GB/T 5211.14-2021General methods of test for pigments and extenders - Part 14: Determination of residue on sieve - Mechanical flushing procedure (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"

Drafting.

This document is part 14 of GB/T 5211.GB/T 5211 has released the following parts.

---Cold extraction method for determination of water-soluble pigments;

---Pigment water soluble matter determination thermal extraction method;

---General test methods for pigments and extenders. Part 3.Determination of volatiles at 105°C;

---Determination of pigment filling volume and apparent density;

---Pigment resistance test method;

---General test methods for pigments and extender pigments Part 6.Determination of pH value of aqueous suspension;

---Determination of pigment water-soluble sulfate, chloride and nitrate;

---Determination of electrical resistivity of pigment water extract;

---Determination of pH of pigment water extract;

--- General test methods for pigments and extender pigments. Part 14.Determination of sieve residues. Mechanical flushing method;

--- General test methods for pigments and extender pigments Part 15.Determination of oil absorption;

---Comparison of the decoloring power of white pigments;

---Comparison of white pigment contrast ratio (hiding power);

--- General test methods for pigments and extender pigments. Part 18.Determination of residue on sieve water method (manual operation);

--- Visual comparison method for determination of relative tinting strength and diluted color of colored pigments;

---Comparative chromaticity method for the colors of white, black and colored pigments in the natural color system.

This document replaces GB/T 5211.14-1988 "Mechanical Flushing Method for the Determination of Pigment Sieve Residues", and is consistent with GB/T 5211.14-1988

In addition to structural adjustments and editorial changes, the main technical changes are as follows.

---The normative reference document "GB/T 6005" was added, and "GB 9285" was changed to its revised version "GB/T 3186" (see Chapter 2, 1988

Chapter 2 of the Year Edition);

---Changed terms and definitions (see 3.1, Chapter 3 of the 1988 edition);

--- Deleted the content about pressurized tap water injection (see 5.1 in the 1988 edition);

---The material and size requirements of the container have been added (see 6.1.2); the water flow requirements have been changed (see 6.1.3, 6.1.2 of the 1988 edition),

The content of the test sieve requirements (see 6.1.4, 6.1.3 of the 1988 edition), the description and requirements of the accuracy of the balance (see 6.3, the 1988 edition of 6.1.3)

6.3);

---Changed the preparation method of the dispersion (see 8.3, 7.2 of the 1988 edition); added the judgment that the fine particles almost completely pass the test sieve

The method and the requirements for recording the corresponding time (see 8.4.1); added that if the sieve residue contains foreign matter, its storage should be recorded.

In and nature of the provisions (see 8.5);

---Changed the provisions of test data processing (see Chapter 9, Chapter 8 of the 1988 edition);

---Change the content of the test report (see Chapter 10, Chapter 9 of the 1988 edition).

This document uses the redrafting method to amend and adopt ISO 787-18.1983 ``General Test Methods for Pigments and Extender Pigments Part 18.Sieve

Determination of residue by mechanical flushing method.

Compared with ISO 787-18.1983, this document is different in structure. Appendix A lists the differences between this document and ISO 787-18.1983.

A list of chapter number comparisons.

Compared with ISO 787-18.1983, this document has technical differences.

The vertical single line (|) of the position is marked, and the corresponding technical differences and their reasons are listed in Appendix B.

The following editorial changes have been made to this document.

---Changed the file name, in order to be consistent with the existing standard numbering method, the file name was changed to "Pigment and Extender Pigment General Test Method

Method Part 14.Determination of Sieve Residues Mechanical Flushing Method.

Introduction

GB/T 5211 is a series of standards for general test methods for pigments and extender pigments. Due to historical reasons, the names of some of the standards formulated earlier

The unified guiding element "General Test Methods for Pigments and Extender Pigments" is not used. In addition, there are a few common test methods for pigments and extender pigments.

The independent number of the standard is not included in the various parts of the national standard GB/T 5211.It will be gradually processed in recent years and in the future formulation or revision work.

Smoothly, standardize the format of the standard number and standard name, and improve the standard system. GB/T 5211 "General Test Methods for Pigments and Extender Pigments"

The correspondence between the various parts to be formulated or revised and the current standards are shown in Table 1.

Table 1 Correspondence between each part of GB/T 5211 to be formulated or revised and the current standard

Number of issued document

GB/T 5211.1-2003

Determination of water-soluble pigments by cold extraction

How to take

GB/T 5211.1

General test methods for pigments and extender pigments Part 1

Part. Determination of water-soluble matter by cold extraction method

GB/T 5211.2-2003

Determination of water-soluble pigments by hot extraction

How to take

GB/T 5211.2

General test methods for pigments and extender pigments No. 2

Part. Determination of Water-soluble Matter Hot Extraction Method

GB/T 5211.3-2020

General test of pigments and extender pigments

Method Part 3.Wave at 105 degrees C

Hair determination

GB/T 5211.3

General test methods for pigments and extender pigments No. 3

Part. Determination of Volatile Matter at 105 degrees C

GB/T 5211.4-1985

Pigment filling volume and apparent density

Determination of

GB/T 5211.4

General test methods for pigments and extender pigments No. 4

Part. Determination of Filling Volume and Apparent Density

GB/T 5211.5-2008 Determination of pigment resistance GB/T 5211.5

General Test Methods for Pigments and Extender Pigments No. 5

Part. Tolerance Test

GB/T 5211.6-2020

General test of pigments and extender pigments

Method part 6.water suspension

Determination of pH

GB/T 5211.6

General test methods for pigments and extender pigments No. 6

Part. Determination of pH Value of Water Suspension

GB/T 1864-2012

General test of pigments and extender pigments

Comparison of method pigment colors

GB/T 5211.7

General Test Methods for Pigments and Extender Pigments No. 7

Part. Comparison of colors

GB/T 1713-2008

Determination of pigment density

Bottle method

GB/T 5211.8

General Test Methods for Pigments and Extender Pigments No. 8

Part. Determination of Density Pycnometer Method

GB/T 1710-2008 Comparison of light resistance of similar colored pigments GB/T 5211.9

