| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 2454-2010 | English | 359 |
Add to Cart
|
3 days [Need to translate]
|
Determination of dimethyl fumarate in mildew preventives. Gas chromatography spectrometry
| Obsolete |
SN/T 2454-2010
|
PDF similar to SN/T 2454-2010
Basic data | Standard ID | SN/T 2454-2010 (SN/T2454-2010) | | Description (Translated English) | Determination of dimethyl fumarate in mildew preventives. Gas chromatography spectrometry | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | Y44 | | Classification of International Standard | 71.100.99 | | Word Count Estimation | 9,989 | | Date of Issue | 2010-03-02 | | Date of Implementation | 2010-09-16 | | Quoted Standard | GB/T 6283 | | Regulation (derived from) | National Quality Inspection (2010) 98; industry standard filing Notice 2010 No. 5 (No. 125 overall) | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the fungicide dimethyl fumarate gas chromatography detection methods. This standard method a suitable organic purity dimethyl fumarate, not less than 95 % of the fungicide in the determination of dimethyl fumarate, methods, two for naphthalene content of 10 % to 95% of fungicide Determination of dimethyl fumarate. | SN/T 2454-2010: Determination of dimethyl fumarate in mildew preventives. Gas chromatography 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 dimethyl fumarate in mildew preventives.Gas chromatography spectrometry
Exit inspection and quarantine industry standard book People's Republic of China
Determination of dimethyl fumarate in fungicide
Gas chromatography
Issued on. 2010-03-02
2010-09-16 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
Appendix A of this standard is an informative annex.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard is drafted by. People's Republic of China Guangdong Entry-Exit Inspection and Quarantine Bureau, People's Republic of China Fujian Entry-Exit Inspection and
Quarantine Bureau.
The main drafters of this standard. Li Dan, ZHOU Ming-hui, Di Cuiping, Homocysteine on Linbi Fen, Liu Yingfeng, Yueda Lei, Xiaoda Hui, Zheng Jianguo.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Determination of dimethyl fumarate in fungicide
Gas chromatography
1 Scope
This standard specifies the fungicide dimethyl fumarate by gas chromatography detection methods.
This standard applies to a method of dimethyl fumarate organic purity of not less than 95% of fungicide dimethyl fumarate determination method
Not applicable to the content of dimethyl fumarate, dimethyl fumarate, measured in 10% to 95% of the fungicide.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequently
Some amendments (not including errata content) or revisions do not apply to this standard. However, encourage the parties to the agreement
Research on whether to use the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 6283 Determination of moisture content of chemical products Karl Fischer method (General method)
3 Terms and Definitions
The following terms and definitions apply to this standard.
Dimethyl fumarate (Dimethylfumarate, CAS Code. 624-49-7)
Its structural formula is shown in Figure 1.
Formula 1 dimethyl fumarate
Method 4 a
4.1 Principle of the method
First, according to GB/T 6283 Determination of sample moisture content by the Karl Fischer method, the sample is then determined gravimetrically ethyl acetate
Insolubles content; determination of organic purity dimethyl fumarate by gas chromatography and then, after deduction of water and ethyl acetate insoluble content meter
Operators sample of dimethyl fumarate content.
4.2 Reagents
Ethyl acetate. analytical purity ≥99.5%, over 5 molecular sieve dehydration process?. By GC assay, in dimethyl fumarate peaks
No interference peak appears at a retention time.
4.3 instruments and equipment
4.3.1 Gas Chromatograph (GC). with a FID detector.
4.3.2 Glass beaker. 25mL.
4.3.3 Filter crucible. G4 type, 30mL.
4.3.4 Electronic balance. a sense of the amount of 0.1mg.
4.3.5 Micro Injector. 10μL.
4.3.6 blast oven.
4.3.7 ultrasonic extractor.
|