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SN/T 1796-2006: Determination of arsenic, chromium, copper in wood and wood-based products for import and export. Inductivly coupled plasma atomic emission spectrometry
Status: Valid
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Determination of arsenic, chromium, copper in wood and wood-based products for import and export. Inductivly coupled plasma atomic emission spectrometry
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SN/T 1796-2006
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PDF similar to SN/T 1796-2006
Standard similar to SN/T 1796-2006 LY/T 2407 GB/T 30762 Basic data | Standard ID | SN/T 1796-2006 (SN/T1796-2006) | | Description (Translated English) | Determination of arsenic, chromium, copper in wood and wood-based products for import and export. Inductivly coupled plasma atomic emission spectrometry | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | B60 | | Classification of International Standard | 79-010 | | Word Count Estimation | 7,714 | | Date of Issue | 2006-08-28 | | Date of Implementation | 2007-03-01 | | Quoted Standard | GB/T 602; JJG 015; BS EN212 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the inductively coupled plasma atomic emission spectrometry in the import and export of wood and wood products as arsenic, chromium, copper approach. This standard applies to wood and wood products import and export of arsenic, chromium, copper determination. Determination of arsenic range: 20. 0mg/kg ~ 2000mg/kg, chromium, copper measuring range: 10. 0mg/kg ~ 2000mg/kg. | SN/T 1796-2006: Determination of arsenic, chromium, copper in wood and wood-based products for import and export. Inductivly coupled plasma atomic emission spectrometry
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Determination of arsenic, chromium, copper in wood and wood-based products for import and export. Inductivly coupled plasma atomic emission spectrometry
People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard
Determination of arsenic, chromium and copper in wood and wood products for import and export
Inductively coupled plasma atomic emission spectrometry
Released on.2006-08-28
2007-03-01 implementation
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
Appendix A and Appendix B of this standard are informative annexes.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted. Ningbo Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China.
The main drafters of this standard. Chen Jianguo, Zhu Lihui, Jin Xianzhong.
This standard is the first industry standard for entry-exit inspection and quarantine.
Determination of arsenic, chromium and copper in wood and wood products for import and export
Inductively coupled plasma atomic emission spectrometry
1 Scope
This standard specifies the method for the determination of arsenic, chromium and copper in imported and exported wood and wood products by inductively coupled plasma atomic emission spectrometry.
This standard applies to the determination of arsenic, chromium and copper in imported and exported wood and wood products. Arsenic determination range. 20.0 mg/kg～
2000mg/kg; chromium, copper measurement range. 10.0mg/kg ~.2000mg/kg.
2 Normative references
The terms in the following documents become the terms of this standard by reference to this standard. All dated references, followed by all
Modifications (not including errata content) or modified versions do not apply to this standard, however, parties to agreements based on this standard are encouraged to study
Is it possible to use the latest version of these files? For undated references, the latest edition applies to this standard.
Preparation of standard solution for GB/T 602 chemical reagent impurity determination
JJG015 Inductively Coupled Plasma Atomic Emission Spectrometer Calibration Procedure
BSEN212 Wood Preservatives---General Guide for Analysis of Wood Preservatives and Methods for Preparing Wood
3 Method summary
After the sample is digested by wet or dry method and diluted to a certain volume, the sample solution is carried into the plasma by the carrier gas, and the excited atoms are excited.
And ions emit atomic and ion lines, and determine and calculate each element by using the linear relationship between the intensity and concentration of the characteristic lines of each element.
The content.
4 reagents
Unless otherwise stated, only analytically pure reagents and distilled water or water of corresponding purity were used in the analysis.
4.1 Nitric acid (ρ = 1.42 g/mL).
4.2 Nitric acid (1+9).
4.3 Sulfuric acid (ρ=1.84g/mL).
4.4 Hydrogen peroxide (30% aqueous solution).
4.5 Single element standard stock solution. standard solution of arsenic, chromium and copper is prepared according to GB/T 602 method, or directly using standard substance, its quality
The concentration was 1000 μg/mL.
4.6 Mixing standard solution. Pipette each element standard stock solution (4.5) 10mL in a 100mL volumetric flask and dilute with nitric acid (4.2)
And to a constant volume, mix, 1mL of this solution contains 100μg of each element to be tested.
5 instruments
5.1 Inductively coupled plasma atomic emission spectrometer. The instrument should provide a stable and clear plasma torch flame. The stability of the instrument should
Meet the JJG015 regulations. See Appendix A for the analysis wavelength and detection limit of each element. See Appendix B for the working conditions of the instrument. Calibration curve
The linear correlation coefficient should be greater than 0.999.
5.2 Microwave digestion system.
5.3 Muffle furnace.
5.4 Electric furnace.
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