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"The Committee recommends that the standard established

at a weighted average of 5 fibres longer than 5 microns

per cubic centimeter be replaced by a standard corresponding
to a dust concentration level lower than 2 fibres longer

than 5 microns per cubic centimeter (2 f 9 5 u/cc) as an

A i
average, formulated in terms of converging parameters,

inherent and measured according to the method prescribed

in the surveillance program."

MUO eel rae desi never to be exceeded of 0.20 neha: for the asbestos

content in the total respirable dust;

20.....A maximum never to be exceeded of 5 ae of total respirable

dust;

30.....A maximum never to be exceeded of 5 fibres longer than 5 microns

_ per cubic centimeter in the air of the working milieu;

40.....A maximum never to be exceeded of 0.20 noe of total respirable

dust in the air returns or compensation air."