GB/T 30919-2014 English PDF

US$229.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 30919-2014: Styrene-butadiene rubber, raw -- Determination of N-nitrosamines content by gas chromatography -- Thermo energy analyzer method
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 30919-2014	229	Add to Cart	3 days	Styrene-butadiene rubber, raw -- Determination of N-nitrosamines content by gas chromatography -- Thermo energy analyzer method	Valid

Similar standards

GB/T 5577   GB/T 32020   GB/T 32439   GB/T 43314   GB/T 19187   GB/T 30920   

Basic data

Standard ID: GB/T 30919-2014 (GB/T30919-2014)
Description (Translated English): Styrene-butadiene rubber, raw -- Determination of N-nitrosamines content by gas chromatography -- Thermo energy analyzer method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G34
Classification of International Standard: 83.040
Word Count Estimation: 10,178
Date of Issue: 7/8/2014
Date of Implementation: 12/1/2014
Quoted Standard: GB/T 15340
Regulation (derived from): 2014 National Standards Bulletin No. 18
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the use of gas chromatography - thermal energy analyzer (GC-TEA) Determination of styrene - butadiene rubber N- nitroso dimethylamine, N- nitroso methyl ethyl amine, N- nitroso diethylamine, N- nitroso two propanamine, N- nitroso-

GB/T 30919-2014: Styrene-butadiene rubber, raw -- Determination of N-nitrosamines content by gas chromatography -- Thermo energy analyzer 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.
Styrene-butadiene rubber, raw. Determination of N-nitrosamines content by gas chromatography. Thermo energy analyzer method ICS 83.040 G34 National Standards of People's Republic of China Styrene - Butadiene Rubbers Determination of N- nitrosamine compound Gas chromatography - Thermal Analysis Styrene-butadienerubber, raw-DeterminationofN-nitrosaminescontent Issued on. 2014-07-08 2014-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by China Petroleum and Chemical Corporation. This standard by the National Standardization Technical Committee rubber and rubber products, synthetic rubber Technical Committee (SAC/TC35/SC6) Centralized. This standard was drafted. China National Petroleum Corporation Research Institute of Petroleum. The main drafters of this standard. Xue Huifeng, Gong Guangbi, Gengzhan Jie, Qin Peng, Fanguo Ning, Sun Lijun, Zhaiyue Qin, Wu Yi, Wang Fang, high Dongmei, Wang Xueli. Styrene - Butadiene Rubbers Determination of N- nitrosamine compound Gas chromatography - Thermal Analysis Warning. Use of this standard should be familiar with normal laboratory practice. This standard does not purport relates to the use of this standard may occur All security issues. Develop appropriate safety and health system and to ensure compliance with national regulations is the responsibility of the user. Some analytical methods specified in this standard may involve the use of a substance or substances or generation of waste generated, which may cause local Environmental hazards. After the test operation should refer to the appropriate security documents for processing.

1 Scope

This standard specifies the use of gas chromatography - thermal energy analyzer (GC-TEA) Determination of styrene - butadiene rubber N- nitroso dimethylamine, N- nitroso methylethyl amine, N- nitroso diethylamine, N- nitroso two propanamine, N- nitroso-dibutylamine, N- nitroso piperidine, N- nitroso pyrazole Pyrrolidine, N- nitroso morpholine, N- nitroso 10 kinds of methods amine content N- nitroso-methylaniline, N- nitroso-diethylaniline and the like. This standard applies to non-oil-extended emulsion styrene - butadiene rubber raw.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 15340 natural, synthetic rubber raw sampling and sample preparation method (GB/T 15340-2008, ISO 1795.2000, IDT)

3 Method Summary

The sample was pulverized, extracted with a solvent in the rubber compound N- nitrosamine, removing interferences, the solution was concentrated by GC-TEA Measured.

4 Reagents and materials

Unless otherwise indicated in the analysis using only the confirmation of analytical grade or higher purity reagents and distilled water or equivalent purity. 4.1 methanol. 4.2 dichloromethane. 4.3 nitrosamines standard substance. purity > 98%, or the exact concentration of the standard solution. 4.4 NaCl. mass fraction of 2%. Methanol 4.5 - Sodium Chloride Solution. methanol solution of sodium chloride (4.4) in a mixed solution (volume ratio 2.3). 4.6 standard stock solution A. Take about 100mL of methanol was added to the brown 500mL volumetric flask, then add standard substance ten kinds of nitrosamines (Each about 50mg, accurate to 0.1mg), diluted with methanol to the mark, shake seal below 5 ℃ in the dark environment preservation, valid In Standards certificate shall prevail. It can also be directly prepared by dilution of standard solution accurate concentration. A standard solution of each of N-nitrosamines Concentration of approximately 100μg/mL. ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 30919-2014_English be delivered?

Answer: Upon your order, we will start to translate GB/T 30919-2014_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 GB/T 30919-2014_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 30919-2014_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+ countries

Question 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.