GB/T 36923-2018 in English

VALID

Identification of pearl powder—X-ray diffraction analysis

Issued on:2018-12-28
Implemented on:2019-07-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $220.00
$214.00

Standard No:	GB/T 36923-2018
Document status:	VALID
Title in English:	Identification of pearl powder—X-ray diffraction analysis
Title in Chinese:	珍珠粉鉴别方法 X射线衍射分析法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2018-12-28
Implemented on:	2019-07-01
ICS Classification:	71.100.70-Cosmetics. Toiletries
Chinese Classification:	Y42-Cosmetics
Professional Classification:	GB-National Standard
Related Keywords:	pearl powder identification x-ray diffraction analysis method pearl powder identification method x-ray diffraction analysis technology x-ray diffraction analysis introduction introduction gb/t
Related Topics:	x-ray diffraction group X-ray Diffraction Analysis Diffraction analysis Electron Diffraction Secondary Diffraction Ray Diffraction pearl Method identification + two cen x-diffraction X-ray analysis device Diffraction pattern Diffraction pattern Is X-ray Diffraction Safe? Transmission Diffraction X-ray Diffraction Quantitative Analysis x-ray diffraction X-ray Diffraction Quantitative Analysis xrd ray diffraction peaks law + x-ray X-ray diffraction sample preparation Diffraction peak analysis Electron Diffraction Secondary Diffraction Crystallinity by X-ray Diffraction x-ray diffraction reverse zero diffraction x+ ray diffraction x-ray diffraction particle size Diffraction analysis How to Identify Secondary Diffraction Why X-ray Diffraction X-ray Diffraction Screening single crystal x-ray analysis X-ray diffraction abroad How to Quantitatively Analyze X-ray Diffraction X-ray Diffraction and Polycrystalline X-ray Diffraction x-ray classification Glycoside identification method Quantitative Analysis Method of X-ray Diffraction Analytical method derivatization x-ray powder diffraction x-ray diffraction How to Quantitatively Analyze X-ray Diffraction X-ray Diffraction + Quantitative Analysis Standard Methods of X-ray Powder Diffraction By analyzing the diffraction peaks How to use x-ray diffraction Mini X-ray Diffraction X-ray diffraction analysis of crystal form single crystal x-ray analysis Crystalline X-ray Diffraction X-ray Diffraction vs Powder Diffraction X-ray diffraction peak at 27 degrees X-ray diffraction parameters X-ray diffraction analysis X-ray diffraction peak width X-ray composition analysis The identification method of bauxite ore is x-ray diffraction method x-ray diffraction and x-rays Powder X-ray Diffraction Analysis Post-column derivatization method x-ray classification Diffraction peaks of molybdenum classification x-ray X-ray diffractometry Diffraction and Transmission edx x-ray analysis xrd x-ray diffraction X Diffraction Analyzer Quantification by x-ray diffraction analysis How to Quantify by X-ray Diffraction X-ray Diffraction Structural Analysis X-ray diffraction, X-ray fluorescence X-ray Diffraction and X-ray Fluorescence second order diffraction x-ray diffraction x+ ray diffraction high power diffraction direct diffraction method Seven x-ray analysis Analyze x with High Energy X-ray Diffraction Technique Novel X-ray Diffraction X-ray Diffraction Intermediate x-ray diffraction Automated X-ray Diffraction x-ray diffraction ray fluorescence method than x X-ray Diffraction Method method of identification Qualitative analysis non-diffractive surface portable x-ray diffraction xrd High Energy X-ray Diffraction Alloy x-ray diffraction x-ray sample preparation method x-diffraction analysis X-ray Diffraction Mineral Analysis Analyzing X-ray Diffraction Spectra Analysis and identification method Transmission and Diffraction structural analysis x-ray x-ray analysis 2 Broadening of x-diffraction peaks Secondary Diffraction, Electron Diffraction Analysis of X-ray Diffraction Spectroscopy How to quantitatively analyze x diffractometer X-ray diffraction mineral identification Secondary Diffraction Diffraction Spot part of the diffraction peak width Neutron Diffraction Peaks x-ray powder Diffraction half-point analysis X-ray Diffraction Analysis How to analyze powder diffraction Diffraction semi-quantitative analysis X-ray crystallography High Energy X-ray Diffraction high energy diffraction transmission diffraction X-ray crystallography method X-ray Diffraction Powder Analysis X-ray Diffraction Powder Analysis X-ray diffraction analysis equipment X-ray diffractometer semi-quantitative analysis X-ray diffraction + quantitative analysis Ray analysis X-ray crystallographic analysis: X-ray diffraction equipment Diffraction point Secondary Diffraction Transmission X-ray diffraction identification Transmission Second Diffraction What does an x-ray diffractometer analyze? X-ray Diffraction Analysis X+ Diffraction X-ray Diffraction Method Mineral X-ray Diffraction Identification x-ray diffraction diffracted rays X-ray powder diffraction analysis Mineral X-ray Diffraction Identification party identification party difference Analytical method - identification X-ray Diffraction Phase Analysis