LST6115-2016 English PDF

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LST6115-2016: Inspection of grain and oils. Rapid determination of cadmium in rice. X-ray fluorescence spectrometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
LS/T 6115-2016	209	Add to Cart	3 days	Inspection of grain and oils. Rapid determination of cadmium in rice. X-ray fluorescence spectrometry	Valid

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Basic data

Standard ID: LS/T 6115-2016 (LS/T6115-2016)
Description (Translated English): Inspection of grain and oils. Rapid determination of cadmium in rice. X-ray fluorescence spectrometry
Sector / Industry: Food & Beverage Industry Standard (Recommended)
Classification of Chinese Standard: B20
Classification of International Standard: 67.060
Word Count Estimation: 9,916
Date of Issue: 2016-01-07
Date of Implementation: 2016-01-07
Quoted Standard: GBZ 115; GB 5009.15; GB 5491; GB/T 6379.1; GB/T 6379.2; GB/T 27404
Regulation (derived from): Industry standard filing notice 2016 No. 1 (total 193)
Issuing agency(ies): National Grain Administration
Summary: This standard specifies the principle, equipment, sample preparation, determination and expression of results of X-ray fluorescence spectrometry for quick screening and quantitative determination of cadmium content. This standard is applicable to the determination of cadmium in rice and its products. The limit of quantification is 0.046mg/kg and the limit of quantification is 0.15mg/kg.

LST6115-2016: Inspection of grain and oils. Rapid determination of cadmium in rice. X-ray 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.
Inspection of grain and oils.Rapid determination of cadmium in rice.X-ray fluorescence spectrometry ICS 67.060 B20 People's Republic of China food industry standard Rapid determination of cadmium in rice by grain and oil inspection X-ray fluorescence spectrometry Published on.2016-01-07 2016-01-07 implementation National Food Bureau released

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the National Grain Administration. This standard is under the jurisdiction of the National Grain and Oil Standardization Technical Committee (SAC/TC270). This standard is drafted by. Hunan Provincial Grain and Oil Product Quality Monitoring Center (Hunan Grain and Oil Research Institute). Participated in the drafting of this standard. Beijing Grain and Oil Food Inspection Institute, Guangxi National Grain Quality Monitoring Center, Guizhou Province Grain and Oil Product Quality Supervised inspection station, Steel Research Institute Testing Technology Co., Ltd., Jiangsu Tianrui Instrument Co., Ltd. The main drafters of this standard. Ni Xiaoying, Xu Yanxia, Mei Guang, Huang Li, Yan Shimin, Shang Yanzhen, Yang Zhigang, Liu Mingbo, Liao Xueliang, Chen Yongyan, Liu Yongying, Wu Min, Yuan Yi. Rapid determination of cadmium in rice by grain and oil inspection X-ray fluorescence spectrometry

1 Scope

This standard specifies the principle, equipment and sample system for rapid screening and quantitative determination of cadmium content by X-ray fluorescence spectrometry. Preparation, sample determination and results presentation. This standard is applicable to the determination of cadmium in rice and its products. The detection limit of quantitative determination method is 0.046mg/kg, the limit of quantification It is 0.15 mg/kg.

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. GBZ 115 X-ray diffractometer and fluorescence analyzer health protection standards GB 5009.15 National Food Safety Standard Determination of Cadmium in Foods GB 5491 Inspection of food and oil materials, sample method GB/T 6379.1 Accuracy of measurement methods and results (accuracy and precision) Part 1. General and definition GB/T 6379.2 Accuracy of measurement methods and results (accuracy and precision) Part 2. Determination of standard method of measurement Basic method of sex and reproducibility GB/T 27404 laboratory quality control specification food physical and chemical testing

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 X-ray fluorescence spectroscopy X-rayfluorescencespectrometry Using primary X-ray photons or other microscopic ions to excite atoms in the substance to be detected, causing them to produce fluorescence (secondary X-rays) Method of analysis of material composition and chemical state. Energy dispersive X-ray fluorescence spectroscopy (EDXRF) and wavelength dispersive X-rays are classified according to excitation, dispersion and detection methods. Fluorescence spectroscopy (WDXRF). The standard method is energy dispersive X-ray fluorescence spectrometry. 3.2 Quick screening for rapidscreening Rapid determination of cadmium content in samples, positive or negative, exceeding or not exceeding the current cadmium limit standard in rice (rice) The result of the target judgment.

4 Principle

The sample is excited by high-energy X-rays to obtain characteristic X-ray fluorescence of cadmium (Cd) elements in the sample. The X-ray is emitted within a certain concentration range. ......

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