HJ 503-2009 (HJ503-2009)

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HJ 503-2009	English	339	Add to Cart	3 days [Need to translate]	Water quality. Determination of volatile phenolic compounds. 4-AAP spectrophotometric method	HJ 503-2009	Valid	HJ 503-2009

HJ 503-2009
Water quality.Determination of volatile phenolic compounds. 4-AAP spectrophotometric method
HJ
National Environmental Protection Standard of the People's Republic
Replace GB 7490-87
Determination of volatile phenols in water
4-aminoantipyrine spectrophotometry
Water quality-Determination of volatile phenolic compounds
-4-AAP spectrophotometric method
Released on.2009-10-20
2009-12-01 Implementation
Ministry of Environmental Protection released
Ministry of Environmental Protection
announcement
No. 54 of.2009
In order to implement the "Environmental Protection Law of the People's Republic of China", protect the environment, and protect human health, we now approve the measurement of total organic carbon in water quality.
Six standards, such as the combustion oxidation-non-dispersive infrared absorption method, are national environmental protection standards and are released.
The standard name and number are as follows.
I. Determination of total organic carbon in water by combustion oxidation-non-dispersive infrared absorption method (HJ 501-2009);
2. Determination of brominated volume of volatile phenols in water (HJ 502-2009);
4. Determination of ozone in ambient air - Spectrophotometric method of sodium indigo disulphonate (HJ 504-2009);
V. “Determination of Biochemical Oxygen Demand (BOD5) on the 5th Day of Water Quality Dilution and Inoculation Method” (HJ 505-2009);
6. "Electrochemical Probe Method for Determination of Dissolved Oxygen in Water" (HJ 506-2009).
The above standards have been implemented since December 1,.2009 and published by the China Environmental Science Press. The standard content can be found on the website of the Ministry of Environmental Protection.
The following seven national rings approved and issued by the former National Environmental Protection Agency or the former State Environmental Protection Administration from the date of implementation of the above standards
The environmental protection standards are abolished. The standard names and numbers are as follows.
1. "Measurement of total organic carbon (TOC) for water quality by non-dispersive infrared absorption method" (GB 13193-91);
2. Determination of total organic carbon in water by combustion oxidation-non-dispersive infrared absorption method (HJ/T 71-2001);
3. Determination of volatile phenols in water quality and bromination capacity after distillation (GB 7491-87);
4. Determination of volatile phenols in water - 4-aminoantipyrine spectrophotometric method after distillation (GB 7490-87);
V. Determination of ozone in ambient air - Spectrophotometric method of sodium indigo disulphonate (GB/T 15437-1995);
6. "Determination of the Biochemical Oxygen Demand (BOD5) on the 5th Day of Water Quality Dilution and Inoculation Method" (GB 7488-87);
VII. Determination of Dissolved Oxygen in Water by Electrochemical Probe Method (GB 11913-89).
Special announcement.
October 20,.2009
Content
Foreword..iv
1 Scope..1
2 Normative references..1
3 Terms and Definitions.1
Method 1 Extraction Spectrophotometry
4 method principle..1
5 interference and elimination.1
6 reagents and materials. 2
7 instruments and equipment.3
8 samples.3
9 Analysis steps..3
10 result calculation 4
11 Precision and Accuracy 4
12 Quality Assurance and Quality Control.5
Method 2 Direct spectrophotometry
13 Principle of the method 5
14 Interference and elimination..5
15 Reagents and materials..5
16 Instruments and Equipment..5
17 samples. 5
18 Analysis Step 5
19 result calculation 6
20 Precision and Accuracy 6
21 Quality Assurance and Quality Control.6
Appendix A (Normative) Calibration of phenol stocks 7
Appendix B (informative) 4-Aminoantipyrine purification.8
Foreword
To protect the environment and protect the human body in order to implement the Environmental Protection Law of the People's Republic of China and the Law of the People's Republic of China on Water Pollution Prevention and Control
Health, standardize national environmental pollutant monitoring methods, and develop this standard.
This standard specif