HJ 595-2010
Water quality.Determination of the total amount of the color developing agent.169 coupler spectrophotometry
National Environmental Protection Standard of the People's Republic
Determination of the total amount of water color developing agent
169 coupler spectrophotometry
(temporary)
Water quality-Determination of the total amount of the color developing
Agent-169 Coupler spectrophotometry
Released on.2010-10-21
2011-01-01 Implementation
Ministry of Environmental Protection released
Ministry of Environmental Protection
announcement
No. 77 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 measurement of ambient air ozone.
Six standards, such as the fixed ultraviolet photometry, are national environmental protection standards and are released.
The standard name and number are as follows.
1. Determination of ambient air ozone by ultraviolet photometry (HJ 590-2010);
2. Determination of water quality pentachlorophenols by gas chromatography (HJ 591-2010);
3. Determination of water quality nitrobenzene compounds by gas chromatography (HJ 592-2010);
4. Determination of water quality, elemental phosphorus, phosphorus molybdenum blue spectrophotometry (provisional) (HJ 593-2010);
5. Determination of the total amount of water-based developer and its oxides - Iodine-starch spectrophotometry (interim) (HJ 594-2010);
The above standards have been implemented since January 1,.2011 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 three national environmental protection standards approved and issued by the former National Environmental Protection Agency shall be abolished.
The name and number are as follows.
1. Determination of ambient air ozone by ultraviolet spectrophotometry (GB/T 15438-1995);
2. Determination of water quality pentachlorophenols by gas chromatography (GB 8972-88);
3. Determination of Total Nitro Compounds in Industrial Wastewater Gas Chromatography (GB 4919-85).
Special announcement.
October 21,.2010
Content
Foreword..iv
1 Scope..1
2 Normative references..1
3 Terms and Definitions.1
4 method principle..1
5 reagents and materials. 2
6 instruments and equipment.2
7 samples.3
8 Analysis steps..3
9 result calculation..3
10 Notes 4
Appendix A (informative) The type and chemical structure of commonly used color developing agents..5
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 formulated for the health and regulation of the total amount of color developing agents in wastewater.
This standard specifies the 169 coupler spectrophotometric method for determining the total amount of color developing agent in wastewater.
Appendix A of this standard is an informative annex.
This standard was formulated by the Science and Technology Standards Department of the Ministry of Environmental Protection.
This standard was drafted. Beijing Environmental Protection Monitoring Center.
This standard was approved by the Ministry of Environmental Protection on October 21,.2010.
This standard has been implemented since January 1,.2011.
This standard is explained by the Ministry of Environmental Protection.
Determination of the total amount of water-based color developing agents 169 Coupler spectrophotometric method
1 Scope of application
This standard specifies the 169 coupler spectrophotometric method for determining the total amount of color developing agent in water.
This standard applies to the determination of the total amount of color developing agent in the printing wastewater.
When using a 20 mm cuvette with a sample volume of 20.0 ml, the method detection limit is 1.03 × 10−6 mol/L, which is equivalent to p-aminodiethyl