Waste gas from manufacturing process; Determination of chemical oxygen demand and nitrogen oxide; Potassium dichromate oxidation and naphthylethylene diamine colorimetric method

GB 4921-1985 Waste gas from manufacturing process; Determination of chemical oxygen demand and nitrogen oxide; Potassium dichromate oxidation and naphthylethylene diamine colorimetric method
Standard No.:	GB 4921-1985	Status:	VALID remind me the status change Email:
Target Language:	English	File Format:	PDF
Word Count:	2000 words	Translation Price:	60 (USD) remind me the price change Email:
Implemented on:	1985-08-01	Delivery:	via email in 1-3 business day
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Standard No.:	GB 4921-1985
Chinese Name:	工业废气耗氧值和氧化氮的测定重铬酸钾氧化、萘乙二胺比色法
English Name:	Waste gas from manufacturing process; Determination of chemical oxygen demand and nitrogen oxide; Potassium dichromate oxidation and naphthylethylene diamine colorimetric method
Professional Classification:	Z23 Analysis methods for industrial wastewater and pollutants
Professional Classification:	GB National Standard
Issued by:
Issued on:	1985-01-18
Implemented on:	1985-08-01
Status:	VALID
Target Language:	English
File Format:	PDF
Word Count:	2000 words
Translation Price:	60 (USD)
Delivery:	via email in 1-3 business day

GB 4921-1985 The following standards are cited：

GB 4921-1985 Cited by the following standards：