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SN/T 4772-2017: Determination of fluoride and chloride in wood-based panel--Ion chromatography
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 4772-2017 | English | 229 |
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Determination of fluoride and chloride in wood-based panel--Ion chromatography
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SN/T 4772-2017
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Basic data | Standard ID | SN/T 4772-2017 (SN/T4772-2017) | | Description (Translated English) | Determination of fluoride and chloride in wood-based panel--Ion chromatography | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | B70 | | Word Count Estimation | 10,126 | | Date of Issue | 2017-05-12 | | Date of Implementation | 2017-12-01 | | Regulation (derived from) | State-Quality-Inspection-Accreditation (2017) 228 | | Issuing agency(ies) | General Administration of Customs | SN/T 4772-2017: Determination of fluoride and chloride in wood-based panel--Ion chromatography---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.
(Determination of fluorine and chlorine in wood - based panels - Ion chromatography)
People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard
Determination of fluorine and chlorine in wood-based panels
Ion chromatography
Released on.2017-05-12
2017-12-01 implementation
People's Republic
The General Administration of Quality Supervision, Inspection and Quarantine issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that some of the contents of this document may involve patents. Publication of this document
The organization is not responsible for identifying these patents.
This standard is proposed and managed by the National Certification and Accreditation Administration.
This standard was drafted. Guangdong Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China, Jiangsu Entry-Exit Inspection and Quarantine
Bureau, Shanxi Entry-Exit Inspection and Quarantine Bureau, People's Republic of China Tianjin Entry-Exit Inspection and Quarantine Bureau, People's Republic of China
Shanghai Entry-Exit Inspection and Quarantine Bureau.
The main drafters of this standard. Liu Zhuoqin, Pan Bingzhen, Zhang Rui, Zhang Zhihui, Guo Renhong, Wang Hui, Yuan Li, Li Jianyong, Yu Wenjia.
Determination of fluorine and chlorine in wood-based panels
Ion chromatography
1 Scope
This standard specifies the ion chromatographic method for the determination of fluorine and chlorine in wood-based panels.
This standard applies to the determination of fluorine and chlorine content in wood-based panels.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 6682 Analytical laboratory water specifications and test methods
3 Principle of the method
Ultrasonic extraction of fluorine and chlorine in the sample, the extract was determined by ion chromatography. The retention time is qualitative and the external standard method is used for quantification.
4 reagents and materials
4.1 Water. GB/T 6682, first grade water.
4.2 Fluorine standard solution. The concentration is 1000 μg/mL.
4.3 Chlorine standard solution. The concentration is 1000μg/mL.
4.4 Standard working solution. accurately remove the fluorine standard solution (4.2) 1.0mL and the chlorine standard solution (4.3) 10.0mL, and put it in 100mL plastic
In a volumetric flask, dilute to the mark with water and mix for later use. The solution had a fluoride ion concentration of 10 μg/mL and a chloride ion concentration of 100 μg/mL.
4.5 Syringe. 2mL.
4.6 Water phase membrane. 0.22 μm pore size.
5 Instruments and equipment
5.1 Ion Chromatograph with Conductivity Detector, Gradient Pump, Automatic Eluent Generator.
5.2 Analytical balance, the sensitivity is 0.001g.
5.3 Ultrasonic cleaner.
5.4 Tube Centrifuge. Speed 4500r/min, adapt to 50mL centrifuge tube.
6 Analysis steps
6.1 Preparation of samples
The sample was pulverized, passed through a 20 mesh sieve, and repeatedly mixed to obtain not less than 100 g.
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