New powder analysis method cobalt diffraction peak Radiographic Analysis X-ray stress analysis and X-ray diffraction analysis slightly incident x-rays Principles of High Energy Ray Diffraction Single crystal x-ray diffractometer analysis x-ray analysis technique Ray Diffraction Pattern What does x-ray diffractometer analyze Near Field High Energy X-ray Diffraction X-ray Diffraction Analysis X-ray diffraction parameters x-ray scattering analysis X-ray diffraction method in the analysis How to analyze x-ray diffraction spectrum X-ray Diffraction Structural Analysis X+ ray diffraction analyzer xrd ray diffraction Second order diffraction and first order diffraction x-ray diffraction size X-ray diffractometer test method X-ray Diffraction Analysis Spectrum x-ray absorptiometry X-ray fluorescence analysis and X-ray diffraction analysis Single crystal x-ray analysis Out-of-Plane Diffraction In-Plane Diffraction x-ray diffraction half width Molybdenum diffraction peak X-ray diffraction amorphous peak Diffraction peaks of water How X-ray Diffraction Analyzes Phase Structure x-ray diffraction scan Powder X-ray Diffraction Analysis X-ray diffraction technique sample preparation Derivative analysis method Diffraction peaks of x-diffraction silicon gold diffraction peaks Diffraction Broadening X-ray diffraction peak width X-ray diffraction analysis powder First Order Diffraction Second Order Diffraction What kind of rays are used in x-ray diffraction X-ray Diffraction Analysis Crystal Orientation What is x-ray diffraction used for? Diffraction plate Powder composition analysis method Diffraction peaks of cobalt cobalt diffraction peak X-ray Diffraction Analysis Structure in situ diffraction x-ray tomography How to quantitatively analyze x-ray diffractometer Diffraction concept X-ray Diffraction Analyzer X-ray Diffraction Microscopic x-ray tomography What are the methods of diffraction? X-ray diffraction equipment X-ray Diffraction Mineral Identification X-ray sample preparation methods Pearl Powder X-ray Diffraction Analysis Pearl Powder Identification Method X-ray Diffraction Analysis How is diffraction graded X-ray diffraction sample preparation volume X-ray diffraction peak position Secondary Diffraction Analysis X-ray diffraction equipment Diffraction point What does x-ray diffraction identify? Intensity of x-ray diffraction peaks To identify an analytical method Standard X-ray Powder Diffraction X-ray diffraction technique sample preparation Diffraction of waves three-point diffraction X-ray Diffraction Analysis Analysis of X-ray Diffraction Peaks Diffraction Analysis Spectral Analysis X-ray fluorescence analysis and X-ray diffraction analysis gc identification method X-ray diffraction peak broadening X-ray Diffraction and Spectroscopy x-ray fluorescence analysis and x-diffraction X-ray analysis X-ray diffraction lines X-ray diffractometer qualitative analysis phase X-ray Diffraction Analysis 05 x-ray sample preparation method X-ray Diffraction Analysis Structure x-ray diffraction and Ray Ray Analysis powder x-ray method double diffraction method X-ray Diffraction Analysis Handheld X-ray Analysis hand-held x-diffraction X-ray diffraction peak broadening X-ray diffraction crystal form edx analysis x-ray Powder X-ray Diffraction Analysis GB/T 36923 What does x-ray diffraction measure? How about x-diffraction analysis Pigment X-ray Diffraction X-ray diffractometer analysis x-ray stress analysis X-ray diffraction structure analysis GBT36923 GB/T 36923-2018 x ray pearls Whole Rock X-ray Diffraction Whole-rock X-ray diffraction Single Crystal X-ray Diffraction Analysis Whole-rock X-ray diffraction analysis Rock X-ray Diffraction Analysis Laue method x-ray diffraction The difference between continuous X-rays and characteristic X-rays Why X-ray diffraction can analyze crystal structure Factors affecting x-ray diffraction peaks The functions of various parts of X-ray powder diffractometer X-ray diffraction micro analysis Can x-ray diffraction measure functional groups? How to analyze x-ray diffraction patterns Characteristics of x-ray diffraction analysis X-ray diffraction analysis experimental parameter selection high pressure x-ray diffraction technology Principles and methods of electron diffraction Identification method of niacin for injection Beeswax identification method Standard diffractogram method Physical and chemical identification methods of licorice The simplest way to identify aluminum Identification methods drug analysis Pearl UV identification Paraformaldehyde analysis method identification Commonly used identification methods in drug analysis How to identify atropine How to identify isoniazid How to identify beeswax Diffraction analysis sampling Urea identification method Single crystal diffraction analysis method C. elegans phenotyping methods, Differences in the principles of each method of material analysis How to identify dandelions Analytical method linearity Lens diffraction angle test method How to identify Pulan Establishment of identification analysis method Identification of Cardiac Glycosides

