Steps to Control (cont) 控制步骤（续） - OHLearning.PPT

*. W505 – Control of Hazardous Substances ? 2008 University of Wollongong and BP International Limited An Overview of the Control of Hazardous Substances有害物质控制概述 Introduction 介绍 Need to fully understand all the risks how workers may be exposed before any control options 在考虑可控选项之前，需要充分了解所有风险以及工人们可能会处在怎样的风险环境中 Need to find out exactly what is causing the exposure需要找出导致发生风险的确切因素 How is the substance coming into contact with workers -- consider all routes有害物质是怎样接触到工人的－考虑所有途径 Introduction (cont) 介绍（续） Example 例如： Emptying a sack of powder into a hopper将一袋粉状物质全部倒入漏斗中 Tempting to just control airborne exposure from sack emptying尝试仅控制倾倒过程中倾倒物在空中散布的情况 Is this all that should be considered?这就是所有应考虑的因素吗？ Introduction (cont) 介绍（续） Other sources 其它来源 Handling of empty sack to reduce bulk can generate significant clouds of dust 处理空袋子以减少剩余散状物可能产生的巨大尘云 Other issues 其它方面 Is skin contact an issue? 存在皮肤接触的情况吗？ Is RPE in use is it appropriate for contaminant?使用了呼吸器官防护用具（RPE）吗？该用具适用于污染物吗？ Is the thermal environment and issue? 存在热环境的情况吗？ Are there any ergonomic issues? 需要进行人体工学问题的研究吗？ Introduction (cont) 介绍（续） It is only after you have a full understanding of the issues will you have a chance of implementing a successful control strategy只有在充分理解这些问题之后，你们才有可能成功实施控制策略。 Remember: your most important tools in developing a successful control strategy are your eyes ears记住：要成功地制定出控制策略，其最重要的工具就是你们的眼睛和耳朵。 When Evaluating a Situation 现状评估 Look at what is happening 观察正在发生的情况 How does the process operate?这些过程是怎样发展的？ What do the workers actually do?工人们实际在做什么？ Look for unexpected or other tasks 寻找意想不到的目标或其它目标 Periodic cleaning or maintenance定期清洁或定期维护 Opening containment vessels for inspections打开容器盖以备检查 When Evaluating a Situation (cont)现状评估（续） Look at the way the contaminants are generated观察污染物产生的方式 Leakage, handling of empty containers泄漏、处理空容器时 Machinery movement causing dust or vapour clouds机器的运转引起粉尘或蒸气云时 Cross drafts 交叉气流