GB/T 32603-2016 English PDF

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GB/T 32603-2016: Determination of the content of migration of arsenic, antimony, selenium, mercury from toy materials -- Atomic fluorescence spectrometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 32603-2016	179	Add to Cart	3 days	Determination of the content of migration of arsenic, antimony, selenium, mercury from toy materials -- Atomic fluorescence spectrometry	Valid

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Basic data

Standard ID: GB/T 32603-2016 (GB/T32603-2016)
Description (Translated English): Determination of the content of migration of arsenic, antimony, selenium, mercury from toy materials -- Atomic fluorescence spectrometry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y57
Classification of International Standard: 97.200.50
Word Count Estimation: 9,992
Date of Issue: 2016-04-25
Date of Implementation: 2016-11-01
Quoted Standard: GB/T 602; GB 6675.4; GB/T 6682
Regulation (derived from): National Standard Announcement No
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
Summary: This standard specifies the method for the determination of the contents of migratory elements arsenic (As), antimony (Sb), selenium (Se), mercury (Hg) in toy materials by atomic fluorescence spectrometry (AFS). This standard applies to toy materials. The detection limits of this method are 0.1 mg/kg for arsenic, antimony and selenium, and 0.02 mg/kg for mercury.

GB/T 32603-2016: Determination of the content of migration of arsenic, antimony, selenium, mercury from toy materials -- Atomic fluorescence spectrometry

---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 the content of migration of arsenic, antimony, selenium, mercury from toy materials ICS 97.200.50 Y57 National Standards of People's Republic of China Toy material can be transferred elements arsenic, antimony, selenium, Determination of mercury by atomic fluorescence spectrometry Determinationofthecontentofmigrationofarsenic, antimony, selenium, mercuryfromtoymaterials-Atomicfluorescencespectrometry 2016-04-25 released 2016-11-01 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 China Light Industry Federation. This standard by the National Toy Standardization Technical Committee (SAC/TC253) centralized. The drafting unit of this standard. Guangdong Entry-Exit Inspection and Quarantine Bureau Inspection and Quarantine Technology Center toys Baby supplies laboratory, Jiangsu Tianrui Instrument Unit Co., Ltd., Dongguan Mei Chi Figure Industry Co., Ltd., Shenzhen Institute of Measurement and Quality Inspection, Xiamen Entry-Exit Inspection and Quarantine Inspection and Quarantine Technology Center, Beijing in the light of the certification center. The main drafters of this standard. Liu Chonghua, Huang Li, Shen Xiaoluan, Huang Yisheng, Fang Han, Zheng Jianming, Wang Changsheng, Yao Dongliang, Zhang Haibing. Toy material can be transferred elements arsenic, antimony, selenium, Determination of mercury by atomic fluorescence spectrometry WARNING - Personnel using this standard should have practical experience in formal laboratory work. This standard does not indicate all possible security Full problem. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the relevant conditions of the State.

1 Scope

This standard specifies the use of atomic fluorescence spectrometer (AFS) to determine the transport material can be transferred elements arsenic (As), antimony (Sb), selenium (Se) Mercury (Hg) content. This standard applies to toy materials. The detection limit of arsenic, antimony and selenium is 0.1mg/kg, and the detection limit of mercury is 0.02mg/kg.

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 602 Preparation of standard solutions for the determination of impurities in chemical reagents GB 6675.4 Toy safety - Part 4. Migration of specific elements GB/T 6682 Analytical laboratory water specifications and test methods

3 principle

The toy material is sampled, prepared and extracted according to the procedure specified in GB 6675.4. Determination of arsenic, antimony elements, thiourea - ascorbic acid will be extracted from the solution of arsenic, antimony pre-reduced for the hydride generation of the valence state; Potassium hydride to reduce it to arsenic, antimony hydride. The treated solution is fed from the carrier gas into the atomizer and decomposed into atomic at high temperatures Arsenic, antimony. In the hollow cathode lamp excitation, the elements of the atoms produce fluorescence, the fluorescence intensity and the measured element content is proportional to the control standard curve Determination of arsenic and antimony content. Determination of selenium element, the concentrated hydrochloric acid solution will be pre-reduced to the hydride suitable for hydride generation of the valence state, followed by potassium borohydride to restore Selenium hydride. The treated solution is fed from the carrier gas into the atomizer and decomposed into atomic selenium at high temperatures. In the hollow cathode light The fluorescence intensity of the selenium element is proportional to the content of the element, and the selenium content is determined by the standard curve. Determination of mercury, the addition of potassium borohydride to the atomic mercury, from the carrier gas into the atomic agent directly detected. Excited in a hollow cathode lamp , The mercury element atoms produce fluorescence, the fluorescence intensity and the measured element content is proportional to the standard curve to determine the mercury content.

4 reagents and materials

4.1 All reagents are of grade I unless otherwise noted. The water shall comply with the requirements of Grade 1 water specified in GB/T 6682. 4.2 Hydrochloric acid (mass fraction 37%). 4.3 hydrochloric acid solution c (HCl) = (0.070 ± 0.005) mol/L. ......

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