On March 17, 2023, a series of standards GB/T 5750-2023 "Standard Test Methods for Drinking Water" was approved by the State Administration for Market Regulation (National Standardization Administration), replacing the 16-year-old GB/T 5750-2006 "Standard Test Method for Drinking Water". The new standard will be officially implemented on October 1, 2023.

The GB/T 5750-2023 standard lasted for 5 years. After 3 rounds of soliciting opinions, 280+ units participated in the development and verification, and more than 500 industry experts participated in the revision of GB/T 5750, and finally it was done. The main features of this revision: greatly increase the high-throughput analysis method; greatly expand the application scope of mass spectrometry; focus on strengthening the detection method with a high degree of automation; further strengthen the people-oriented concept of standard making; fully reflect the matching of method standards and forward-looking. This website also pays attention to the latest developments of GB/T 5750-2023 in real time, and releases the latest news as soon as possible to feed the testing colleagues. Last month, we released for the first time: "GB/T 5750-2023 Standard Test Method Series Standards for Drinking Water—to be officially implemented on October 1" has attracted the attention of peers.

This time, the editor also collected the official version of the full text of GB/T 5750-2023 "Standard Test Methods for Drinking Water" for the first time. The following content is for learning purposes only. If necessary, please purchase the paper version.

1. GB/T 5750.1-2023 "Standard Test Methods for Drinking Water Part 1: General Rules"

This document replaces GB/T 5750.1—2006 "General Rules for Standard Test Methods for Drinking Water". Compared with GB/T 5750.1—2006, except for structural adjustment and editorial changes, the main technical changes are as follows:

a) The terms and definitions of "minimum detection mass", "minimum detection mass concentration" and "total minimum detection mass concentration" have been added (see 3.5, 3.6, 3.7);

b) Deleted the term and definition of "reference solution" (see 3.5 of the 2006 edition);

c) Added the report of test results (see Chapter 5);

d) Delete the provision that the first method is the arbitration law in the standard inspection method (see 4.1 of the 2006 edition):

e) The water requirements for experiments have been changed (see Chapter 7, Chapter 6 of the 2006 edition);

f) Added the preparation and use of alkaline potassium permanganate washing solution (see 8.2.2).

Download GBT 5750.1-2023 Part 1: General Provisions.pdf

2. GB/T 5750.2- 2023 "Standard Test Methods for Drinking Water Part 2: Collection and Preservation of Water Samples"

This document replaces GB/T 5750.2-2006 "Standard Examination Methods for Drinking Water - Collection and Preservation of Water Samples". Compared with GB/T 5750.2-2006, except for structural adjustment and editorial changes, the main technical changes are as follows:

a) Changed the "Precautions" (see 4.12, 7.1.3 of the 2006 edition);
b) Changed the sampling volume of routine indicators and extended indicators of drinking water (see Table 1, Table 1 of the 2006 edition); changed the storage method of sampling containers and water samples (see Table 2, Table 2 of the 2006 edition).

Download: GBT 5750.2-2023 Part 2: Collection and Preservation of Water Samples.pdf

3. GB/T 5750.3- 2023 "Standard Test Methods for Drinking Water Part 3: Water Quality Analysis and Quality Control"

This document replaces GB/T 5750.3-2006 "Standard Examination Methods for Drinking Water - Quality Control of Water Quality Analysis". Compared with GB/T 5750.3-2006, except for structural adjustment and editorial changes, the main technical changes are as follows:
a) Added terms and definitions (see Chapter 3);
b) Changed the quality control requirements (see Chapter 4, Chapter 3 of the 2006 edition);
c) The detection limit of the titration method is increased (see 6.4);
d) Changed the calibration and regression (see 6.6, Chapter 5 of the 2006 edition);
e) The quality control method of "proficiency testing" has been added (see 7.6);
f) The report of measurement results has been changed (see Chapter 9, 9.1 of the 2006 edition).

