bsen943-1-20xxprotectiveclothingagainstliquidandgaseouschemicalsincludingliquidaerosolsandsol

bsen943-1-20xxprotectiveclothingagainstliquidandgaseouschemicalsincludingliquidaerosolsandsol内容摘要：

ven to the adequate selection of respiratory protective equipment. The limiting factors for the use of respirator filters (. oxygen deficiency) should be taken into consideration. Type 1c gastight chemical protective suit with breathable air providing positive pressure, . air lines. Type 2 ”nongas tight” chemical protective suit Nongastight chemical protective suit with breathable air providing positive pressure. Specifications for total inward leakage test see annex A. Specifications for test methods and performance classification for materials, seams, joins and assemblages see annex B. Specifications for glass paper and glass cloth see annex C. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies (including amendments). EN 136:1998, Respiratory protective devices — Full face masks — Requirements, testing, marking. EN 139:1994, Respiratory protective devices — Compressed air line breathing apparatus for use wi th a full face mask, half mask or mouthpiece assembly — Requirements, testing, marking. EN 270:1994, Respiratory protective devices — Compressed air line breathing apparatus incorporating a hood Requirements, testing, marking. EN 340, Protective clothing — General requirements. EN 368, Protective clothing for use against liquid chemicals — Resistance of materials to peration by liquids. EN 3743, Protective gloves against chemicals and microanisms — Part 3: Determination of resistance to permeation by chemicals. 4 Copyright European Committee for Standardizati on Provided by IHS under license with CEN No reproduction or working permitted without license from IHS Not for Resale `,```,``````,`,`,`,` EN 9431:2020 (E) EN 463, Protective clothing for use against liquid chemicals — Determination of resistance to peration by a jet of liquid (Jet Test). EN 464, Protective clothing for use against liquid and gaseous chemicals, including liquid aerosols and solid particles — Determination of leaktightness of gastight suits (Internal Pressure Test). EN 530, Abrasion resistance of protective clothing material. EN 863, Protective clothing — Mechanical Properties — Test Method — Puncture resistance. EN 12021, Respiratory protective devices – Compressed air for breathing apparatus. EN 132744, Respiratory protective devices — Methods of test — Part 4: Flame tests. prCEN ISO TR 11610, Protective clothing – Glossary of terms and definitions (ISO/DIS 11610:1997). EN ISO 6529, Protective clothing — Protection against chemicals — Determination of resistance of protective clothing materials to permeation by liquids and gases (ISO 6529:2020). EN ISO 7854, Rubber or plastics coated fabrics — Determination of resistance to damage by flexing . EN ISO 90734, Textiles — Test methods for nonwovens — Part 4: Determination of tear resistance. EN ISO 139341, Textiles Tensile properties of fabrics Part 1: Determination of maximum force and elongation at maximum force using the strip method (ISO 139341:1999). EN ISO 139352, Textiles – Seam tensile properties of fabrics and madeup textile articles Part 2: Determination of maximum force to seam rupture using the grab method (ISO 139352:1999). EN ISO 139381, Textiles — Bursting properties of fabrics — Part 1: Hydraulic method for determination of bursting strength and bursting distension. 3 Terms and definitions For the purposes of this European Standard the terms and definitions in prCEN ISO TR 11610 apply. 4 Performance requirements Materials Chemical protective clothing materials shall fulfil all the test requirements given in Table 1 when tested in accordance with the test method specified in . Preconditioning and conditioning shall be carried out in accordance with and as required 5 Copyright European Committee for Standardizati on Provided by IHS under license with CEN No reproduction or working permitted without license from IHS Not for Resale `,```,``````,`,`,`,` EN 9431:2020 (E) Table 1 — Minimum performance requirements of chemical protective clothing materials Clause in annex B Performance requirement Performance level Limited Use Re usable Abrasion resistance 3 3 Flex cracking resistance 1 4 Flex cracking at –30 176。 C (optional) 2 2 Trapezoidal tear resistance 3 3 Tensile strength 3 4 Puncture resistance 2 2 Resistance to permeation by liquids See See Resistance to ignition See See Chemical protective clothing material for which a test method in the above table does not provide a clear measurement endpoint criteria shall be marked NOT APPLICABLE in the test report and in the instructions for use, the reason why the test could not be pleted shall be indicated . where the elasticity of the sample prevents an endpoint in the puncture resistance test. Materials of construction shall not be known to cause skin irritation or have any adverse effect to health. NOTE 1 The material of construction should be as light and as flexible as possible in order to ensure wearer fort as well as providing effective protection. NOTE 2 Material properties are only one element for the determination of wearer fort of protec。