《GB/T 36923-2018珍珠粉鉴别方法 X射线衍射分析法》由TC257（全国香料香精化妆品标准化技术委员会）归口，TC257SC2（全国香料香精化妆品标准化技术委员会化妆品分会）执行，主管部门为中国轻工业联合会。

Introduction

GB/T 36923-2018 "Pearl Powder Identification Method X-ray Diffraction Analysis Method" stipulates the terms and definitions, principles, detection methods and result judgment of pearl powder identification using X-ray diffraction analysis technology. This standard is mainly applicable to the qualitative identification of freshwater pearl powder, and provides a scientific basis for ensuring the product quality of the cosmetics industry and related fields.

Background of Standardization

This standard is under the jurisdiction of the National Technical Committee for Standardization of Flavors and Fragrances and Cosmetics, and was jointly drafted by a number of companies and universities. The background of its formulation is that pearl powder is widely used in the cosmetics, health care products and other industries, but there is a phenomenon of adulteration of shell powder and other impurities in the market. In order to protect the rights and interests of consumers and regulate the market order, this standard came into being.

Technical Principle

X-ray diffraction analyzer detects the differences in the crystal structure of pearl powder and its possible doping substances to achieve qualitative and quantitative analysis. The change of calcite phase content before and after heat treatment is used to distinguish pearl powder from shell powder. The following are the specific detection steps:

Instrument preparation: Use Bragg/Bretano ray geometry powder X-ray diffractometer or equivalent performance instrument.
Sample pretreatment: Grind the pearl powder sample to 300 mesh and pass it through a sieve.
Measurement at room temperature: Perform θ/2θ scanning to obtain the full diffraction spectrum.
Measurement after heat treatment: XRD analysis is performed again after the sample is treated at high temperature.
Data analysis: Calculate the calcite phase content through Rietveld full spectrum fitting quantitative analysis software.

Comparison of standard frameworks

Dimensions	GB/T 36923—2018	Related industry standards	Comparison of international standards
Scope of application	Qualitative identification of freshwater pearl powder	Only applicable to cosmetic raw material testing	No relevant international standards
Technical requirements	Calcite phase content ≤4%	No specific indicators are specified	Similar to ASTM E1582-16 but more detailed
Determination method	Quantitative + qualitative combined analysis	Single phase qualitative analysis	No clear comparison

Implementation suggestions

Application case

A cosmetics company purchased a batch of pearl powder raw materials and tested them according to this standard. The results showed that the calcite phase content was 3%, which was determined to be a qualified product. However, in subsequent batches, the calcite phase content reached 5%, and the product was immediately returned to avoid product quality risks.

Implementation suggestions

Instrumentation: Equipped with high-performance XRD instrument and calibrated regularly.
Staff training: Conduct systematic training for testing personnel to master standard operating procedures.
Quality control: Establish an internal quality control system to ensure data accuracy.
Risk warning: Regularly sample products on the market to detect adulteration in a timely manner.

More samples: JGJ 94-2008 JC/T 2453-2018 NB/T 47013.2-2015

Sample only — not a preview of GB/T 36923-2018

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