[inglés] Performance test methods of long tube respirators Jurisdicción China Ańo 1988 Publicado en chino Título original / otro título [chino] Changguan mianju xingneng shiyan fangfa Fuente [inglés] In: Reference Collection of National Occupational Safety and Health Standards 1985-1986, China Standards Publishing Co., Beijing, China, Apr. 1988, p.194-206. Illus. Price: CNY 11.00 (whole volume). Número de referencia GB 6221-86 Descriptores [Principales] China, mascaras de suministro de aire comprimido, pruebas del material [Secundarios] comentario de norma, equipo de protección individual, norma Categoría Riesgos químicos Resumen [inglés] This standard (effective 1 Dec. 1986) describes tests for assessing some performance criteria of airline respirators. They include: leakage, breathing resistance, air-tightness of the low-pressure part, working pressure of the input air valve, soft tube or mid-pressure soft tube, connecting part of the soft tube, and air supply equipment. A commentary is appended which outlines the main tests necessary for evaluating the efficiency of airline respirators. They comprise tests described in this standard (GB 6221-86) and also those in GB 2891.1-82, GB 2891.2-82, GB 2891.4-82, GB 2891.5-82 and GB 2891.6-82; and cover testing of leakage, effective dead space, field of vision, air-tightness of air valves and air resistance. CIS No. 93-26 Número de registro 59516