GB/T 41649-2022Determination of formaldehyde release in wooden toys—Flask method (English PDF)
木制玩具中甲醛释放量的测定 烧瓶法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
July 11, 2022
Implementation date
July 11, 2022
Scope
GB/T 41649-2022 is the English-translated version of 木制玩具中甲醛释放量的测定 烧瓶法.
GB/T 41649-2022 describes how the formaldehyde released by wooden toys is measured with the flask method.
A test piece of known mass is hung above water in a closed vessel held at constant temperature; the formaldehyde that escapes is absorbed by the water, and the formaldehyde in the water is then measured by acetylacetone spectrophotometry, the result being expressed in mg/kg.
The document applies to the accessible wood-based panel materials of wooden toys and its limit of quantification is 5 mg/kg. It defines wooden toys and wood-based panels, and requires analytical grade reagents with grade 3 water.
Clause 2 cites GB/T 1931-2009 and GB/T 6682. It was issued on 11 July 2022 and has applied since 11 July 2022.
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Document preview — GB/T 41649-2022
National Standard of the People's Republic of China
- ICS
- 97.200.50
- Classification
- Y 57
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Principles
- 5 Reagents
Foreword
This document is given in accordance with GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents" Drafting of regulations.
1 Scope
This document describes a method for the determination of formaldehyde emissions from wooden toys.
This document applies to accessible wood-based panel materials in wooden toys. The limit of quantification of this method is 5 mg/kg.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.
GB/T 1931-2009 Determination method of wood moisture content
GB/T 6682 Analysis Laboratory Water Specifications and Test Methods
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 Wooden toys
Toys made from natural materials such as wood, bamboo, or synthetic wood.
3.2 Wood-based panels
Using wood or non-wood plant fiber materials as the main raw material, processed into various material units, with (or without) adhesives and other additives Sheets or shaped products made of additives.
Note: Mainly include plywood, particleboard, fiberboard, etc. [Source: GB/T 18259-2018, 2.1]
4 Principles
Hang the test piece of known mass above the water in the airtight container and keep a constant temperature, and the formaldehyde released by the test piece will be absorbed by the water within a certain period of time.
Absorption, the formaldehyde content in water was determined by acetylacetone spectrophotometry, and the test results were expressed in mg/kg.
5 Reagents
5.1 Unless otherwise specified, use only analytical grade reagents. The water is grade 3 water in accordance with GB/T 6682.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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Related Standards
GB/T 1931-2009 — Method for determination of the moisture content of wood
GB/T 6682-1992 — Water for analytical laboratory use--Specification and test methods
GB/T 6682-2008 — Water for analytical laboratory use - Specification and test methods
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