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GB/T 7717.5-2008 English PDF

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Q: Should I purchase the latest version GB/T 7717.5-2008?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 7717.5-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$169.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 7717.5-2008: Acrylonitrile for industrial use -- Part 5: Determination of acidity and pH value and titration value
Status: Valid

GB/T 7717.5: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 7717.5-2008	169	Add to Cart	3 days	Acrylonitrile for industrial use -- Part 5: Determination of acidity and pH value and titration value	Valid
GB/T 7717.5-1994	199	Add to Cart	2 days	Acrylonitrile for industrial use-Determination of pH value (5％ aqueous solution)	Obsolete
GB/T 7717.5-1987	RFQ	ASK	3 days	Acrylonitrile--Determination of pH value (5% Aqueous solution)	Obsolete

Similar standards

GB/T 3729 GB/T 6818 GB/T 6820 GB/T 7717.12 GB/T 7717.1 GB/T 7717.11

Basic data

Standard ID: GB/T 7717.5-2008 (GB/T7717.5-2008)
Description (Translated English): Acrylonitrile for industrial use -- Part 5: Determination of acidity and pH value and titration value
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G17
Classification of International Standard: 71.080.30
Word Count Estimation: 7,766
Date of Issue: 2008-06-19
Date of Implementation: 2009-02-01
Older Standard (superseded by this standard): GB/T 7717.5-1994; GB/T 7717.6-1994; GB/T 7717.13-1994
Quoted Standard: GB/T 601; GB/T 603; GB/T 3723; GB/T 6678; GB/T 6680; GB/T 6682; GB/T 8170; GB/T 9724
Regulation (derived from): National Standard Approval Announcement 2008 No.10 (Total No.123)
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 industrial use of acidity, determination of pH titration values. This section applies to industrial use-acidity, determination of pH titration values. Minimum detectable concentration of acidity of 1 mg/kg (as acetic acid).

GB/T 7717.5-2008: Acrylonitrile for industrial use -- Part 5: Determination of acidity and pH value and titration value

---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.
Acrylonitrile for industrial use Part 5. Determination of acidity and pH value and titration value ICS 71.080.30 G17 National Standards of People's Republic of China Replacing GB/T 7717.5-1994, GB/T 7717.6-1994, GB/T 7717.13-1994 Acrylonitrile for industrial use Posted 2008-06-19 2009-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 7717 "Acrylonitrile for industrial use" is expected to be divided into the following sections. --- Part 1. Specification; --- Part 5. Determination of acidity, pH and titration values; --- Part 8. Determination of total aldehyde content spectrophotometry; --- Part 9. Determination of total cyanide titration; --- Part 10. Determination of the peroxide content spectrophotometry; --- Part 11. Determination of iron and copper content spectrophotometry; --- Part 12. Determination of purity and impurity gas chromatography; --- Part 15. Determination hydroxyanisole content spectrophotometry. This section GB/T 57717 Part of. This Part replaces GB/T 7717.5-1994 "industrial measurement of acrylonitrile (5% aqueous solution) pH value", GB/T 7717.6-1994 "Determination of Acrylonitrile for industrial use (5% aqueous solution) titration values" and GB/T 7717.13-1994 "Acrylonitrile for industrial use - Determination of titratable acidity law". This section as compared with the standard three main changes are as follows. --- Three criteria will be integrated into a standard, technical content will remain basically unchanged; --- The name was changed to "Acrylonitrile for industrial use - Part 5. acidity, pH measurement and titration values"; --- Increased Chapter 3, "Security." This part is proposed by the China Petroleum and Chemical Corporation. This part of the National Standardization Technical Committee Petrochemical Chemical Club (SAC/TC63/SC4) centralized. This section drafted by. China Sinopec Shanghai Petrochemical Company Limited. The main drafters of this section. Quling Di, Tang Jianzhong, Chen Hongde, Zhou Huaqiang, Zhu Qing. This part of the standard replaces the previous editions are. --- GB 7717.5-1987, GB/T 7717.5-1994; --- GB 7717.6-1987, GB/T 7717.6-1994; --- GB 7717.13-1987, GB/T 7717.13-1994. Acrylonitrile for industrial use

1 Scope

This section provides industrial acrylonitrile acidity, pH value and the determination of the titration values. This section applies to the determination of Acrylonitrile for industrial use acidity, pH and titration value, the minimum detectable concentration acidity of 1mg/kg (in acetic acid meter).

2 Normative references

The following documents contain provisions by GB/T 7717 reference in this part of the provisions of this section. For dated references, All subsequent amendments (not including errata content) or revisions do not apply to this section, however, encourage the agreement on this section Whether the parties can study the latest versions of these documents. For undated reference documents, the latest versions apply to this section. Preparation of GB/T 601 chemical reagent standard titration solution GB/T 603 chemical reagent in test methods - Preparations with GB/T 3723 Sampling of chemical products for industrial use General Safety (GB/T 3723-1999, idt ISO 3165. 1976) GB/T 6678 General Principles for Sampling Chemical Products GB/T 6680 General rules for sampling liquid chemical products GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) GB/T 8170 numerical rounding rules GB/T 9724 General rule for determination of pH chemical reagent

3 Security

3.1 Acrylonitrile for industrial use is a highly dangerous, highly toxic and volatile, through the skin and the respiratory tract is absorbed by the body, it should be analyzed in the hood Carried out, and to provide labor protection measures to protect the skin and respiratory organs for personnel exposed to acrylonitrile.

4 Method summary

4.1 Determination of acidity. under conditions not in contact with carbon dioxide to thymol blue as indicator alcohol standard solution titration with an acid base titration Total. 4.2 pH value measurement. pH meter acrylonitrile solution (5% mass fraction) of the pH value measured directly. 4.3 Titration value measurement. a predetermined volume and is measured by the acrylonitrile solution pH value of 4.2 with 0.1mol/L sulfuric acid standard titration Potentiometric titration solution, titration to a pH equal to 5.0, the number of records ml of sulfuric acid standard titration solution required, as a sample of the drops Value.

5 Reagents and solutions

This part of the reagents and water, did not indicate when the other requirements, refer to the three water analytical reagent and GB/T 6682 stipulated. As used in this part of the standard titration solution, preparations and products, did not indicate when the other requirements, according to GB/T 601, GB/T 603 provisions preparation. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 7717.5-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 7717.5-2008_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 7717.5-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 7717.5-2008_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.

Question 5: Should I purchase the latest version GB/T 7717.5-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 7717.5-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.