GB/T 42027-2022Gas-phase molecular absorption spectrometer (English PDF)
气相分子吸收光谱仪
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
October 14, 2022
Implementation date
May 1, 2023
Scope
GB/T 42027-2022 is the English-translated version of 气相分子吸收光谱仪.
GB/T 42027-2022 is the Chinese national product standard for gas-phase molecular absorption spectrometers, and fixes their requirements, test methods and inspection rules together with marking, packaging, transport and storage.
Clause 1 applies it to instruments that turn the component being determined in a sample into gaseous molecules through a specific chemical reaction and then measure it quantitatively from the characteristic absorption spectrum of those molecules.
The terms defined on this page are the water analytes such an instrument is used for: nitrate nitrogen, nitrite nitrogen, total nitrogen, ammonia nitrogen and sulfide.
Among the standards it quotes are GB/T 6682, GB/T 11606-2007, GB/T 34065-2017 and HJ 168-2020. It was issued on 14 October 2022 and has applied since 1 May 2023.
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Document preview — GB/T 42027-2022
National Standard of the People's Republic of China
- ICS
- 71.040.10
- Classification
- N 53
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" to be drafted.
1 Scope
This document specifies the requirements, test methods, inspection rules, marking, packaging, transportation and storage of gas phase molecular absorption spectrometers.
This document is suitable for converting the determined components in the analyte into gaseous molecules based on a specific chemical reaction mechanism, and according to the gaseous molecules Gas-phase molecular absorption spectrometer (hereinafter referred to as "instrument") for quantitative detection of characteristic absorption spectrum.
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 191 Packaging, storage and transportation icon marks
GB/T 2829 Periodic inspection counting sampling procedure and table (applicable to the inspection of process stability)
GB/T 6682 Analytical laboratory water specifications and test methods
GB/T 11606-2007 Environmental test methods for analytical instruments
GB/T 13384 General Technical Specifications for Packaging of Mechanical and Electrical Products
GB/T 34065-2017 Safety requirements for analytical instruments
HJ168-2020 Technical Guidelines for the Formulation of Environmental Monitoring Analysis Method Standards
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 Nitrate nitrogen
Nitrogen in water in the form of nitrates.
3.2 Nitrite nitrogen
Nitrogen in water in the form of nitrite.
3.3 Total nitrogen
The sum of dissolved nitrogen and nitrogen in suspended matter in water, including nitrite nitrogen, nitrate nitrogen, inorganic ammonium salts, dissolved ammonia and most organic Nitrogen in nitrogen-containing compounds.
3.4 Ammonia nitrogen
Nitrogen in the form of ammonia or ammonium ions.
3.5 Sulfide
Soluble inorganic sulfides and acid-soluble metal sulfides in water, including soluble H2S, HS-, S2-, and those present in suspended matter soluble sulfides and acid soluble metal sulfides.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 191Graphical symbols marking for handling and storage of packages
- GB/T 2829Sampling procedures and tables for periodic inspection by attributes
- GB/T 6682Water for analytical laboratory use - Specification and test methods
- GB/T 11606-2007Methods of environmental test for analytical instruments
- GB/T 13384General specifications for packing of mechanical and electrical product
- GB/T 34065-2017Safety requirements for analyzers
Similar standards
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Related Standards
GB/T 11606-2007 — Methods of environmental test for analytical instruments
GB/T 13384-2008 — General specifications for packing of mechanical and electrical product
GB/T 191-2025 — Graphical symbols marking for handling and storage of packages
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GB/T 42027-2022
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