BS EN 943-1:2002 Protective clothing against liquid and gaseous chemicals, including liquid aerosols and solid particles - Part 1: Performance requirements for ventilated and non-ventilated gas-tight (Type 1) and non-gas-tight (Type 2) chemical protective suits

Incorporating Corrigendum № 1. This British Standard is the official English language version of EN 943-1:2002, including Corrigendum June 2005. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 9 October 2002. — 38 p. — ISBN: 0 580 40526 5.
This European Standard specifies the minimum requirements, test methods, marking and information supplied by the manufacturer for the following ventilated and non-ventilated limited use and re-usable chemical protective suits, including component parts such as gloves and boots which can be specified elsewhere.
Type 1 - "gas-tight" chemical protective suit
Type 1a - "gas-tight" chemical protective suit with a breathable air supply independent of the ambient atmosphere, e.g. a self-contained open-circuit compressed air breathing apparatus, worn inside the chemical protective suit.
Type 1b - "gas-tight" chemical protective suit with a breathable air supply, e.g. a self-contained opencircuit compressed air breathing apparatus, worn outside the chemical protective suit.
Type 1c - "gas-tight" chemical protective suit with breathable air providing positive pressure, e.g. air lines.
Type 2 -”non-gas tight” chemical protective suit
"Non-gas-tight" chemical protective suit with breathable air providing positive pressure.