GB/T 38416-2019 English PDF

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GB/T 38416-2019: Fur - Identification - Method of microscopy
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 38416-2019	359	Add to Cart	4 days	Fur - Identification - Method of microscopy	Valid

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Basic data

Standard ID: GB/T 38416-2019 (GB/T38416-2019)
Description (Translated English): Fur - Identification - Method of microscopy
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Y46
Classification of International Standard: 59.140.30
Word Count Estimation: 18,130
Date of Issue: 2019-12-31
Date of Implementation: 2020-07-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 38416-2019: Fur - Identification - Method of microscopy

---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.
Fur--Identification--Method of microscopy ICS 59.140.30 Y46 National Standards of People's Republic of China Fur material identification microscopy 2019-12-31 release 2020-07-01 implementation State Administration of Market Supervision Published by the National Standardization Administration

Foreword

This standard was 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 is under the jurisdiction of the National Leather Industry Standardization Technical Committee (SAC/TC252). This standard was drafted. Zhejiang Fangyuan Inspection Group Co., Ltd., Beijing Yuanxin Technology Co., Ltd., and Zhejiang Nuo Co., Ltd., China Leather Shoes Research Institute Co., Ltd., Zhejiang University, National Leather Quality Supervision and Inspection Center (Zhejiang), National Leather Quality Inspection Center (Guangzhou), Dongguan Weide Technology Development Co., Ltd. The main drafters of this standard. Zhang Yahong, Cao Zhengfei, Huang Xinxia, Wu Luming, Fu Zheng, Xu Zheng, Cui Xiangjun, Li Yanying, Zhang Wenfu. Fur material identification microscopy

1 Scope

This standard specifies the microscopic identification method of fur material. This standard applies to the identification of various types of fur and its products. This standard does not apply to the identification of fur materials with significant changes in hair fiber tissue and disappearance of features.

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 undated references, the latest version (including all amendments) applies to this document. QB/T 1261 Fur industry terminology

3 Principle

According to the differences in the structure characteristics of the hair shaft tissue of different animal furs, observe the hair shaft surface and cross-section characteristic morphology of the fur through a microscope Identify fur material.

4 Equipment and materials

4.1 Glycerin. chemically pure. 4.2 Collodion solution. The mass fraction is 5%. 4.3 Citric acid. analytical grade. 4.4 Sodium hydroxide. analytical grade. 4.5 Citrate buffer (0.06mol/L, pH = 6.0). 12.526g of citric acid (4.3) and 6.320g of sodium hydroxide (4.4) are dissolved in water. Make up to 1000mL. 4.6 Sodium dithionite. purity ≥87%. 4.7 Sodium dithionite solution..200g/L, freshly prepared. 4.8 Hastelloy slicer, blade, pick needle. 4.9 Slides and coverslips. 4.10 Optical microscope. under the light source, magnification is at least 100 times. 4.11 Reference samples or spectra (see Appendix A). Note. In addition to Appendix A, a map can also be established based on known animal skins according to this standard as a reference sample and map. If there is a standard sample, use the standard first. Quasi samples.

5 Identification process

5.1 Appearance Check the skin and quilt of the fur sample, and confirm whether it is natural fur. ......

Image     

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