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GB/T 15347-2015 English PDF

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GB/T 15347-2015: Chemical reagent -- L (+) -ascorbic acid
Status: Valid

GB/T 15347: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 15347-2015149 Add to Cart 3 days Chemical reagent -- L (+) -ascorbic acid Valid
GB/T 15347-1994239 Add to Cart 2 days Chemical reagent. L-Ascorbic acid Obsolete

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Basic data

Standard ID: GB/T 15347-2015 (GB/T15347-2015)
Description (Translated English): Chemical reagent -- L (+) -ascorbic acid
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G63
Classification of International Standard: 71.040.30
Word Count Estimation: 7,757
Date of Issue: 2015-05-15
Date of Implementation: 2015-12-01
Older Standard (superseded by this standard): GB/T 15347-1994
Quoted Standard: GB/T 601; GB/T 602; GB/T 603; GB/T 613; GB/T 6682; GB/T 9728; GB/T 9729; GB/T 9735; GB/T 9739; GB/T 9741-2008; GB 15346; HG/T 3484; HG/T 3921
Adopted Standard: ISO 6353-3-1987, NEQ
Regulation (derived from): National Standard Announcement 2015 No. 15
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 chemical reagent L (+) - ascorbic acid trait, specifications, testing, inspection rules and packaging, storage, transportation and signage. This Standard applies to chemical reagents L (+) - ascorbic acid test.

GB/T 15347-2015: Chemical reagent -- L (+) -ascorbic acid

---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.
Chemical reagent. L () -Ascorbic acid ICS 71.040.30 G63 National Standards of People's Republic of China Replacing GB/T 15347-1994 Chemical reagents L () - ascorbic acid (ISO 6353-3. 1987, Reagentsforchemicalanalysis- Part 3. Specifications-Secondseries, NEQ) Issued on. 2015-05-15 2015-12-01 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. This standard replaces GB/T 15347-1994 "chemical reagents ascorbic acid", compared with the GB/T 15347-1994 major technological changes as follows. --- By the standard name "ascorbic acid" to "L () - ascorbic acid"; --- Modify the packaging and logo (see Chapter 7, Chapter 6, 1994 edition). The standard reference method using redrafted ISO 6353-3. 1987 "Reagents for chemical analysis - Part 3. Specifications 2 Series" in R70 "L- ascorbic acid," prepared with ISO 6353-3. 1987 is equivalent to the degree of non-uniformity. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee Chemistry (SAC/TC63) centralized. This standard was drafted. Sinopharm Chemical Reagent Co., Ltd. Units involved in the drafting of this standard. Biotechnology Co., Ltd. on the Hai Wokai. The main drafters of this standard. Chenhao Yun, GU Yan, Ke Dehong. This standard was first released in December 1994, this is the first revision. Chemical reagents L () - ascorbic acid

1 Scope

This standard specifies the chemical reagent L () - ascorbic acid trait, specifications, testing, inspection rules, packaging, storage, transportation and signage. This standard applies to chemical agents L () - ascorbic acid test. Molecular formula. C6H8O6 Structure. Molecular weight. 176.09 (according to 2011 international relative atomic mass)

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. Preparation of GB/T 601 chemical reagent standard titration solution Preparation of standard solution of GB/T 602 Determination of impurities in chemical reagents GB/T 603 chemical reagent in test methods - Preparations with General Method GB/T 613 chemical reagent measurement of specific rotatory power (specific optical rotation) Laboratory use specifications and test methods GB/T 6682 Analysis GB/T 9728 General method for determination of chemical reagents sulfate GB/T 9729 General method for determination of chloride Chemicals GB/T 9735 General method for determination of heavy metals Chemicals GB/T 9739 General method for determination of iron chemical reagents GB/T 9741-2008 Determination of residue on ignition Chemicals General method GB 15346 chemical reagent packaging and marking HG/T 3484 standard chemical reagents glass emulsion and clarity standards HG/T 3921 Chemicals sampling and acceptance rules

3 Characters

This reagent is white crystal or crystalline powder, soluble in water, soluble in benzene and ether, aqueous acidic reaction, a strong reducing agent.

4 Specification

L () - ascorbic acid as shown in Table 1.
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