Download: GBT 5750.3-2023 Part 3: Water Quality Analysis Quality Control.pdf

4. GB/T 5750.4-2023 "Standard Test Methods for Drinking Water Part 4 Sensory Properties and Physical Indexes"

This document replaces GB/T 5750.4-2006 "Standard Examination Methods for Drinking Water - Sensory Properties and Physical Indicators". Compared with GB/T 5750.4-2006, except for structural adjustment and editorial changes, the main technical changes are as follows:
a) Added "Terms and Definitions" (see Chapter 3);
b) Added 6 inspection methods (see 6.2, 6.3, 12.2, 12.3, 13.3, 13.4);
c) One test method has been deleted (see 9.2 of the 2006 edition).

Download: GBT 5750.4-2023 Part 4 Sensory status and physical indicators.pdf

5. GB/T 5750.5-2023 "Standard Test Methods for Drinking Water Part 5: Inorganic Non-metallic Indicators"

  This document replaces GB/T 5750.5-2006 "Standard Examination Methods for Drinking Water - Inorganic Non-metallic Indicators". Compared with GB/T 5750.5-2006, except for structural adjustment and editorial changes, the main technical changes are as follows:
a) Added "Terms and Definitions" (see Chapter 3);
b) Added 8 inspection methods (see 7.3, 7.4, 11.4, 11.5, 13.4, 14.1, 14.2, 14.3);
c) Two inspection methods have been changed (see 9.1, 13.1, 6.1, 11.1 of the 2006 edition);
d) Changed the names of 3 indicators, including "nitrate nitrogen" changed to "nitrate (calculated as N)", "ammonia nitrogen" changed to "ammonia (calculated as N)", "nitrite nitrogen" changed to "Nitrite (calculated as N)" (see Chapter 8, Chapter 11, Chapter 12, Chapter 5, Chapter 9, Chapter 10 of the 2006 edition);
e) Deleted 5 inspection methods (see 3.5, 5.4, 6.2, 8.1, 11.4 of the 2006 edition).

Download: GBT 5750.5-2023 Part 5: Inorganic non-metallic indicators.pdf

6. GB/T 5750.6-2023 "Standard Examination Methods for Drinking Water Part 6: Metal and Metalloid Indicators"

  This document replaces GB/T 5750.6-2006 "Standard Examination Methods for Drinking Water - Metal Index". Compared with GB/T 5750.6-2006, except for structural adjustment and editorial changes, the main technical changes are as follows:
a) Added "Terms and Definitions" (see Chapter 3);
b) Added 10 inspection methods (see 9.5, 9.6, 10.5, 13.2, 28.1, 28.2, 28.3, 29.1, 30.1, 30.2);
c) One inspection method has been changed (see 4.5, 1.5 of the 2006 edition);
d) Deleted 13 inspection methods (see 4.2.2, 4.2.3, 4.2.4, 5.2, 5.4, 6.4, 7.4, 7.5, 9.3, 11.3, 11.4, 17.1, 20.3 of the 2006 edition)

Download: GBT 5750.6-2023 Part 6 Indicators of Metals and Metalloids.pdf

7. GB/T 5750.7-2023 "Standard Test Methods for Drinking Water Part 7: Comprehensive Index of Organic Matter"

This document replaces GB/T5750.7-2006 "Standard Examination Methods for Drinking Water - Comprehensive Index of Organic Matter". Compared with GB/T 5750.7 2006, except for structural adjustment and editorial changes, the main technical changes are as follows:
a) Added "Terms and Definitions" (see Chapter 3);
b) Added 3 inspection methods (see 4.3, 4.4, 7.2);
c) Change the indicator "Oxygen consumption" to "Permanganate index (as O2)" (see Chapter 4. Chapter 1 of the 2006 edition).

Download: GBT 5750.7-2023 Part 7: Comprehensive Index of Organic Matter.pdf

8. GB/T 5750.8-2023 "Standard Examination Methods for Drinking Water Part 8: Organic Matter Index"

This document replaces GB/T 5750.8-2006 "Standard Test Methods for Drinking Water - Organic Matter Index" and GB/T 32470-2016 "Test Methods for Odor Substances in Drinking Water - Geosmin and 2-Methylisobutyritol". Among them, the entire content of GB/T 32470-2016 is included in 76.1 of this document. Compared with GB/T5750.8-2006, except for structural adjustment and editorial changes, the main technical changes are as follows:
a) Added "Terms and Definitions" (see Chapter 3);
b) 24 inspection methods have been added (see 4.2, 4.3, 13.1, 15.1, 16.2, 20.1, 48.1, 61.1, 75.1, 75.2, 76.1, 78.1, 78.2, 79.1, 79.2, 80.1, 81.1, 82.1, 83.1, 84.1, 86.1, 88.1, 89.1, 90.1);
c) One test method has been changed (see 21.2, 18.4 of the 2006 edition);
d) Deleted 12 test methods (see 2006 edition 1.1, 3.1, 4.1, 9.2, 12.1, 17.1, 18.1, 18.3, 23.1, 24.1, 37.1, 44.1)

