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GB/T 1665-2008 English PDF

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GB/T 1665-2008: Plasticizers -- Determination of saponification value and ester-content
Status: Valid

GB/T 1665: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 1665-2008English139 Add to Cart 3 days [Need to translate] Plasticizers -- Determination of saponification value and ester-content Valid GB/T 1665-2008
GB/T 1665-1995English199 Add to Cart 2 days [Need to translate] Plasticizers--Determination of saponification value and ester-content Obsolete GB/T 1665-1995
GB 1665-1981English199 Add to Cart 2 days [Need to translate] Determination of the saponification value and ester content of plasticizer Obsolete GB 1665-1981

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Basic data

Standard ID GB/T 1665-2008 (GB/T1665-2008)
Description (Translated English) Plasticizers -- Determination of saponification value and ester-content
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G70
Classification of International Standard 71.100.40; 83.040.30
Word Count Estimation 6,662
Date of Issue 2008-06-18
Date of Implementation 2009-02-01
Older Standard (superseded by this standard) GB/T 1665-1995; GB/T 6489.3-2001
Quoted Standard GB/T 601; GB/T 603; GB/T 6682
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 determination of saponification value and ester plasticizer content. This standard applies to the determination of the general saponification value and ester plasticizer content.

GB/T 1665-2008: Plasticizers -- Determination of saponification value and ester-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.
Plasticizers. Determination of saponification value and ester-content ICS 71.100.40; 83.040.30 G70 National Standards of People's Republic of China Replacing GB/T 1665-1995, GB/T 6489.3-2001 Determination of saponification value and ester plasticizer content Posted 2008-06-18 2009-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard also replace the GB /"Determination of saponification value and ester plasticizer content of" T 1665-1995 and GB/T 6489.3-2001 "Industrial Using test methods acetate content of phthalates Determination of saponification titration. " This standard and GB/T 1665-1995 no technical difference. This standard and GB/T 6489.3-2001 technical differences are as follows. --- Analysis step of the standard sample weight calculated by the formula, GB/T 6489.3-2001 the sample weight is given by the list. --- The results of this calculation are given two standard formulas saponification value and ester content (suitable for all plasticizers), GB/T 6489.3-2001 ester content is calculated only for phthalate plasticizers. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee rubber chemical additives and rubber Technical Committee. This standard is drafted by. Shanxi Institute of Chemical Engineering. The main drafters of this standard. Guo Yanping, Fan Xiuli. This standard replaces the standards previously issued as follows. --- GB/T 1665-1981, GB/T 1665-1995. --- GB/T 6489.3-1986, GB/T 6489.3-2001. Determination of saponification value and ester plasticizer content 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. Establish appropriate safety and health practices and determine the adaptive management system is the responsibility of the user.

1 Scope

This standard specifies the method for determination of saponification value and ester plasticizer content. This standard applies to the determination of general plasticizer saponification value and ester content.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. Preparation of GB/T 601 chemical reagent standard titration solution GB/T 603 chemical reagent test method Preparations of articles (GB/T 603-2002, ISO 6353-1 with. 1982, NEQ) GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) Principle 3 With an excess of potassium hydroxide - ethanol ester saponification sample, using phenolphthalein as an indicator solution, titration with hydrochloric acid standard solution titration of excess KOH - ethanol solution.

4 Reagents and materials

Unless otherwise indicated, the analysis used in the standard titration solution, preparations and products, according to GB/T 601, GB/T 603 provisions of preparation, analysis Only confirmed using analytical grade reagents and third grade water GB/T 6682 stipulated. 4.1 hydrochloric acid standard titration solution. Ba (HCl) = 1.00mol/L. Potassium hydroxide 4.2 - Ethanol standard solution. Ba (KOH) = 1mol/L, formulated with 95% ethanol. 4.3 phenolphthalein indicator solution. 10g/L.

5 Instruments

5.1 grinding mouth Erlenmeyer flask. 250mL, borosilicate glass, with ground glass stopper. 5.2 water-cooled reflux condenser. with ground glass joints, matching conical flask. 5.3 single pipette. 50mL. 5.4 Burette. 50mL. Step 6 Analysis 6.1 with the same pipette Pipette 50mL KOH - ethanol standard solution is added to the two clean and dry grinding mouth Erlenmeyer flask While each added 5mL water, ground glass stoppered. A sample was weighed (accurate to 0.0001g) disposed therein a cone Bottle. M1 mass of the sample according to equation (1).

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