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GB 24427-2021 (GB24427-2021)

Chinese standards (related to): 'GB 24427-2021'
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GB 24427-2021English175 Add to Cart 0--3 minutes. Auto immediate delivery. Content limitation of mercury, cadmium and lead for zinc anode primary battery GB 24427-2021 Valid GB 24427-2021
GB 24427-2009English319 Add to Cart 3 days Limitation of mercury, cadmium and lead contents for alkaline and non-alkaline zinc manganese dioxide batteries GB 24427-2009 Obsolete GB 24427-2009


   
BASIC DATA
Standard ID GB 24427-2021 (GB24427-2021)
Description (Translated English) Content limitation of mercury, cadmium and lead for zinc anode primary battery
Sector / Industry National Standard
Classification of Chinese Standard K82
Classification of International Standard 29.220.10
Word Count Estimation 10,147
Date of Issue 2021-04-30
Date of Implementation 2021-11-01
Older Standard (superseded by this standard) GB 24428-2009; GB 24427-2009
Administrative Organization Ministry of Industry and Information Technology of the People's Republic of China
Regulation (derived from) National Standard Announcement No. 6 of 2021
Proposing organization Ministry of Industry and Information Technology of the People's Republic of China
Issuing agency(ies) State Administration for Market Regulation, National Standardization Administration


GB 24427-2021: PDF in English
GB 24427-2021
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.220.10
CCS K 82
Replacing GB 24427-2009, GB 24428-2009
Content Limitation of Mercury, Cadmium and Lead for
Zinc Anode Primary Battery
ISSUED ON: APRIL 30, 2021
IMPLEMENTED ON: NOVEMBER 01, 2021
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Terms and Definitions ... 4
4 Standardized Zinc-Silver Oxide, Zinc-Air, Zinc-Manganese Dioxide Button
Batteries ... 5
5 Limit Requirements for Mercury, Cadmium, and Lead Contents in Zinc Anode
Primary Batteries ... 6
6 Test Methods of Mercury, Cadmium and Lead contents in Batteries ... 7
7 Conformity Determination of Mercury, Cadmium and Lead Contents in
Batteries ... 7
8 Marking ... 8
Appendix A (Informative) Size Code Comparison List for New and Old Model
Nomenclature of the Button Batteries ... 9
Content Limitation of Mercury, Cadmium and Lead for
Zinc Anode Primary Battery
1 Scope
This document specifies the limit requirements, inspection methods, and conformity
determination requirements for mercury, cadmium and lead contents in standardized
zinc-manganese dioxide batteries, zinc-silver oxide batteries, and zinc-air batteries.
This document is applicable to the production, testing and acceptance of standardized
zinc-manganese dioxide batteries, zinc-silver oxide batteries, zinc-air batteries and
batteries composed of multiple single cells.
2 Normative References
The following documents are essential to the application of this document. For the
dated documents, only the versions with the dates indicated are applicable to this
document; for the undated documents, only the latest version (including all the
amendments) is applicable to this document.
GB/T 8897.1 Primary Batteries - Part 1: General
GB/T 8897.2 Primary Batteries - Part 2: Physical and Electrical Specifications
GB/T 8897.3 Primary Batteries - Part 3: Watch Batteries
GB/T 20155 Determination of Mercury, Cadmium and Lead in Battery
3 Terms and Definitions
For the purpose of this document, the following terms and definitions apply.
3.1 Primary cell
The basic functional unit of the power supply that is designed according to the non-
chargeable design and directly converts chemical energy into electrical energy.
NOTE: It consists of electrodes, electrolytes, containers, terminals, and usually an isolation
layer.
3.2 Primary battery
A battery that is composed of one or more single primary cells equipped with necessary
devices (such as housing, terminal, sign and protection device).
3.3 Button battery
A cylindrical battery with a total height smaller than its diameter, resembling a button
or coin.
3.4 Small button battery
Button battery with a mass of less than 1g.
3.5 Mercury-free battery
Button battery with mercury content no greater than 5μg/g, and other batteries with
mercury content no greater than 1μg/g.
3.6 Cadmium-free battery
Battery with cadmium content no more than 20μg/g.
3.7 Lead-free battery
Battery with lead content no more than 40μg/g.
3.8 Zinc anode primary battery
Primary battery that takes zinc as the anode, includes but not limited to zinc-
manganese dioxide batteries, zinc-silver oxide batteries, and zinc-air batteries.
4 Standardized Zinc-Silver Oxide, Zinc-Air, Zinc-
Manganese Dioxide Button Batteries
4.1 Zinc-silver oxide button batteries
Zinc-silver oxide button batteries standardized in GB/T 8897.2 include SR41, SR42,
SR43, SR44, SR48, SR54, SR55, SR57, SR58, SR59, SR60, SR62, SR63, SR64,
SR65, SR66, SR67, SR68, SR69 batteries.
Zinc-silver oxide button batteries standardized in GB/T 8897.3 include SR516, SR521,
SR527, SR614, SR616, SR621, SR626, SR712, SR714, SR716, SR721, SR726,
SR731, SR736, SR754, SR916, SR920, SR927, SR936, SR1126, SR1130, SR1136,
SR1142, SR1154 batteries.
--- If the mercury, cadmium, and lead contents of one sample battery are higher
than the limit requirements in Table 1, while that of the other sample battery is
lower than the limit requirements in Table 1, then another two sample batteries
are retested. If there is still sample battery fails to meet the requirements in the
second time, it shall be determined that the mercury, cadmium and lead contents
do not meet the requirements.
7.3 The battery mass is less than 1g (small button battery)
Two sample batteries are tested each time; and each sample batteries are composed
of several batteries with a mass of no more than 1g. The judgment shall be carried out
according to 7.2.
8 Marking
8.1 Identification
It shall be according to the marking requirements in GB/T 8897.1.
8.2 Identification of hazardous substances
8.2.1 Identification of mercury content
When the mercury content of button batteries is no more than 5μg/g, and the mercury
content of other batteries is no more than 1μg/g, it can be marked as "mercury-free
battery".
8.2.2 Identification of cadmium content
When the cadmium content of the battery is no more than 20μg/g, it can be marked as
"cadmium-free battery".
8.2.3 Identification of lead content
When the lead content of the battery is no more than 40μg/g, it can be marked as
"lead-free battery".
8.2.4 Identification of multi-component hazardous substance
If it meets the hazardous substance limit requirements in 8.2.1 and 8.2.2 at the same
time, it can be marked as "mercury-free and cadmium-free batteries"; if it meets the
hazardous substance limit requirements in 8.2.1 and 8.2.3 at the same time, it can be
marked as "mercury-free and lead-free batteries"; if it meets the hazardous substance
limit requirements in 8.2.1, 8.2.2 and 8.2.3 at the same time, it can be marked as
"mercury-free, cadmium-free and lead-free batteries".
......