GB/T 5750.13-2023Standard examination methods for drinking water - Part 13: Radiological indices (English PDF)
生活饮用水标准检验方法 第13部分：放射性指标
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
March 17, 2023
Implementation date
October 1, 2023
Scope
GB/T 5750.13-2023 is the English-translated version of 生活饮用水标准检验方法 第13部分：放射性指标.
GB/T 5750.13-2023 is the Chinese standard "Standard examination methods for drinking water - Part 13: Radiological indices".
Its scope clause reads: This document describes the methods for determination of gross alpha radioactivity concentrations, gross beta radioactivity concentrations, mass concentrations of uranium, and activity concentrations of 226Ra in drinking water and water sources.
This document is applicable to the determination of gross alpha radioactivity concentrations of alpha radionuclides (excluding volatile nuclides under the conditions specified in this document), gross beta radioactivity concentrations of beta radionuclides (excluding volatile nuclides under the conditions specified in this document), mass concentrations of uranium and activity concentrations of 226Ra in drinking water and water sources.
This document may serve as a reference to the determination of gross alpha radioactivity, gross beta radioactivity, uranium and 226Ra in saline and mineralized water. Its clauses include terms and definitions; gross alpha radioactivity.
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Document preview — GB/T 5750.13-2023
National Standard of the People's Republic of China
- ICS
- 13.060
- Classification
- C 51
- Replacing
- GB/T 5750.13-2006
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- Introduction
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Gross alpha radioactivity
- 5 Gross beta radioactivity
- 6 Uranium in drinking water
- 7 226Ra in drinking water
1 Scope
This document describes the methods for determination of gross alpha radioactivity concentrations, gross beta radioactivity concentrations, mass concentrations of uranium, and activity concentrations of 226Ra in drinking water and water sources.
This document is applicable to the determination of gross alpha radioactivity concentrations of alpha radionuclides (excluding volatile nuclides under the conditions specified in this document), gross beta radioactivity concentrations of beta radionuclides (excluding volatile nuclides under the conditions specified in this document), mass concentrations of uranium and activity concentrations of 226Ra in drinking water and water sources. This document may serve as a reference to the determination of gross alpha radioactivity, gross beta radioactivity, uranium and 226Ra in saline and mineralized water.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 5750.1 Standard examination methods for drinking water - Part 1: General principles
GB/T 5750.2 Standard examination methods for drinking water - Part 2: Collection and preservation of water samples
GB/T 5750.3 Standard examination methods for drinking water - Part 3: Water analysis quality control
GB/T 5750.6-2023 Standard examination methods for drinking water - Part 6: Metal and metalloid indices
GB/T 11682 Low background alpha and/or beta measuring instruments
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 5750.1, GB/T 5750.2 and GB/T 5750.3 apply.
4 Gross alpha radioactivity
4.1 Detection method for low background gross alpha
4.1.1 Method and principle
Acidify the water sample, evaporate and concentrate it to convert it into sulfate, evaporate it until the sulfuric acid smokes, and burn it at 350°C. After transferring the residue to the sample tray to make the sample source, conduct immediately gross alpha measurement. Calculate the activity concentration of gross alpha radioactivity in water by measuring alpha standard source calibration. For this method, there are three measurement methods available: effective thickness method, comparison method and thick source method, see 4.1.8.1, 4.1.8.2 and 4.1.8.3 for details.
For this method, the detection limit depends on the amount of inorganic salts in water sample, counting efficiency of the instrument, background count rate, counting time and other factors, which is about 0.02Bq/L.
4.1.2 Reagents
Unless otherwise specified, the reagents shall all be analytically pure agents complying with the national standard, and the water for test shall be deionized water or distilled water. There shall be no significant difference between the radioactive background counts of all reagents and those of instruments.
4.1.2.1 Nitric acid (HNO3)
rho20=1.42g/mL, [omega(HNO3)=65%].
4.1.2.2 Nitric acid solution
measure 100mL of nitric acid and dilute it to 200mL.
4.1.2.3 Sulfuric acid (H2SO4)
rho20=1.84g/mL.
4.1.2.5
Anhydrous ethanol (CH3CH2OH).
4.1.2.6 Calcium sulfate (CaSO4)
guaranteed reagent. Some calcium salts may contain trace 226Ra and/or 210Pb, and it shall be verified that the calcium salts do not contain alpha radionuclides.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 22 pages — is available in the English PDF.
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Editions of GB/T 5750.13
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 5750.13-2023 | Standard examination methods for drinking water - Part 13: Radiological indices | current edition | Current |
| GB/T 5750.13-2006 | Standard examination methods for drinking water - Part 13: Radiological indices | previous edition | Superseded |
This page sells the current edition, GB/T 5750.13-2023. Earlier editions are listed for reference only.
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Related Standards
GB/T 5750.10-2006 — Standard examination methods for drinking Water -- Disinfection by-products parameters
GB/T 5750.10-2023 — Standard examination methods for drinking water—Part 10: Disinfection by-products indices
GB/T 5750.11-2023 — Standard examination methods for drinking water—Part 11: Disinfectants indices
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