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GB/T 22427.12-2008 English PDF

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US$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 22427.12-2008: Starches and derived products -- Determination of chloride content
Status: Obsolete

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 22427.12-2008	199	Add to Cart	3 days	Starches and derived products -- Determination of chloride content	Obsolete

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Basic data

Standard ID: GB/T 22427.12-2008 (GB/T22427.12-2008)
Description (Translated English): Starches and derived products -- Determination of chloride content
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: X11
Classification of International Standard: 67.180.20
Word Count Estimation: 5,522
Date of Issue: 2008-10-19
Date of Implementation: 2009-03-01
Older Standard (superseded by this standard): GB/T 12093-1989
Adopted Standard: ISO 5810-1982, IDT
Regulation (derived from): National Standard Approval Announcement 2008 No.17 (Total No.130)
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 method of potentiometric titration of chloride content of starch and its derivatives. This standard applies to the determination of chloride content of starch and its derivatives. But not for the higher viscosity of cationic starch and cooling of starch and its derivatives.

GB/T 22427.12-2008: Starches and derived products -- Determination of chloride content

---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.
Starches and derived products. Determination of chloride content ICS 67.180.20 X11 National Standards of People's Republic of China GB/T 22427.12-2008/ISO 5810. 1982 Replacing GB/T 12093-1989 Determination of chloride content of starch and its derivatives (ISO 5810. 1982, Starchesandderivedproducts-Determinaitonof chloridecontent-Potentiometricmethod, IDT) Posted 2008-10-19 2009-03-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is identical with ISO 5810. 1982 "chloride content of starch and its derivatives potentiometric titration" (in English), because of the Older version, to meet current needs, slightly adjusted structure, contents remain the same, only made editorial changes. This standard replaces GB/T 12093-1989 "starch and derivatives chloride content determination." This standard and GB/T 12093-1989 compared to major changes are as follows. --- Standard name changed to "determination of chloride content of starch and its derivatives"; --- Improve the standard format, according to the International System of Units standardized units. This standard is proposed and managed by China General Chamber of Commerce. This standard was drafted. Chinese Chamber of Commerce Business Standard centers, food, Jiangnan University, China Starch Industry Association modified starch professional committee. The main drafters of this standard. Guzheng Biao, Hong Yan, Cheng Li, Chen Hongxing, Liu Zhimin, Jin Xiaolei. GB/T 22427.12-2008/ISO 5810. 1982 Determination of chloride content of starch and its derivatives

1 Scope

This standard specifies the method of potentiometric titration of chloride content of starch and its derivatives. This standard applies to the determination of chloride content of starch and its derivatives, but not for cationic starch and high viscosity after cooling Starch and its derivatives. Principle 2 With a standard silver nitrate solution as a reference, it was determined by potentiometric titration.

3 Reagents

Use analytical grade reagents and distilled water or equivalent purity. 3.1 nitrate. Ba = 70% (mass fraction), ρ20 = 1.41g/mL. 3.2 silver nitrate standard solution. Ba = 0.05mol/L or 0.02mol/L.

4 Instrument

4.1 Beaker. 250mL. 4.2 Pipette. 1mL. 4.3 Burette. 10mL. 4.4 Analysis of balance. a sense of the amount of 0.0001g. 4.5 potentiometer or pH meter. Scale should millivolts indexing, and corrected in accordance with instructions for use. 4.6 Electrode 4.6.1 silver - silver chloride electrode. 4.6.2 reference electrode for measuring the potentiometer chloride electrode system. 4.7 variable speed magnetic stirrer.

5 Operation

5.1 Sample preparation Mix well samples. 5.2 said sample According to Table 1, the estimated chloride content Weigh samples of adequate quality, accurate to 0.001g. Table 1 Chloride content estimates (Mass fraction, as NaCl) /% Sample size/g < 25 0.05 0.05 to 0.2 15 0.2 ~ 0.5 5 1 2.5 0.5 1-5 0.5 GB/T 22427.12-2008/ISO 5810. 1982 ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 22427.12-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 22427.12-2008_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 22427.12-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 22427.12-2008_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.