Path:
Home >
SN/T >
Page41 > SN/T 3918-2014
|| Home >
Standard_List >
SN/T >
Page41 > SN/T 3918-2014
Price & Delivery
US$209.00 ยท In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
SN/T 3918-2014: Determination of polychlorinated terphenyls in plastics and plastic products. Gas Chromatograph method
Status: Valid
| Std ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status |
| SN/T 3918-2014 | English | 209 |
Add to Cart
|
3 days [Need to translate]
|
Determination of polychlorinated terphenyls in plastics and plastic products. Gas Chromatograph method
| Valid |
Basic data
| Standard ID | SN/T 3918-2014 (SN/T3918-2014) |
| Description (Translated English) | Determination of polychlorinated terphenyls in plastics and plastic products. Gas Chromatograph method |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | G31 |
| Classification of International Standard | 83.080 |
| Word Count Estimation | 8,882 |
| Date of Issue | 4/9/2014 |
| Date of Implementation | 11/1/2014 |
| Regulation (derived from) | State inspection certification (2014) 210 |
| Issuing agency(ies) | General Administration of Customs |
| Summary | This standard specifies the gas chromatographic method and plastic products of PCTs. This standard applies to plastic products and PCTs determination. |
SN/T 3918-2014: Determination of polychlorinated terphenyls in plastics and plastic products. Gas Chromatograph method
---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 polychlorinated terphenyls in plastics and plastic products. Gas Chromatograph method
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Plastic products and PCTs determination
Gas chromatography
Issued on. 2014-04-09
2014-11-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard is drafted by. People's Republic of China Fujian Exit Inspection and Quarantine.
The main drafters of this standard. Liang Zhen, Jiang Xiaoli Tang Xi, Liang Ming, Tang Hong, Chen Jiamin.
Plastic products and PCTs determination
Gas chromatography
1 Scope
This standard specifies the gas chromatographic method and plastic products of PCTs.
This standard applies to plastic products and PCTs determination.
2 Terms and definitions
The following terms and definitions apply to this document.
2.1
PCTs Polychlorinatedterphenyls (PCTs)
PCTs (PCTs) has three benzene structure, depending on the number of chlorine atoms substituted on the phenyl ring and the position can be attached up
14 chlorine atoms, PCTs theoretically has a huge number of isomers, but the actual application, there was no single form before, the main
To appear in several commodity mix recipes, such as aroclor5442, aroclor5460.
PCTs structural formula is as follows.
3 Method summary
After sample extraction, solvent extraction liquid conversion, enrichment, after purification by silica gel column concentrated small volume by gas chromatography -
ECD were measured using the internal standard relative retention time than the qualitative and quantitative internal standard.
4 Reagents and materials
4.1 hexane. chromatographically pure.
4.2 acetone. AR.
4.3 n-heptane. chromatography.
4.4 acetone-hexane (32).
4.5 methanol. AR.
Over 4.6 PCTs standard substance. the commercialization of mixed standard substance aroclor5460, purity greater than or equal to 99.5%.
Over 4.7 PCTs preparation of standard solution A. accurately weighed amount PCTs standard substance was dissolved and diluted with n-heptane (4.3) with
Standard solution prepared at the desired concentration.
4.8 PCBs PCB-29 reference standard substance. purity of greater than or equal to 99.5%.
4.9 PCBs PCB-209 internal standard substance. purity of greater than or equal to 99.5%.
4.10 PCBs PCB-29, PCB-209 standard solution. namely, accurately weighed amount of PCBs and PCB-29 PCB-209 standard
Tips & Frequently Asked Questions:
Question 1: How long will the true-PDF of SN/T 3918-2014_English be delivered?
Answer: Upon your order, we will start to translate SN/T 3918-2014_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.
Question 2: Can I share the purchased PDF of SN/T 3918-2014_English with my colleagues?
Answer: Yes. The purchased PDF of SN/T 3918-2014_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.
Question 3: Does the price include tax/VAT?
Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs):
List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?
Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.