McDermott H J, Hermens G A
Am Ind Hyg Assoc J. 1980 Jul;41(7):489-93. doi: 10.1080/15298668091425121.
Airline respirators and self-contained breathing equipment are tested in a Shell refinery/petrochemical complex before issue and use of a specially designed system. The pressure-demand devices are tested for: adequate positive pressure inside the facemask during rest and inhalation; sufficient airflow during worker inhalation; and proper operation of the mask exhalation valve. Routine testing after cleaning and maintenance indicates that, although most equipment checks out satisfactorily, the system helps to identify problems that could impair performance. Workers also have added confidence in the respiratory protective equipment because of this testing program.
航空呼吸器和自给式呼吸设备在发放和使用前，要在壳牌炼油厂/石化综合设施中通过一个专门设计的系统进行测试。对压力需求装置进行如下测试：休息和吸气时面罩内有足够的正压；工人吸气时有足够的气流；面罩呼气阀运行正常。清洁和维护后的例行测试表明，尽管大多数设备测试结果令人满意，但该系统有助于识别可能影响性能的问题。由于这个测试程序，工人对呼吸防护设备也更有信心。
