SDS

Occupational exposure limit values (Workplace Exposure Limits)
Coun-
try
Name of agent CAS No Identi-
fier
TWA
[ppm]
TWA
[mg/m³]
STEL
[ppm]
STEL
[mg/m³]
Ceiling-C
[ppm]
Ceiling-C
[mg/m³]
Nota-
tion
Source
US quartz 14808-60-7 PEL
(CA)
0.05 r Cal/
OSHA
PEL
US silica, crystalline -
quartz
14808-60-7 PEL 0.05 r 29 CFR
1910.10
00
US silica, crystalline -
quartz
14808-60-7 REL 0.05
(10 h)
r, appx-
A
NIOSH
REL
Notation
appx-A NIOSH Potential Occupational Carcinogen (Appendix A)
appx-D see Appendix D - Substances with No Established RELs
Ceiling-C ceiling value is a limit value above which exposure should not occur
dust as dust
i inhalable fraction
less1silica with less than 1 % free crystalline silica
lowest exposure by all routes should be carefully controlled to levels as low as possible
natural natural
partml particles/ml
r respirable fraction
STEL short-term exposure limit: a limit value above which exposure should not occur and which is related to a 15-minute peri-
od (unless otherwise specified)
TWA time-weighted average (long-term exposure limit): measured or calculated in relation to a reference period of 8 hours
time-weighted average (unless otherwise specified
Relevant DNELs of components of the mixture
Name of substance CAS No Endpoint Threshold
level
Protection goal,
route of exposure
Used in Exposure time
1,2-benzisothiazol-
3(2H)-one
2634-33-5 DNEL 6.81 mg/m³ human, inhalatory worker (industry) chronic - systemic
effects
1,2-benzisothiazol-
3(2H)-one
2634-33-5 DNEL 0.966 mg/kg
bw/day
human, dermal worker (industry) chronic - systemic
effects
Relevant PNECs of components of the mixture
Name of substance CAS No Endpoint Threshold
level
Organism Environmental
compartment
Exposure time
1,2-benzisothiazol-
3(2H)-one
2634-33-5 PNEC 4.03
µg
/
l
aquatic organisms freshwater short-term (single
instance)
1,2-benzisothiazol-
3(2H)-one
2634-33-5 PNEC 0.403
µg
/
l
aquatic organisms marine water short-term (single
instance)
1,2-benzisothiazol-
3(2H)-one
2634-33-5 PNEC 1.03
mg
/
l
aquatic organisms sewage treatment
plant (STP)
short-term (single
instance)
1,2-benzisothiazol-
3(2H)-one
2634-33-5 PNEC 49.9
µg
/
kg
aquatic organisms freshwater sedi-
ment
short-term (single
instance)
1,2-benzisothiazol-
3(2H)-one
2634-33-5 PNEC 4.99
µg
/
kg
aquatic organisms marine sediment short-term (single
instance)
1,2-benzisothiazol-
3(2H)-one
2634-33-5 PNEC 3
mg
/
kg
terrestrial organisms soil short-term (single
instance)
Safety Data Sheet
acc. to 29 CFR 1910.1200 App D
DRYLOK® Original Basement & Masonry Waterproofer
Version number: REV 1.0 Date of compilation: 2020-07-10
United States: en
Page: 6 / 15