Standard [CURRENT]
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This document has been partially replaced by NF M88-554:2005-10-01 , NF M88-555-1:1997-09-01; NF EN 976-1:1997-09-01 , NF M88-555-2:1997-09-01; NF EN 976-2:1997-09-01 .
This document has been modified by: NF M88-551:1988-12-01