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GB 44702-2024: Specification for the limitation of harmful substances found in watch casings contacting directly with skin
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| GB 44702-2024 | English | 209 |
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Specification for the limitation of harmful substances found in watch casings contacting directly with skin
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GB 44702-2024
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Basic data | Standard ID | GB 44702-2024 (GB44702-2024) | | Description (Translated English) | Specification for the limitation of harmful substances found in watch casings contacting directly with skin | | Sector / Industry | National Standard | | Classification of Chinese Standard | Y11 | | Classification of International Standard | 39.040.10 | | Word Count Estimation | 10,137 | | Date of Issue | 2024-09-29 | | Date of Implementation | 2025-10-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB 44702-2024: Specification for the limitation of harmful substances found in watch casings contacting directly with skin
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
National Standard of the People's Republic of China
Watch exterior parts that come into direct contact with human skin
Regulations on the Limitation of Hazardous Substances
State Administration for Market Regulation
The National Standardization Administration issued
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"
Drafting is required.
Please note that some of the contents of this document may involve patents.
The institution does not bear responsibility for identifying patents.
This document is proposed and coordinated by the Ministry of Industry and Information Technology of the People's Republic of China.
Introduction
Watches are products that come into direct contact with the skin. Harmful substances in the exterior parts that come into contact with the skin may cause skin damage to the user.
In order to protect the health of consumers and their legitimate rights and interests and facilitate international trade, it is necessary to
Regulations are made to limit the amount of harmful substances in the appearance of watches that are not suitable for the skin, in order to promote the healthy development of the watch industry.
Watch exterior parts that come into direct contact with human skin
Regulations on the Limitation of Hazardous Substances
1 Scope
This document defines the terms for the limits of hazardous substances in watch exterior parts that come into direct contact with human skin (hereinafter referred to as "watch exterior parts")
and definitions, specifies requirements, inspection rules and identification, and describes the corresponding test methods.
This document applies to metals, metal ceramics, leather, plastics, rubber, synthetic sapphire and inorganic glass, fiber
Watch exterior parts made of PVC composite materials.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB 6675.4 Safety of toys Part 4.Migration of certain elements
GB 20400 Limits of Hazardous Substances in Leather and Fur
GB/T 22048 Determination of certain phthalate plasticizers in toys and children's products
GB/T 39560.301 Determination of certain substances in electrical and electronic products Part 3-1.Screening of lead, mercury,
Cadmium, total chromium and total bromine
GB/T 39560.4 Determination of certain substances in electrical and electronic products Part 4.CV-AAS, CV-AFS, ICP-OES and
ICP-MS Determination of Mercury in Polymers, Metals and Electronics
GB/T 39560.5 Determination of certain substances in electrical and electronic products Part 5.AAS, AFS, ICP-OES and ICP-MS
Determination of cadmium, lead, chromium in polymers and electronic components and cadmium and lead in metals by
EN 1811 Reference test method for nickel release from articles that come into direct and prolonged contact with the skin and all components inserted into piercing parts of the human body
Reference test method for release of nickel from all post assemblies which are inserted into pierced
parts of the human body and articles intended to come into direct and prolonged contact with the skin)
EN 12472 Method for the simulation of accelerated wear and corrosion
accelerated wear and corrosion for the detection of nickel release from coated items)
3 Terms and definitions
The following terms and definitions apply to this document.
4 Requirements
4.1 General requirements
4.1.1 Nickel release
The nickel release limit value of metal and metal ceramics (including covering layers) should be less than 0.5 μg/cm2/week.
4.1.2 Limits of other hazardous substances
Leather watch exterior parts should comply with the requirements of GB 20400.The limits of harmful substances in watch exterior parts made of other materials should comply with the requirements of GB 20400.
Comply with the requirements of Table 1.
4.2 Requirements for the appearance of children's watches
4.2.1 Basic requirements
In addition to meeting the requirements of 4.1, the exterior parts of children's watches shall also meet the requirements of 4.2.2 and 4.2.3.
4.2.2 Migratable Elements
The content of migratable elements in the exterior parts of children's watches should not exceed the limit requirements specified in Table 2.
4.2.3 Restricted plasticizers
The content of limited plasticizers in the appearance of children's watches should not exceed the limit requirements specified in Table 3.
5 Test methods
5.1 Determination of nickel release
The samples with covering layer are tested according to the method of EN 12472; other samples are tested according to the method of EN 1811.
5.2 Determination of heavy metal elements
The contents of cadmium, lead and mercury are tested in accordance with the methods of GB/T 39560.301, GB/T 39560.4 and GB/T 39560.5.
5.3 Determination of harmful substances in leather
The test was carried out according to the method of GB 20400.
5.4 Determination of Migratable Elements
The test was carried out according to the method of GB 6675.4.
5.5 Determination of limited plasticizers
The test was carried out according to the method of GB/T 22048.
6 Inspection rules
6.1 Type inspection
Under normal production conditions, type inspection shall be carried out at least once a year, and the type inspection items shall include all the requirements listed in this document.
Type inspection should also be carried out in any of the following cases.
-- Finalization of new products;
--Products are produced in different places;
--The production process and materials have undergone significant changes;
--Resuming production after being suspended for three months or more.
6.2 Determination of test results
If the results of all test items meet the requirements of this document, the product is considered qualified; if one test result does not meet the requirements of this document
requirements, the product is judged as unqualified.
7.Logo
Children's watches and children's watch accessories sold separately should be clearly indicated on labels or other identification materials.
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