焊接和相关工艺中使用的防护服

[中文适用范围]： 本文件规定了防护服的最低安全要求和测试方法，防护服包括头罩、围裙、袖子和绑腿，用于保护佩戴者的身体，包括头部（头罩）和脚部（绑腿），并在焊接和具有类似风险的相关工艺过程中穿戴。为了保护佩戴者的头部和脚部，本文件仅适用于头罩和绑腿。本文件不涵盖脚部、手部、面部和/或眼睛保护装置的要求。这种防护服旨在保护佩戴者免受以下危害： — 2 个风险等级的飞溅（少量熔融金属飞溅）、与火焰的短时间接触、焊接和相关工艺中使用的电弧辐射热， — 焊接和相关工艺过程中产生的 3 个风险等级的有害人工光辐射（UV-A、UV-B 尤其是 UV-C），以及 — 最大限度地降低因短时间意外接触电压高达约 100 V 直流的带电导体而触电的可能性。在正常焊接条件下。汗水、污垢或其他污染物会影响对短期意外接触这些电压的带电电导体所提供的保护水平。主要的手工焊接工艺被举例说明，并根据最大有效发射总辐照度分为工艺组，该最大有效发射总辐照度已通过测量确定并评估了这些类型的焊接工艺。为了对焊工可能面临的风险提供充分的整体保护，还应穿戴其他标准涵盖的个人防护设备 (PPE) 来保护头部、面部、手和脚。本文件不适用于激光焊接工艺（相干、单色辐射源）。附件 B 详细介绍了为不同焊接活动选择防护服的指南。 [外文原描述]： This document specifies minimum safety requirements and test methods for protective clothing including hoods, aprons, sleeves, and gaiters that are designed to protect the wearer's body including head (hoods) and feet (gaiters) and that are to be worn during welding and allied processes with comparable risks. For the protection of the wearer’s head and feet, this document is only applicable to hoods and gaiters. This document does not cover requirements for feet, hand, face, and/or eye protectors. This type of protective clothing is intended to protect the wearer against the following hazards: — spatter (small splashes of molten metal) in 2 risk levels, short contact time with flame, radiant heat from an electric arc used for welding and allied processes, — harmful artificial optical radiation (UV-A, UV-B and especially UV-C) in 3 risk levels generated during welding and allied processes and — minimizes the possibility of electrical shock by short-term, accidental contact with live electrical conductors at voltages up to approximately 100 V d. c. in normal conditions of welding. Sweat, soiling, or other contaminants can affect the level of protection provided against short-term accidental contact with live electric conductors at these voltages. The main manual welding processes are exemplified and are classified into process groups according to the maximum effectively emitted total irradiance, which has been determined and evaluated by measurement for these types of welding processes. For adequate overall protection against the risks to which welders are likely to be exposed, personal protective equipment (PPE) covered by other standards should additionally be worn to protect the head, face, hands, and feet. This document is not applicable for laser welding processes (coherent, monochromatic radiation sources). Guidance for the selection of protective clothing for different welding activities is detailed in Annex B.