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GB/T 7488-1987 Water quality--Determination of biochemical oxygen demand after 5 days(BOD5)--Dilution and seeding method

Standard Number:  GB/T 7488-1987
Title:  Water quality--Determination of biochemical oxygen demand after 5 days(BOD5)--Dilution and seeding method
Language:  Simplified Chinese
Replaced by Standard:  HJ 505-2009

Publication Date:  1987/3/6
Execute Date:  1987/8/1
Revocatory Date:  2009/12/1
Standard Type:  Method
International Classification for Standards (ICS)ENVIRONMENT. HEALTH PROTECTION. SAFETY>>Water quality
Publisher:  Chinese Standards(GB)
Price:---  
Number of Pages:5P.;A4  

Description:This method is suitable for bod5 is greater than or equal to 2 mg/l and not more than 6000 mg/l water samples. Bod5 is greater than 6000 mg/l water samples can still be used this method, but due to dilution can cause errors, it is necessary to ask for deep description on the determination results. The test results are the result of a biochemistry and chemistry together, they don't like a single, and have a clear definition of chemical process with strict and clear characteristics, but it can Provide indexes used to evaluate the quality of various water samples. This test may be the result of the existence of certain substances by interference, those substances that are toxic for the microorganisms, such as fungicides, toxic metals or free chlorine, inhibits the biochemical role. The algae in the water or high result of denitrifying microorganism can also cause false.  
Cross References:HJ 505-2009
ISO 5815-1983,
  
File Format:  PDF(Acrobat Reader) or Word version doc Document
File Size:  770KB
Tile in English:  Water quality--Determination of biochemical oxygen demand after 5 days(BOD5)--Dilution and seeding method

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