Packard L H, Brady H L, Schumm O F
Am Ind Hyg Assoc J. 1978 Sep;39(9):723-30. doi: 10.1080/0002889778507841.
A respirator test facility using Refrigerant 12 as a challenge gas has been developed. More than 6000 people have received training in the effective use of mouthpiece respirators. Leakage is determined by the use of a halide detection meter analyzing the exhaled breath. The facilities have been used to provide training and quantitative fit testing for practically all types of respiratory protective equipment. An actual use investigation was made to determine the suitability of the mouthpiece respirator for use in a chlorine producing plant work situation. The mouthpiece respirator was compared with a group of half-face respirators. A clear distinction was made: the half-face respirator offered less protection than the mouthpiece respirator.
已开发出一种使用制冷剂12作为挑战气体的呼吸器测试设施。6000多人接受了使用口件式呼吸器的有效培训。通过使用卤化物检测仪分析呼出的气体来确定泄漏情况。这些设施已用于为几乎所有类型的呼吸防护设备提供培训和定量适合性测试。进行了一项实际使用调查，以确定口件式呼吸器在氯生产厂工作环境中的适用性。将口件式呼吸器与一组半面罩呼吸器进行了比较。结果有明显区别：半面罩呼吸器提供的防护比口件式呼吸器少。
