Datasheet

Product name: DOWSIL™ 744 RTV Sealant White
Revision Date: 11.09.2020
Version: 4.0
Page 5 of 15
Examples of sources of recommended exposure measurement methods are given below or contact
the supplier. Further national methods may be available.
National Institute of Occupational Safety and Health (NIOSH), USA: Manual of Analytical Methods.
Occupational Safety and Health Administration (OSHA), USA: Sampling and Analytical Methods.
Health and Safety Executive (HSE), United Kingdom: Methods for the Determination of Hazardous
Substances.
Institut für Arbeitsschutz Deutschen Gesetzlichen Unfallversicherung (IFA), Germany.
L'Institut National de Recherche et de Securité, (INRS), France.
Derived No Effect Level
Methyltrimethoxysilane
Workers
Acute systemic effects
Acute local effects
Long-term systemic
effects
Long-term local effects
Dermal
Inhalation
Dermal
Inhalation
Dermal
Inhalation
Dermal
Inhalation
0.38
mg/kg
bw/day
25.6
mg/m3
n.a.
n.a.
0.38
mg/kg
bw/day
25.6
mg/m3
n.a.
n.a.
Consumers
Acute systemic effects
Acute local effects
Long-term systemic effects
Long-term local
effects
Dermal
Inhalation
Oral
Dermal
Inhalation
Dermal
Inhalation
Oral
Dermal
Inhalation
0.3
mg/kg
bw/day
6.25
mg/m3
0.26
mg/kg
bw/day
n.a.
n.a.
0.3
mg/kg
bw/day
6.25
mg/m3
0.26
mg/kg
bw/day
n.a.
n.a.
Predicted No Effect Concentration
Methyltrimethoxysilane
Compartment
PNEC
Fresh water
>= 1.3 mg/l
Marine water
>= 0.13 mg/l
Fresh water sediment
>= 1.1 mg/kg
Marine sediment
>= 0.11 mg/kg
Soil
>= 0.17 mg/kg
Sewage treatment plant
> 6.9 mg/l
8.2 Exposure controls
Engineering controls: Use local exhaust ventilation, or other engineering controls to maintain
airborne levels below exposure limit requirements or guidelines. If there are no applicable exposure
limit requirements or guidelines, general ventilation should be sufficient for most operations. Local
exhaust ventilation may be necessary for some operations.
Individual protection measures
Eye/face protection: Use safety glasses (with side shields). Safety glasses (with side shields)
should be consistent with EN 166 or equivalent.
Skin protection
Hand protection: Use chemical resistant gloves classified under Standard EN374:
Protective gloves against chemicals and micro-organisms. Examples of preferred
glove barrier materials include: Butyl rubber. Neoprene. Nitrile/butadiene rubber