HJ 533-2009 (HJ533-2009)

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HJ 533-2009	English	239	Add to Cart	3 days [Need to translate]	Ambient air exhaust gas. Determination of ammonia. Nesslerreagent spetcrophotometry	HJ 533-2009	Valid	HJ 533-2009

HJ 533-2009
Ambient air exhaust gas.Determination of ammonia.Nesslerreagent spetcrophotometry
National Environmental Protection Standard of the People's Republic
Replace GB/T 14668-93
Determination of ambient air and exhaust ammonia
Nessler reagent spectrophotometry
Ambient air and exhaust gas-Determination of ammonia
-Nessler's reagent spetcrophotometry
Published on December 12,.2009
2010-04-01 Implementation
Ministry of Environmental Protection released
Ministry of Environmental Protection
announcement
No. 77 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 "Ammonia of ambient air and exhaust gas.
The five standards, such as the determination of Nessler's reagent spectrophotometry, are national environmental protection standards and are released.
The standard name and number are as follows.
2. Determination of Ammonia in Ambient Air - Sodium Hypochlorite - Salicylic Acid Spectrophotometry (HJ 534-2009);
3. Determination of Ammonia Nitrogen in Water Quality by Nessler Reagent Spectrophotometry (HJ 535-2009);
4. Determination of Ammonia Nitrogen in Water Quality by Salicylic Acid Spectrophotometry (HJ 536-2009);
V. Determination of Ammonia Nitrogen in Water Quality - Neutralization and Titration (HJ 537-2009).
The above standards have been implemented since April 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 five 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 Ammonia by Nessler Reagent Colorimetric Method (GB/T 14668-93);
2. Determination of Ammonia for Air Quality - Sodium Hypochlorite - Salicylic Acid Spectrophotometry (GB/T 14679-93);
Third, "the determination of ammonium water quality Nessler reagent colorimetric method" (GB 7479-87);
4. Determination of Ammonium in Water Quality by Salicylic Acid Spectrophotometry (GB 7481-87);
V. Determination of Distillation and Titration of Ammonium Water (GB 7478-87).
Special announcement.
December 31,.2009
Content
Foreword..iv
1 Scope..1
2 Method principle..1
3 interference and elimination.1
4 Reagents and materials.1
5 instruments and equipment. 2
6 samples. 2
7 Analysis steps..3
8 result calculation..3
9 Accuracy and precision..4
10 Quality Assurance and Quality Control.4
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"
Health, standard ammonia monitoring methods, the development of this standard.
This standard specifies the Nessler's reagent spectrophotometric method for the determination of ammonia in ambient air and industrial waste gases.
This standard amends the "Air Quality Ammonia Determination of Nessler Colorimetric Method" (GB/T 14668-93).
This standard was first published in.1993, and the original standard drafting unit is the Shanghai Environmental Protection Monitoring Center. This is the first revision. this time
The main contents of the revision are as follows.
-- Added warnings.
-- Increased sampling method and detection limit of 10 ml of absorbent volume.
-- Added quality assurance and quality control provisions, including. no ammonia water check, sampling full blank, reagent preparation and sampling
Precautions, etc.
-- Combine the calculation formula of the result.
As of the date of implementation of this standard, the air quality ammonia test approved and issued by the former National Environmental Protection Agency on October 27,.1993
The Dina reagent colorimetric method (GB/T 14668-93) is abolished.
This standard was formulated by the Science and Technology Standards Department of the Ministry of Environmental Protection.
This standard is mainly drafted by. Shenyang Environmental Monitoring Center S