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GB/T 6744-2008 English PDF

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Q: Should I purchase the latest version GB/T 6744-2008?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 6744-2008 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$154.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 6744-2008: Binders for paints and varnishes -- Determination of saponification value -- Titrimetric method
Status: Valid

GB/T 6744: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 6744-2008	154	Add to Cart	3 days	Binders for paints and varnishes -- Determination of saponification value -- Titrimetric method	Valid
GB/T 6744-1986	239	Add to Cart	2 days	Binders for paints and varnishes--Determination of saponification value	Obsolete

Similar standards

GB/T 6739 GB/T 9263 GB/T 5208 GB/T 9754 GB/T 6743

Basic data

Standard ID: GB/T 6744-2008 (GB/T6744-2008)
Description (Translated English): Binders for paints and varnishes -- Determination of saponification value -- Titrimetric method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G50
Classification of International Standard: 87.040
Word Count Estimation: 8,824
Date of Issue: 2008-06-04
Date of Implementation: 2008-12-01
Older Standard (superseded by this standard): GB/T 6744-1986
Quoted Standard: GB/T 3186-206; GB/T 6682; GB/T 12805; GB/T 12808
Adopted Standard: ISO 3681-1996, IDT
Regulation (derived from): Announcement of Newly Approved National Standards No. 9, 2008 (No. 122 overall)
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 order titration paints and varnishes are esterified acid content (including paint base in the free acid and anhydride content) steps. Because different saponification resistant binder different, so the standards are applicable to the limitations. If necessary, a more severe conditions The experiment was repeated to test the complete saponification value, such as the extension saponification time, increase the concentration of potassium hydroxide solution, or with a higher boiling alcohol as a solvent. This standard does not apply outside the normal saponification reaction with an alkali -based paint can be further. Appendix A provides a hard lacquer base saponification saponification value method.

GB/T 6744-2008: Binders for paints and varnishes -- Determination of saponification value -- Titrimetric 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.
Binders for paints and varnishes. Determination of saponification value. Titrmetric method ICS 87.040 G50 National Standards of People's Republic of China GB/T 6744-2008/ISO 3681.1996 Replacing GB/T 6744-1986 Paints and varnishes - Determination of saponification value titration (ISO 3681.1996, IDT) Posted 2008-06-04 2008-12-01 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 3681.1996 "Paints and varnishes - Determination of saponification value titration" (in English). The editorial changes made the following standard. --- Deleted international standards foreword; --- "International standard" is replaced by "the national standard." This standard replaces GB/T 6744-1986 "Paints and varnishes - Determination of saponification value." This standard and GB/T 6744-1986 main technical differences are as follows. --- Front line version is equivalent to using ISO 3681. 1983. --- Increasing the principle test method. --- Modify the definition and calculation formula saponification value. Appendix A of this standard is a normative appendix. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee paint pigment. This standard was drafted. CNOOC Changzhou coating Chemical Research Institute. The main drafters of this standard. Huang Yidong. This standard was first published in 1986. GB/T 6744-2008/ISO 3681.1996 Paints and varnishes - Determination of saponification value titration

1 Scope

This standard specifies the order of the titration acid content of paints and varnishes are esterified (including paint base and free acid anhydride Content) step. Because of the resistance to saponification different binder different, so this standard has limitations applicable on. If necessary, under more severe conditions The experiment was repeated to test the complete saponification value, such as extending the saponification time and increase the concentration of potassium hydroxide solution, or as a solvent with a higher boiling alcohol. This standard does not apply beyond the normal saponification base may be further reacted with the paint base. Appendix A provides for determination of the saponification value of the binder difficult saponification.

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. GB/T 3186-2006 Paints, varnishes and raw materials for paints and varnishes - Sampling (ISO 15528.2000, IDT) GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD) GB/T 12805 Laboratory glassware burette (GB/T 12805-1991, neq ISO 385-1. 1984) GB/T 12808 standard laboratory glassware single line pipette (GB/T 12808-1991, neq ISO 648. 1977)

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Alkali metal salts of the organic acid derivative is generated in the process. 3.2 Potassium hydroxide (KOH) in milligrams of saponification 1g sample consumed. Principle 4 After the sample is determined by a preliminary experiment saponification conditions (concentration of potassium hydroxide solution, saponification time), the sample hydroxide under reflux conditions Potassium solution was boiled under the saponification condition. Hydrochloric acid solution was titrated with standard hot solution, optionally indicator titration or potentiometric titration.

5 Reagents

Reagents shall be used for analytical reagent grade, and purity conforming GB/T 6682 of at least three predetermined water. 5.1 Toluene. not saponification or other suitable solvent. 5.2 potassium hydroxide solution. the concentration of Ba (KOH) = 0.5mol isopropanol, ethanol or methanol solution/L of. NOTE. saponification demanding conditions, the reagent may be potassium hydroxide Ba (KOH) = 2mol/L in ethanol, or ethylene glycol or diethylene glycol dubbed The potassium hydroxide solution. You can use isopropyl alcohol or methanol, ethanol, an alternative place, use isopropyl alcohol. Applicability and ethanol isopropanol solution considerably, and its toxicity to Less than methanol solution. GB/T 6744-2008/ISO 3681.1996 ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 6744-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 6744-2008_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 6744-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 6744-2008_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 6744-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 6744-2008 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.