GB/T 42323-2023Water for lead acid storage battery (English PDF)

Foreword

This document was issued on 17 March 2023 by the State Administration for Market Regulation; Standardization Administration of the PRC and takes effect on 1 October 2023.

It is a GB/T standard: recommended rather than compulsory, but it is the text a Chinese reviewer applies when assessing a submission.

1 Scope

GB/T 42323-2023 covers the water that goes into a lead acid battery — the water used in preparing the plates and in the other stages of making and maintaining a cell. Requirements set out what that water has to be; the test methods clause, by far the longest part of the document, carries the determination behind each requirement and opens at sampling, where five litres are taken in a container first washed repeatedly with the water to be tested, since the container is the easiest way to spoil the sample before it is ever analysed. Inspection rules govern how a lot is judged and released, and a final clause deals with marking, packaging, transportation and storage, including the inspection certificate that has to be fixed where it can be seen on the storage container. Water is the cheapest thing in a battery and one of the most damaging when it is wrong: whatever is dissolved in it stays with the plates for the life of the cell, raising self-discharge and working on the grids, and the loss turns up as capacity missing months later rather than as a batch that fails on the day. Battery manufacturers, water suppliers, plant quality departments and battery maintenance operations are the users.

This document specifies the requirements, test methods, inspection rules, marking, packaging,

transportation and storage of water for lead acid storage batteries.

This document is applicable to water for lead acid storage batteries.

2 Normative References

The contents of the following documents constitute indispensable clauses of this document

through the normative references in the text. In terms of references with a specified date, only

versions with a specified date are applicable to this document. In terms of references without a

specified date, the latest version (including all the modifications) is applicable to this document.

GB/T 601 Chemical Reagent - Preparations of Standard Volumetric Solutions

GB/T 602 Chemical Reagent - Preparations of Standard Solutions for Impurity (ISO 6353-

1:1982, NEQ)

GB/T 603 Chemical Reagent - Preparations of Reagent Solutions for Use in Test Methods (ISO

6353-1:1982, NEQ)

GB/T 9724 Chemical Reagent - General Rule for the Determination of pH (ISO 6353-1:1982,

NEQ)

GB/T 9740 Chemical Reagent - General Method for the Determination of Dry Residue after

Evaporation (ISO 6353-1:1982, NEQ)

GB/T 11446.1 Electronic Grade Water

GB/T 23942 Chemical Reagent - General Rules for Inductively Coupled Plasma Atomic

Emission Spectrometry

3 Terms and Definitions

The following terms and definitions are applicable to this document.

3.1 water for lead acid storage battery

Water for lead acid storage battery refers to water used for lead acid battery plate preparation,

electrolyte preparation, replacement (replenishment) of water lost in electrolyte due to charging