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GB/T 33042-2016: Determination of lead, cadmium, chromium, mercury in the surface decorated layer of wooden floor
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 33042-2016 | English | 239 |
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Determination of lead, cadmium, chromium, mercury in the surface decorated layer of wooden floor
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GB/T 33042-2016
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Basic data | Standard ID | GB/T 33042-2016 (GB/T33042-2016) | | Description (Translated English) | Determination of lead, cadmium, chromium, mercury in the surface decorated layer of wooden floor | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B70 | | Classification of International Standard | 79.060.01 | | Word Count Estimation | 12,173 | | Date of Issue | 2016-10-13 | | Date of Implementation | 2017-05-01 | | Regulation (derived from) | National Standard Announcement 2016 No.17 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 33042-2016: Determination of lead, cadmium, chromium, mercury in the surface decorated layer of wooden floor
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Determination of lead, cadmium, chromium, mercuryin the surface
ICS 79.060.01
B70
National Standards of People's Republic of China
Wooden floor finishes in lead, cadmium, chrome and mercury
Determination of heavy metal content
Determination of lead, cadmium, chromium, mercury
2016-10-13 released
2017-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by the State Forestry Administration.
This standard is nationalized by the National Standardization Technical Board for Wood-based Panel (SAC/TC198).
The drafting unit of this standard. Institute of Wood Industry, Chinese Academy of Forestry, Jiangsu Entry-Exit Inspection and Quarantine Bureau, Hubei Province, forest quality
Quality supervision and inspection station, Zhejiang Province, forest product quality inspection station, Zhejiang Liangyou Wood Co., Ltd., Zhejiang sublimation Yunfeng New Material Co., Ltd., deep
China - resistant Wood Industry Co., Ltd.
The main drafters of this standard. Long Ling, Huang Anmin, Zhang Dan, Xu Jianfeng, Li Guangrong, Yang Liu, Ge Xiaohai, Gu Shuxiang, Li Zhigang, Lu Zhigang.
Wooden floor finishes in lead, cadmium, chrome and mercury
Determination of heavy metal content
1 Scope
This standard specifies the use of atomic absorption spectrometry, atomic fluorescence spectrometer, inductively coupled plasma (ICP) atomic emission spectrometer for the determination of wood
Method for the Content of Heavy Metal Elements in Lead, Cadmium, Chromium and Mercury in Texture Floor.
This standard applies to solid wood flooring, solid wood flooring, impregnated paper laminated wood flooring and other wood flooring decorative layer of heavy metal content
Determination.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB/T 6682 Analytical laboratory water specifications and test methods
GB/T 21191 atomic fluorescence spectrometer
JJG015 Inductively Coupled Plasma Atomic Emission Spectrometer Verification Regulation
JJG023 Atomic Absorption Spectrometer Verification Regulation
JJG694 Atomic Absorption Spectrophotometer
3 method summary
3.1 Determination of heavy metal content
Samples by wet or microwave digestion, heavy metal elements transferred to the digestion solution, constant volume to a certain volume. Using flame atomic absorption spectrometry
Determination of lead, cadmium and chromium in the sample solution; determination of lead, cadmium, chromium and mercury in the sample solution by ICP atomic emission spectrometry;
Determination of Mercury in Sample Solution by Atomic Emission Spectrometry or Atomic Fluorescence Spectrometry.
3.2 Determination of soluble heavy metal elements
Under the condition of temperature and time, the soluble heavy metal elements in the sample were extracted with certain acidity hydrochloric acid. Using flame atomic absorption spectrometry
Determination of lead, cadmium and chromium in the sample solution; determination of lead, cadmium, chromium and mercury in the sample solution by ICP atomic emission spectrometry;
Determination of Mercury in Sample Solution by Atomic Emission Spectrometry or Atomic Fluorescence Spectrometry.
4 reagents and materials
4.1 Test water requirements
The water used to meet the requirements of GB/T 6682 above the secondary purity of distilled water or deionized water.
4.2 hydrochloric acid
Density ρ = 1.19g/mL, excellent grade pure.
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