HJ 585-2010 (HJ585-2010)

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HJ 585-2010	English	339	Add to Cart	3 days [Need to translate]	Water quality. Determination of free chlorine and total chlorine. Titrimetric method using N, N-diethyl-1, 4-phenylenediamine	HJ 585-2010	Valid	HJ 585-2010

HJ 585-2010
Water quality.Determination of free chlorine and total chlorine.Titrimetric method using N, N-diethyl-1, 4-phenylenediamine
National Environmental Protection Standard of the People's Republic
Replace GB 11897-89
Determination of free chlorine and total chlorine in water
N,N-diethyl-1,4-phenylenediamine titration
Water quality-Determination of free chlorine and total chlorine-
Titrimetric method using N,N-diethyl-1,4-phenylenediamine
Released on.2010-09-20
2010-12-01 Implementation
Ministry of Environmental Protection released
Ministry of Environmental Protection
announcement
No. 68 of.2010
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 "environmental air benzene series"
Five standards, such as solid adsorption/thermal desorption-gas chromatography, are considered as national environmental protection standards and are released.
The standard name and number are as follows.
I. Determination of Benzene in Ambient Air Solid Adsorption/Thermal Desorption-Gas Chromatography (HJ 583-2010);
2. Determination of Benzene in Ambient Air Activated Carbon Adsorption/Carbon Disulfide Desorption - Gas Chromatography (HJ 584-2010);
4. Determination of free chlorine and total chlorine in water - N,N-diethyl-1,4-phenylenediamine spectrophotometric method (HJ 586-2010);
V. "Determination of water quality atrazine by high performance liquid chromatography" (HJ 587-2010).
The above standards have been implemented since December 1,.2010 and published by the China Environmental Science Press. The standard content can be found on the website of the Ministry of Environmental Protection.
From the date of implementation of the above standards, the following four national environmental protection standards approved and issued by the former National Environmental Protection Agency shall be abolished.
The name and number are as follows.
I. Determination of Air Quality, Toluene, Xylene and Styrene by Gas Chromatography (GB/T 14677-93);
2. Determination of Air Quality Styrene by Gas Chromatography (GB/T 14670-93);
3. Determination of free chlorine and total chlorine in water. N,N-diethyl-1,4-phenylenediamine titration method (GB 11897-89);
4. Determination of free chlorine and total chlorine in water quality N,N-Diethyl-1,4-phenylenediamine spectrophotometric method (GB 11898-89).
Special announcement.
September 20,.2010
Content
Foreword..iv
1 Scope..1
2 Normative references..1
3 Terms and Definitions.1
4 principle of the method..2
5 interference and elimination. 2
6 reagents and materials. 2
7 instruments and equipment.4
8 samples.4
9 Analysis steps..4
10 Results calculation and representation 5
11 Precision and Accuracy 5
12 Notes 6
Appendix A (normative appendix) Determination of three forms of combined chlorine in monochloramine, dichloramine and nitrogen trichloride..7
Iv
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
This standard is developed for the determination of free chlorine and total chlorine in water.
This standard specifies the determination of free chlorine and total chlorine in landscape water for industrial wastewater, medical wastewater, domestic sewage, intermediate water and sewage regeneration.
N,N-Diethyl-1,4-phenylenediamine titration.
This standard is for the determination of free chlorine and total chlorine in water, N, N-diethyl-1,4-phenylenediamine titration (GB 11897-89)
Revised.
This standard was first published in 1989. The original standard was drafted. Anhui Environmental Monitoring Center, China Academy of Preventive Medicine Environmental Health
Health Monitoring Institute and Anhui Wuhu Environmental Monitoring Center Station. This is the first revision. The main contents of the revision are as follows.
-- Revised the scope of application of the standard;
- Increased method of preservation of samples;
- incre