BS EN 943-2:2019 pdf download.Protective clothing against dangerous solid, liquid and gaseous chemicals, including liquid and solid aerosols Part 2: Performance requirements for Type 1 (gas-tight) chemical protective suits for emergency teams (ET).
3 Terms and definitions For the purposes of this document, the terms and definitions given in CEN ISO/TR 11610, EN 132 and . EN 943-1, together with the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: ●IEC Electropedia: available at http://www.electropedia.org/ ISO Online browsing platform: available at http://www.iso.org/obp 3.1 Type 1a-ET – gas-tight chemical protective suit for emergency teams (Type 1a-ET suit) Type 1a gas-tight chemical protective suit as defined in EN 943-1:2015+A1:2019 for use by emergency teams 3.2 Type 1b-ET – gas-tight chemical protective suit for emergency teams (Type 1b-ET suit) Type 1b gas-tight chemical protective suit as defined in EN 943-1:2015+A1:2019 for use by emergency teams 3.3 attachment point fixing to the outside of the chemical protective suit to enable equipment required to be ftted EXAMPLE . A torch. 3.4 lifeline attached rope the purpose of which is to help to retrieve and pull someone back to safety Note 1 to entry: This item should not be considered to be a fall-protection device.
4 General performance requirements The gas-tight chemical protective suits Type 1a-ET and Type 1b- ET shall fulfil the requirements of EN 943-1:2015+A1:2019, except for the minimum permeation by chemicals that shall be as specified in this standard. The additional or restrictive requirements of this European Standard shall be fulilled. The performance class requirements given below are the minimum performance requirements. 5 Additional performance requirements 5.1 General The chemical protective clothing shall meet the requirements given in Table 1, when tested in preconditioned condition against the appropriate clause of EN 14325:2018as cited in EN 943-1:2015+A1:2019.Pressure pot end point test described in EN 14325:2018 shall be used for abrasion, flex cracking and flame resistance testing. 5.2 Resistance to permeation by chemicals All chemical protective materials of construction that are required to be tested for resistance to permeation in EN 943- 1:2015+A1:2019 shall be tested for resistance to permeation by the chemicals in Table 2.
AIlI materials of construction shall be tested against the same set of 14 chemicals of Table 2 and shall achieve a result of class 2 or higher. For the remaining chemical, all materials of construction shall achieve class 1 or higher. The choice of the remaining one chemical from Table2 shall be at the discretion of the manufacturer or applicant. If class 2 or higher is not achieved with this one remaining chemical from Table 2 for any material or component part tested, the instructions for use shall identify that for this chemical only limited protection is provided. This requirement does not apply to closures. Specific requirements are given in 6.1. NOTE . The test chemicals identifed above have been selected to represent a range of aggressive chemicals so as to ensure that gas-tight chemical protective suit which meets the requirements of this European Standard will offer protection against a wide range of chemicals (Classes and Properties). However, this approach only provides basic guidance against groups represented by these chemicals and the performance against chemicals other than those listed can only be determined by individual tests. See Annex A. 5.3 Safety footwear Safety footwear ftted to, or worn with a suit shall meet the requirements of EN 15090:2012, type 3.BS EN 943-2 pdf download.