浓度 0.5ppm~5ppm0.5ppm~5ppm含10%1000ppm~30%含100ppm~1% 100ppm~2% 100ppm~200ppm10ppm~100ppm含12ppm12ppm 1ppm~10ppm含1ppm~2000ppm含1ppm~2ppm含1ppm~30ppm含1ppm~5ppm含2000ppm~30%2000ppm~60%lel (2.4%) 2000ppm~60%lel (3%) 2ppm~30ppm含2~5ppm3000ppm~5%含30ppm~1%含30ppm~100ppm含30ppm~2999ppm含30ppm~5%含30ppm~5000ppm含30ppm~60%lel (1.32%) 含30ppm~100ppm含 30ppm~60%lel (1.08%) 含30~5000ppm含3ppm~2000ppm含3ppm~30ppm含3~30ppm含5ppm~1000ppm 含5ppm~10ppm含5ppm~20ppm含5ppm~30ppm含60ppm~80ppm6ppm~10ppm含6ppm~30ppm含800ppb