Path:
Home >
GB/T >
Page86 > GB/T 45516-2025
Price & Delivery
US$299.00 · In stock · Download in 9 secondsGB/T 45516-2025: Leather and fur - Chemical tests - Determination of ethylene glycol ethers content
Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See
step-by-step procedureStatus: Valid
| Std ID | Version | USD | Buy | Deliver [PDF] in | Title (Description) |
| GB/T 45516-2025 | English | 299 |
Add to Cart
|
3 days [Need to translate]
|
Leather and fur - Chemical tests - Determination of ethylene glycol ethers content
|
Click to Preview a similar PDF
Basic data
| Standard ID | GB/T 45516-2025 (GB/T45516-2025) |
| Description (Translated English) | Leather and fur - Chemical tests - Determination of ethylene glycol ethers content |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | Y46 |
| Classification of International Standard | 59.140.30 |
| Word Count Estimation | 14,119 |
| Date of Issue | 2025-04-25 |
| Date of Implementation | 2025-11-01 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 45516-2025: Leather and fur - Chemical tests - Determination of ethylene glycol ethers content
---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.
ICS 59.140.30
CCSY46
National Standard of the People's Republic of China
Chemical testing of leather and fur
Determination of glycol ether content
Released on 2025-04-25
2025-11-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by China Light Industry Federation.
This document is under the jurisdiction of the National Technical Committee for Standardization of Leather Industry (SAC/TC252).
This document was drafted by. Jiaxing University, Zhejiang Tongtianxing Group Co., Ltd., Asahikawa Chemical (Suzhou) Co., Ltd., Shenzhen Yingbo
Testing Technology Co., Ltd., Xiamen Redley Calibration Testing Technology Co., Ltd., China Leather and Shoe Research Institute Co., Ltd., Dongguan Zhongbiao Technology
Technology Co., Ltd. and China Light Industry Inspection and Certification Co., Ltd.
The main drafters of this document are. Ma Hewei, Sang Jun, Ye Yongbin, Chen Peipei, Cheng Yeju, Ding Humin, Zheng Fengqiong, Zhang Dahua and Gao Ya.
Chemical testing of leather and fur
Determination of glycol ether content
1 Scope
This document describes the determination of ethylene glycol dimethyl ether, ethylene glycol diethyl ether, ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, diethylene glycol monomethyl ether,
Test method for the content of 6 glycol ethers including glycol dimethyl ether and triethylene glycol dimethyl ether.
This document is applicable to the determination of the content of 6 glycol ethers in various types of leather, fur and their products.
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 39364 Sampling areas for chemical, physical, mechanical and color fastness tests on leather
QB/T 1267 Sampling areas for chemical, physical, mechanical and color fastness tests on fur
QB/T 1272 Preparation of fur chemical test samples
QB/T 1273 Determination of volatile matter in chemical tests on fur
QB/T 2716 Preparation of leather chemical test samples
QB/T 2717 Determination of volatile matter in leather chemical tests
3 Terms and definitions
There are no terms or definitions that require definition in this document.
4 Principle
The shredded leather or fur samples are extracted with ultrasonic-assisted methanol, and the extract is filtered through a filter membrane or purified by a solid phase extraction column.
Then, the product was determined by gas chromatography-mass spectrometry (GC-MS) and quantified by external standard method.
5 Reagents and Materials
5.1 General provisions. Unless otherwise specified, all reagents used are of analytical grade.
5.2 Methanol, chromatographic grade.
5.3 Anhydrous magnesium sulfate (MgSO4).
5.4 Six kinds of glycol ether standard substances. For detailed substance information, see Appendix A.
5.5 Standard stock solutions of glycol ethers, with a mass concentration of 1000 mg/L, are prepared using methanol (5.2).
5.6 Glycol ether standard working solution. Accurately pipette an appropriate amount of glycol ether standard stock solution (5.5) and add methanol (5.2).
Dilute to an appropriate mass concentration (such as 0.5 mg/L~50 mg/L) for instrument analysis.
...
