GB/T 38007-2019 in English

VALID

Test method for identification of natural colored silk of silkworm(Bombyx mori)

Issued on:2019-08-30
Implemented on:2020-03-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $160.00
$156.00

Standard No:	GB/T 38007-2019
Document status:	VALID
Title in English:	Test method for identification of natural colored silk of silkworm(Bombyx mori)
Title in Chinese:	桑蚕天然彩色丝鉴别试验方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2019-08-30
Implemented on:	2020-03-01
ICS Classification:	59.080.01-Textiles in general
Chinese Classification:	W40-Silk and silk fabric in general
Professional Classification:	GB-National Standard
Related Keywords:	natural colored silk natural yellow silk test method mulberry silk yellow silk
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《GB/T 38007-2019桑蚕天然彩色丝鉴别试验方法》由TC401（全国丝绸标准化技术委员会）归口，主管部门为中国纺织工业联合会。

Introduction

In-depth interpretation of GB/T 38007—2019 Test method for identification of natural colored silk from mulberry silkworm

1. Background and significance of standard formulation

With the rapid development of my country's silk industry, natural colored silk from mulberry silkworm has attracted widespread attention due to its unique natural color and environmental protection characteristics. However, the market is also flooded with a large number of counterfeit products processed by chemical synthetic dyes or natural dyes. In order to regulate the market order and protect the rights and interests of consumers, GB/T 38007—2019 "Test method for identification of natural colored silk from mulberry silkworm" came into being.

This standard was drafted by the National Silk Standardization Technical Committee and covers the qualitative and quantitative detection methods of natural yellow silk and green silk from mulberry silkworm, providing a scientific and unified technical basis for the industry.

2. Comparative analysis of standard frameworks

Dimensions	GB/T 38007—2019	Differences between international standards	Scope of application
Qualitative detection method	Analysis of acid stability and color change characteristics, combined with UV-visible spectroscopy.	In line with internationally accepted methods, but with added optimization for Chinese silk.	Mulberry silk's natural yellow silk and green silk.
Quantitative detection	Determination of carotenoid and flavonoid content, using ethanol extraction combined with UV spectrophotometer.	The method is more accurate and suitable for large-scale industrial testing.	Suitable for silk reeling factories, traders and inspection agencies.
Equipment requirements	Professional instruments such as UV-visible spectrophotometer and ultrasonic extractor.	In line with international standards, some equipment requires customized adaptation.	Must-have for laboratories and testing agencies.

3. Implementation suggestions and precautions

Case analysis:

A silk enterprise purchased a batch of yellow silk from mulberry silkworms. Through qualitative identification of this standard, it was found that it did not meet the criteria for determining natural colored silk. Further testing showed that chemical synthetic dyes were used in this batch of products.
It is recommended that enterprises give priority to suppliers with qualification certification when purchasing, and conduct regular sampling and testing of raw materials.

Implementation suggestions:

Establish an internal laboratory or cooperate with a third-party inspection agency to ensure that the testing capabilities meet the standard requirements.
Purchase professional instruments and equipment, such as UV-visible spectrophotometer, ultrasonic extractor, etc.
Train technical personnel to master the detailed operating procedures and precautions of the standard.
Periodically sample and test products to ensure that they meet the technical requirements of GB/T 38007-2019.

More samples: DL/T 5154-2012 DL/T 368-2010 QC/T 942-2021

Sample only — not a preview of GB/T 38007-2019

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