Home / Standards / GB 4918-85 GB 4918-85 Industrial wastewater—Determination of total nitro compounds—Spectrophotometric method 工业废水 总硝基化合物的测定 分光光度法 Standard Type GB ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A