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GB/T 6750-2007 English PDF

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GB/T 6750-2007: Paints and varnishes -- Determination of density -- Pycnometer method
Status: Valid

GB/T 6750: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
GB/T 6750-2007174 Add to Cart 3 days Paints and varnishes -- Determination of density -- Pycnometer method Valid
GB/T 6750-1986199 Add to Cart 2 days Paints and varnishes--Determination of density Obsolete

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Basic data

Standard ID: GB/T 6750-2007 (GB/T6750-2007)
Description (Translated English): Paints and varnishes -- Determination of density -- Pycnometer method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G50
Classification of International Standard: 87.040
Word Count Estimation: 9,993
Date of Issue: 2007-09-11
Date of Implementation: 2008-04-01
Older Standard (superseded by this standard): GB/T 6750-1986
Quoted Standard: GB/T 3186-2006; GB/T 6682-1992; GB/T 20777-2006
Adopted Standard: ISO 2811-1-1997.IDT
Regulation (derived from): China Announcement of Newly Approved National Standards No. 10 of 2007 (No. 110 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 applies to paints, varnishes and related products, sampling and testing. This standard specifies the use of pycnometer to measure paint, varnishes and related products density approach. This method is suitable for the test temperature low, medium viscosity material density. Hubbard pycnometer can be used for high viscosity material density.

GB/T 6750-2007: Paints and varnishes -- Determination of density -- Pycnometer 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.
Paints and varnishes. Determination of density. Pyknometer method ICS 87.040 G50 National Standards of People's Republic of China GB/T 6750-2007/ISO 2811-1.1997 Replacing GB/T 6750-1986 Paints and varnishes - Determination of density Pycnometer method (ISO 2811-1.1997, Paintsandvarnishes-Determination ofdensity-Part 1. Pyknometermethod, IDT) Posted 2007-09-11 2008-04-01 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 2811-1.1997 "Paints and varnishes - Determination of density - Part 1. Pyknometer" (in English). This standard replaces GB/T 6750-1986 "Paints and varnishes - Determination of density." The previous version of Standard GB/T 6750-1986 main technical differences are as follows. --- Front line version is equivalent to using ISO 2811. 1974; --- This standard specifies the standard test temperature, increasing the density of non-standard test temperature is calculated; --- Clearly defines the volume of metal pycnometer volume, the proportion of glass bottles by 20mL ~ 100mL to 10mL ~ 100mL; --- Changed the balance accuracy requirements; --- Increased use dust cover provisions; --- Increased the number of measurements and test sample requirements; --- Modified step pycnometer calibration. Appendix A of this standard is a normative appendix, Appendix B is an informative annex. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee paint pigment. This standard drafting units. China National Chemical Construction Corporation, Changzhou coating Chemical Research Institute. The main drafters of this standard. Zhi-Ping Wu, Shen Su River. This standard was first published in 1986, this is the first revision. The standard commission and the National Standardization Technical Committee paint pigment responsible for the interpretation. GB/T 6750-2007/ISO 2811-1.1997 Paints and varnishes - Determination of density Pycnometer method

1 Scope

This standard is one of the series of standards for paints, varnishes and sampling and testing of related products. This standard specifies the use of a pycnometer for Paints, varnishes and related products density method. This test method is applicable to low temperatures, the viscosity measurement of the density of the material. Hubbard pycnometer for high viscosity material density Determination.

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) Laboratory use specifications and test methods (. 1987 neq ISO 3696) GB/T 6682-1992 Analysis GB/T 20777-2006 Paints and varnishes examination and preparation of samples (ISO 1513.1992, IDT)

3 Terms and Definitions

This standard uses the following terms and definitions. 3.1 Mass per unit volume of the object, in g/mL represent. Principle 4 The proportion of bottles filled with the measured product, from the quality and the known specific gravity bulk specific gravity bottle bottles products calculate the density of the tested products.

5 Temperature

Effect of temperature on the density, there was a significant relationship between loading performance, and with the type of product change. This standard specifies the test temperature (23 ± 0.5) ℃, can also be tested at other agreed temperature. Test should be tested products and the specific gravity bottle is adjusted to a predetermined temperature or agreed upon, and shall be maintained during the test temperature of no more than 0.5 ℃.

6 Instruments

6.1 pycnometer 6.1.1 pycnometer metal, or a volume of 50mL 100mL, the cross-section of corrosion-resistant materials for the finishing of a circular cylinder formed Body, above the center with a fitted lid has a suitable hole. The inside of the lid is concave (see Figure 1). 6.1.2 glass pycnometer, volume of 10mL or 100mL (Gay - Lo Sark or Hubbard pycnometer pycnometer) (see Fig. 2a and 2b). 6.2 Analytical balance, 50mL following pycnometer accurate to 1mg, 50mL to 100mL bottle exact proportion to 10mg. 6.3 Thermometers, accurate to 0.2 ℃, indexing is 0.2 ℃ or less. GB/T 6750-2007/ISO 2811-1.1997
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