ISO 834:1975/Amd 1:1979
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ISO 834:1975/Amd 1:1979
5198

General information   

  •  :  Withdrawn
     : 1979-04
  •  : 1
     : 1
  •  : ISO/TC 92 Fire safety
  •  :
    13.220.50 Fire-resistance of building materials and elements

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