This standard is intended to describe the origins of the units used in the standards relating to measurement of smoke by optical methods, and any relationships between the units.Cross References:BS 476:Part 33:1993BS ISO 5659-2:1994BS 6401:1983BS 6853:1987BS 7622ISO 9705:1993 ASTM E 1354:1994
BS 7904:1998
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Guide to smoke measurement units. Their basis and use in smoke opacity test methods
BSI Group , 01/15/1998
Pages: 16
