Path:
Home >
GB/T >
Page91 > GB/T 38424-2019
Price & Delivery
US$359.00 · In stock · Download in 9 secondsGB/T 38424-2019: Determination of allergenic fragrances in toys - Gas chromatographic-mass spectrometry
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 38424-2019 | English | 359 |
Add to Cart
|
4 days [Need to translate]
|
Determination of allergenic fragrances in toys - Gas chromatographic-mass spectrometry
|
Click to Preview a similar PDF
Basic data
| Standard ID | GB/T 38424-2019 (GB/T38424-2019) |
| Description (Translated English) | Determination of allergenic fragrances in toys - Gas chromatographic-mass spectrometry |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | Y57 |
| Classification of International Standard | 97.200.50 |
| Word Count Estimation | 18,173 |
| Date of Issue | 2019-12-31 |
| Date of Implementation | 2019-12-31 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 38424-2019: Determination of allergenic fragrances in toys - Gas chromatographic-mass 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.
Determination of allergenic fragrances in toys--Gas chromatographic-mass spectrometry
ICS 97.200.50
Y57
National Standards of People's Republic of China
Determination of allergenic fragrance in toys
GC-MS
2019-12-31 release
2019-12-31 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.
Please note that some elements of this document may involve patents. The issuer of this document is not responsible for identifying these patents.
This standard is proposed by the China Light Industry Federation.
This standard is under the jurisdiction of the National Toy Standardization Technical Committee (SAC/TC253).
This standard was drafted. Shenzhen Metrology and Quality Inspection Research Institute, Yike Testing and Certification Co., Ltd., Guangdong Entry-Exit Inspection and Quarantine Bureau
Inspection and Quarantine Technology Center Toys and Baby Products Laboratory, Shanghai Entry-Exit Inspection and Quarantine Bureau Mechanical and Electrical Products Testing Technology Center, Zhejiang Fangyuan Testing Set
Group Co., Ltd., Shenzhen Entry-Exit Inspection and Quarantine Bureau Toy Testing Technology Center, National Daily Commodity Quality Supervision and Inspection Center, Guangdong
Yuedong Toy Testing Center of the Entry-Exit Inspection and Quarantine Bureau, SGS-CSTC Standard Technical Service Co., Ltd., and Beijing China Light Union Certification Center.
The main drafters of this standard. Huang Zhiyong, Chen Liqiong, Ant Lezhou, Tao Xiaomei, Wei Biwen, Liao Shangfu, Xu Tiangui, Chen Dewen, Lin Yin,
Xing Yuanna and He Xiaoyan.
Determination of allergenic fragrance in toys
GC-MS
Caution --- Personnel using this standard should have formal laboratory work and practical experience. This standard does not address all possible security issues.
question. It is the responsibility of the user to take appropriate safety and health measures and to ensure compliance with the conditions stipulated by relevant national regulations.
1 Scope
This standard specifies the gas chromatography-mass spectrometry method for determination of 47 allergenic fragrances in toy materials.
This standard applies to the determination of 47 allergenic fragrances in toy materials. Other allergenic fragrances can be referenced after verification
Perform the measurement.
2 Principle
After the sample preparation, dichloromethane was used for ultrasonic extraction at room temperature. After the extract was filtered through a membrane, a gas chromatography-mass spectrometer was used.
(GC-MS) determination, quantification by external standard method.
3 Reagents and materials
3.1 Dichloromethane. chromatographically pure.
3.2 Standards. The purity is not less than 90.0%. For information about allergenic fragrance standards, see Table A.1 in Appendix A.
3.3 Standard stock solutions (1000mg/L each). Accurately weigh appropriate amounts of each standard (3.2) and prepare with dichloromethane (3.1)
The standard stock solutions with a concentration of 1000mg/L were stored at 4 ℃.
3.4 Standard mixed working solution. 47 dilutions of standard stock solution (3.3) are mixed and diluted with dichloromethane (3.1) by using stepwise dilution
Standard mixed working solutions with a mass concentration of 0.5mg/L, 2mg/L, 10mg/L, 30mg/L and 50mg/L, used to make standards
curve.
3.5 Microporous membrane. organic phase, pore size 0.22μm.
4 Equipment
4.1 Gas chromatograph-mass spectrometer. with EI source.
4.2 Analytical balance. accurate to 0.1 mg.
4.3 Vortex the mixer.
4.4 Ultrasonic Extractor.
4.5 Centrifuge. The rotation speed is not less than 6000r/min.
4.6 Corked glass bottles.
5 Preparation and extraction of samples
5.1 Sample preparation
For liquid samples, shake well before weighing; for solid samples, mechanical separation makes the sample into multiple single materials, and then separates the materials
...
