 60, B0 70, B0 80 and B0 90 of BS 6996.

NOTE The titles of the publications referred to in this standard are listed on inside back cover.


Requirements for the composition and physical properties of rings of five different hardness values, for use in particular in contact with mineral oils.
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