Security Datasheet

Table Of Contents
Occupational exposure limit values (Workplace Exposure Limits)
Country Name of agent Identifier TWA [mg/
m³]
STEL [mg/
m³]
Notation Source
GB dust WEL 4 - r EH40/2005
GB talc WEL 1 - r, no_asb EH40/2005
Notation
i inhalable fraction
no_asb containing no asbestos fibres
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 period (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)
Human health values
Relevant DNELs and other threshold levels
Endpoint Threshold
level
Protection goal,
route of exposure
Used in Exposure time
DNEL 2.16 mg/m³ human, inhalatory worker (industry) chronic - systemic effects
DNEL 3.6 mg/m³ human, inhalatory worker (industry) chronic - local effects
DNEL 43.2 mg/kg bw/
day
human, dermal worker (industry) chronic - systemic effects
Environmental values
Relevant PNECs and other threshold levels
Endpoint Threshold level Environmental compartment
PNEC 598
mg
/
l
freshwater
PNEC 141.3
mg
/
l
marine water
PNEC 31.33
mg
/
kg
freshwater sediment
PNEC 3.13
mg
/
kg
marine sediment
Talkum
United Kingdom: en
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