HJ 546-2015 (HJ546-2015)

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HJ 546-2015	English	209	Add to Cart	3 days [Need to translate]	Ambient air. Determination of phosphorus pentoxide. Molybdenum blue spectrophotometric method	HJ 546-2015	Valid	HJ 546-2015

HJ 546-2015
Ambient air.Determination of phosphorus pentoxide.Molybdenum blue spectrophotometric method
National Environmental Protection Standard of the People 's Republic of China
Replacing HJ 546-2009
Determination of ambient air phosphorus pentoxide
Molybdenum blue spectrophotometric method
Ambient air-Determination of phosphorus pentoxide-Molybdenum blue
Spectrophotometric method
2015-12-14 release
2016-02-01 Implementation
Ministry of Environmental Protection
Directory
Preface .ii
1 Scope of application .2
2 normative reference documents
3 Principle of the method
4 interference and elimination
5 reagents and materials 2
6 instruments and equipment 3
7 Sample 4
8 Analysis steps
The results are calculated and expressed
10 precision and accuracy
Quality assurance and quality control
12 Waste treatment
Preface
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 the Prevention and Control of Atmospheric Pollution,
Protection of human health, regulate the ambient air phosphorus pentoxide determination method, the development of this standard.
This standard specifies the determination of phosphorus pentoxide in the ambient air by ascorbic acid-molybdenum blue spectrophotometry.
This standard is for the determination of "ambient air phosphorus pentachloride ascorbate reduction - molybdenum blue spectrophotometry (provisional)" (HJ
546-2009).
This standard was first published in.2009, the original standard drafting unit for the Beijing Environmental Protection Monitoring Center. This time for the first time
The main contents of the amendments and amendments are as follows.
- detection limit, interference and elimination of the method, instrumentation, sample collection, sample preparation and analysis steps
To re-provision;
- increased precision and accuracy;
- Added quality assurance and quality control content;
- Increased waste disposal content.
Since the implementation of the standard date, the original standard "Determination of ambient air phosphorus pentaerythritic acid - molybdenum blue light
(Provisional) "(HJ 546-2009).
This standard is organized by the Ministry of Environmental Protection Science and Technology Standards Division.
The main drafting of this standard. Beijing Environmental Protection Monitoring Center
The standard verification unit. Beijing Chaoyang District Environmental Protection Monitoring Station, Beijing Dongcheng District Environmental Protection Monitoring Station, Beijing
Haidian District Environmental Protection Bureau monitoring station, Beijing Environmental Protection Monitoring Center, Sichuan Industrial Environmental Monitoring and Research Institute and Beijing
Measurement North Detection Technology Co., Ltd.
This standard is approved by the Ministry of Environmental Protection on December 14,.2015.
This standard has been implemented since February 1,.2016.
This standard is explained by the Ministry of Environmental Protection.
Ambient air - Determination of phosphorus pentoxide - Molybdenum blue spectrophotometric method
Warning. the use of sulfuric acid in the experiment is corrosive, the operation should be required to wear protective equipment, to avoid contact with the skin
Skin and clothing. Solution preparation and sample pretreatment should be carried out in a fume hood.
1 Scope of application
This standard specifies the determination of phosphorus pentoxide in the ambient air by ascorbic acid-molybdenum blue spectrophotometry.
This standard is applicable to the determination of phosphorus pentoxide in ambient air.
When the ambient air was 5.0 m3 (standard state) and the sample volume was set to 50.0 ml, the detection limit was 0.20 μg/m3,
The lower limit of determination was 0.80 μg/m3.
2 normative reference documents
The contents of this standard refer to the following documents or their terms. Those who do not specify the date of the reference file, the effective version of the appropriate
For this standard.
Technical specification for manual monitoring of ambient air quality