Download: (Compressed) GBT 5750.8-2023 Part 8 Organic Matter Indicators.pdf

9. GB/T 5750.9-2023 "Standard Examination Methods for Drinking Water Part 9: Pesticide Index"

This document replaces GB/T 5750.9-2006 "Standard Examination Methods for Drinking Water - Pesticide Index". Compared with GB/T 5750.9-2006, except for structural adjustment and editorial changes, the main technical changes are as follows:
a) Added "Terms and Definitions" (see Chapter 3);
b) Added 9 inspection methods (see 8.3, 12.2, 13.4, 14.2, 21.2, 25.1, 36.1, 36.2, 41.1);
c) Deleted 5 test methods (see 1.1, 4.1, 9.1, 11.1, 11.2 of the 2006 edition).

Download: GBT 5750.9-2023 Part 9: Pesticide Index.pdf

10. GB/T 5750.10-2023 "Standard Test Methods for Drinking Water Part 10: Indicators of Disinfection Byproducts"

This document replaces GB/T 5750.10-2006 "Standard Examination Methods for Drinking Water - Disinfection By-Product Indicators". Compared with GB/T 5750.10-2006, except for structural adjustment and editorial changes, the main technical changes are as follows:
a) Added "Terms and Definitions" (see Chapter 3);
b) Added 6 inspection methods (see 13.2, 14.2, 15.3, 23.1, 23.2, 23.3); deleted dichloromethane and inspection methods (see 5.1 of the 2006 edition).

Download: GBT 5750.10-2023 Part 10 Disinfection by-product indicators.pdf

11. GB/T 5750.11-2023 "Standard Test Methods for Drinking Water Part 11: Disinfectant Index"

This document replaces GB/T5750.11-2006 "Standard Examination Methods for Drinking Water - Disinfectant Index". Compared with GB/T 5750.11-2006, except for structural adjustment and editorial changes, the main technical changes are as follows:
a) Added "Terms and Definitions" (see Chapter 3);
b) Added 2 inspection methods (see 4.3, 5.1);
c) One inspection method has been changed (see 4.1, 1.1 of the 2006 edition);
d) Changed the name of one indicator, from "free residual chlorine" to "free chlorine" (see Chapter 4, Chapter 1 of the 2006 edition).

Download: GBT 5750.11-2023 Part 11: Disinfectant Indicators.pdf

12. GB/T 5750.12-2023 "Standard Examination Methods for Drinking Water Part 12: Microbial Indicators"

This document replaces GB/T5750.12-2006 "Standard Examination Methods for Drinking Water - Microbial Indicators". Compared with GB/T 5750.12-2006, except for structural adjustment and editorial changes, the main technical changes are as follows:
a) Added 6 inspection methods (see 4.2, 8.2, 9.2, 10.1, 10.2, 11.1).

Download: GBT 5750.12-2023 Part 12: Microbial Indicators.pdf

13. GB/T 5750.13-2023 "Standard Examination Methods for Drinking Water Part 13: Radioactive Indicators"

This document replaces GB/T5750.13-2006 "Standard Examination Methods for Drinking Water - Radioactivity Indicators". Compared with GB/T 5750.13-2006, except for structural adjustment and editorial changes, the main technical changes are as follows:
a) Added "Terms and Definitions" (see Chapter 3);
b) Two inspection methods have been changed (see 4.1, 5.1, 1.1, 2.1 of the 2006 edition);
c) Added 4 inspection methods (see 6.1, 6.2, 7.1, 7.2).

Download: GBT 5750.13-2023 Part 13: Radiation Indicators.pdf