SDS

SAFETY DATA SHEET
HTH D.E. FILTER AID
REVISION DATE : 02/18/2016 Page 5 of 10
CRISTOBALITE (SIO2) (14464-46-1)
TWA
0.025 mg/m3
ACGIH (02 2014)
TWA
1.2 millions of
particles per cubic
foot of airThe
exposure limit is
calculated from
the equation,
125/(%SiO2+5),
using a value of
100% SiO2.
Lower values of
% SiO2 will give
higher exposure
limits.
Z3 (2000)
TWA
0.15 mg/m3
The exposure
limit is calculated
from the equation,
15/(%SiO2+2),
using a value of
100% SiO2.
Lower values of
% SiO2 will give
higher exposure
limits.
Z3 (2000)
TWA
0.05 mg/m3
The exposure
limit is calculated
from the equation,
5/(%SiO2+2),
using a value of
100% SiO2.
Lower
percentages of
SiO2 will yield
higher exposure
limits.
Z3 (2000)
QUARTZ (SIO2) (14808-60-7)
TWA
0.025 mg/m3
ACGIH (02 2014)
TWA
2.4 millions of
particles per cubic
foot of airThe
exposure limit is
calculated from
the equation,
250/(%SiO2+5),
using a value of
100% SiO2.
Z3 (2000)