GA/T 1656-2019 English PDF

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GA/T 1656-2019: Forensic sciences--Examination methods for lipstick--Infrared spectrometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GA/T 1656-2019	139	Add to Cart	3 days	Forensic sciences--Examination methods for lipstick--Infrared spectrometry	Valid

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Basic data

Standard ID: GA/T 1656-2019 (GA/T1656-2019)
Description (Translated English): Forensic sciences--Examination methods for lipstick--Infrared spectrometry
Sector / Industry: Public Security (Police) Industry Standard (Recommended)
Classification of Chinese Standard: A92
Classification of International Standard: 13.310
Word Count Estimation: 6,659
Date of Issue: 2019
Date of Implementation: 2019-12-01
Issuing agency(ies): Ministry of Public Security

GA/T 1656-2019: Forensic sciences--Examination methods for lipstick--Infrared 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.
Forensic sciences--Examination methods for lipstick--Infrared spectrometry ICS 13.310 A92 Public Safety Industry Standards of the People's Republic of China Forensic lipstick test infrared spectroscopy Published on October 14,.2019 2019-12-01 Implementation Issued by the Ministry of Public Security of the People's Republic of China

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some content of this document may involve patents. Publication of this document The institution does not assume responsibility for identifying these patents. This standard was proposed by the National Criminal Technology Standardization Technical Committee Physical and Chemical Inspection Sub-Technical Committee (SAC/TC179/SC4) and Be in charge. This standard was drafted by. People's Public Security University of China, Physical Evidence Appraisal Center of the Ministry of Public Security, China University of Political Science and Law. Drafters of this standard. Jiang Hong, Yang Lei, Li Haiyan, Wang Yuanfeng, Yan Zilong, Shi Huixia. Forensic lipstick test infrared spectroscopy

1 Scope

This standard specifies the method for testing lipsticks by infrared spectroscopy in the field of forensic science. This standard is applicable to the comparison test of lipstick material evidence in the field of forensic science, and can also be used for reference in other fields.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. GB/T 19267.1-2008 Physical and chemical inspection of criminal technical trace evidence Part 1.Infrared absorption spectroscopy GA/T 242 Terms of physical and chemical testing for forensic science

3 Terms and definitions

The terms and definitions defined in GA/T 242 apply to this document.

4 Principle

Lipstick is a mixture mainly composed of base materials (grease and wax) and color materials (dye, lake and pigment). The base material is the skeleton of lipstick Ingredients, mainly castor oil, higher fatty alcohols and higher esters of polyhydric alcohols, etc.The coloring material is the main component of lipsticks, and common ones are red bromate, aluminum, Lakes of calcium, barium, strontium and other salts, bismuth oxychloride and mica-titania films, etc. In addition, it also contains some additive ingredients, such as moisturizers (wool Fat, spermaceti, petrolatum, lecithin, glyceryl monostearate, etc.), hardeners (ceresin, carnauba wax, etc.) and flavors. Mouth with different ingredients Red has different infrared characteristic absorption, and the infrared spectroscopy can be used to compare the lipstick.

5 Reagents and materials

The required reagents and materials are as follows. a) Ethanol cotton ball; b) Scalpel or forceps.

6 Instruments and equipment

The required instruments and equipment are as follows. a) Infrared spectrometer, can be equipped with accessories such as infrared microscope, attenuated total reflection (ATR), diffuse reflection, diamond pool, etc.; b) Stereo optical microscope.

7 Sample preparation

7.1 Observe the appearance of the test material under a stereo optical microscope, and use a scalpel or tweezers to sample the lipstick sample. ......

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