943-1 :2002 (UNI EN 943- 1:2003)
Performance requirements for ventilated and non-ventilated gas-tight (Type 1) and non-gas-tight (Type 2) chemical protective suits
"Gas-tight" chemical protective suit
Type 1-a
with a breathable air supply, independent of the ambient atmosphere (e.g. a self-contained open-circuit compressed air breathing apparatus), worn inside the suit
Type 1-b
with a breathable air supply, independent of the ambient atmosphere (e.g. a self-contained open-circuit compressed air breathing apparatus), worn outside the suit.
Type 1-c
with a breathable air supply assuring positive pressure (e.g. airlines)
“Non gas-tight” chemical protective suit"
Type 2
with a breathable air supply assuring positive pressure (e.g. airlines).
REQUIREMENTS TABLE
LEAK-TIGHTNESS TEST
INWARD LEAK TIGHTNESS
MARKING
Chemical
Marking according to EN 340 – Marking for chemical hazards
Type 1a ET
– EN 943-1:2002
– Type of protective clothing(*)
Information
– The number and date of the relevant European standard if the chemical protective suit is also submitted to tests for additional hazards (e.g. resistance to heat and flames, mechanical impacts, poor visibility)
– year of manufacture and, where appropriate, the date of expiry (it may be on the packaging)
– The “read instructions for use” pictogram
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