HJ 666-2013.Water quality-Determination of ammonium nitrogen by flow injection analysis (FIA) and Salicylic acid spectrophotometry.1适用范围HJ 666规定了测定水中氨氮的流...
HJ 670-2013.Water quality-Determination of orthophosphate and total phosphorus-Continuous flow analysis(CFA) and Ammonium molybdate spectrophotometry.1适用范围HJ 670规定了测定...
HJ 665-2013.Water quality-Determination of ammonium nitrogen by continuous flow analysis(CFA) and Salicylic acid spectrophotometry.1适用范围HJ 665规定了测定水中氨氮的连...
HJ 681-2013.Electromagnetic environmental monitoring method for AC electric power transmission and distribution project(on trial).1适用范围HJ 681规定了交流输变电工程产生...
HJ 672-2013.Technical Guidelines for Environmental Protection in Coal mining and Processing Projects for Check and Accept Complected Project.1适用范围HJ 672规定了煤炭采选建...
HJ 680-2013.Soil and sedimen-Determination of mercury,arsenic,selenium,bismuth,antimony-Microwave dissolution/Atomic Fluorescence Spectrometry.1适用范围HJ 680规定了测定土壤...
HJ 679-2013.Soil and sediment-Determination of acrolein, acrylonitrile, acetonitrile Headspace-Gas chromatography method.1 适用范围HJ 679规定了测定土壤和沉积物中丙烯...
HJ 678-2013.Water quality-Digestion of total metals-Microwave assisted acid digestion method.1 适用范围HJ 678规定了水中金属总量的微波酸消解预处理方法。HJ 67...
HJ 677-2013.Water quality-Digestion of total metals Nitric acid digestion method.1适用范围HJ 677规定了水中金属总量的硝酸消解预处理方法。HJ 677适用于地表水...
HJ 675-2013.Determination of nitrogen oxide emissions from stationary sources by acid-base titration method.1范围HJ 675规定了测定火炸药生产过程排出的硝烟尾气中氮...
