HJ 503-2009 in English

本标准规定了测定地表水、地下水、饮用水、工业废水和生活污水中挥发酚的分光光度法。
本标准是对《水质 挥发酚的测定 蒸馏后4-氨基安替比林分光光度法》(GB 7490-87)的修订。

Scope

This standard specifies the 4-aminoantipyrine spectrophotometric method for the determination of volatile phenols in surface water, groundwater, drinking water, industrial wastewater and domestic sewage. Surface water, groundwater and drinking water should be measured by extraction spectrophotometry. The detection limit is 0.0003mg/L, the lower limit of determination is 0.001mg/L, and the upper limit of determination is 0.04mg/L. Industrial wastewater and domestic sewage should be measured by direct spectrophotometry. The detection limit is 0.01 mg/L, the lower limit of determination is 0.04 mg/L, and the upper limit of determination is 2.50 mg/L. For samples with a mass concentration higher than the upper limit of the standard determination, they can be measured after appropriate dilution.