General test methods for pigments and extender pigments No. 9

Part. the same type of coloring pigments with light resistance

Compare

GB/T 1711-1989

Pigment is thermally stable in drying paint

Qualitative comparison

GB/T 5211.10

General Test Methods for Pigments and Extender Pigments No.

Part 10.Pigments are thermally stable in oven-dried paints

Sexual comparison

GB/T 5211.11-2008

Pigment water-soluble sulfate, chloride and

Nitrate determination

GB/T 5211.11

General Test Methods for Pigments and Extender Pigments No.

Part 11.Water-soluble sulfate, chloride and nitric acid

Salt determination

Table 1 Correspondence between each part of GB/T 5211 to be formulated or revised and the current standard (continued)

Number of issued document

GB/T 5211.12-2007

Resistivity of pigment water extract

Determination

GB/T 5211.12

General Test Methods for Pigments and Extender Pigments No.

Part 12.Determination of electrical resistivity of water extract

GB/T 5211.13-1986

PH of pigment water extract

Determination

GB/T 5211.13

General Test Methods for Pigments and Extender Pigments No.

Part 13.Determination of the pH of the water extract

General test of pigments and extender pigments

Method part 14.residue on sieve

Mechanical flushing method

GB/T 5211.14

General Test Methods for Pigments and Extender Pigments No.

Part 14.Determination of the residue on the sieve, mechanical flushing method

GB/T 5211.15-2014

General test of pigments and extender pigments

Method part 15.oil absorption

Determination of

GB/T 5211.15

General Test Methods for Pigments and Extender Pigments No.

Part 15.Determination of oil absorption

GB/T 5211.16-2007 Comparison of white pigment's decoloring power GB/T 5211.16

General Test Methods for Pigments and Extender Pigments No.

Part 16.Comparison of White Pigment's Color Reducing Power

GB/T 5211.17-1988

White pigment contrast ratio (hiding power)

Comparison

GB/T 5211.17

General Test Methods for Pigments and Extender Pigments No.

Part 17.white pigment contrast ratio (hiding power)

Compare

GB/T 5211.18-2015

General test of pigments and extender pigments

Method part 18.residue on sieve

Determination of water method (manual operation)

GB/T 5211.18

General Test Methods for Pigments and Extender Pigments No.

Part 18.Determination of the residue on the sieve water method (manual

operate)

GB/T 5211.19-1988

The relative tinting power of the colored pigments and

Determination of Diluted Color by Visual Comparison Method

GB/T 5211.19

General Test Methods for Pigments and Extender Pigments No.

Part 19.Relative tinting strength and punching of colored pigments

Determination of light color by visual comparison method

GB/T 5211.20-1999

In the natural color system, white, black and

Comparing color of coloring pigment

Method

GB/T 5211.20

General Test Methods for Pigments and Extender Pigments No.

Part 20.In the natural color system, white, black and

Comparative chromaticity method for the color of colored pigments

Comparison of HG/T 3834-2006 Pigment Bleed Resistance GB/T 5211.21

General Test Methods for Pigments and Extender Pigments No.

Part 21.Comparison of the resistance of pigments to bleeding

HG/T 3835-2006

Determination of pigment density (using centrifuge

(Exclude entrained air)

GB/T 5211.22

General Test Methods for Pigments and Extender Pigments No.

Part 22.Determination of Density (Exclude with Centrifuge

Entrained air)

GB/T 13451.2-1992

Relative tinting strength and whiteness of colored pigments

Determination of the relative scattering power of color pigments

Photometric method

GB/T 5211.23

General Test Methods for Pigments and Extender Pigments No.

Part 23.Relative tinting strength and whiteness of colored pigments

Determination of relative scattering power of pigments by photometric method

--GB/T 5211.24

General Test Methods for Pigments and Extender Pigments No.

Part 24.Determination of the total content of polychlorinated biphenyls (PCB)

Fixed dissolution, purification and GC-MS method

General test methods for pigments and extender pigments

Part 14.Determination of the residue on the sieve, mechanical flushing method

1 Scope

This document describes the general test method for the determination of the residue on the sieve by mechanical flushing of pigments and extender pigments dispersed in water.

This document applies to pigments and extender pigments dispersed in water, as well as other powders or particles that are insoluble in water, but does not apply to water.

Pigments and extender pigments that are difficult to wet or pelletized into balls.

2 Normative references

The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations

Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to

This document.

GB/T 3186 Paint, varnish and raw material sampling for paint and varnish (GB/T 3186-2006, ISO 15528.2000, IDT)

GB/T 6005 Test sieve The basic size of the woven wire mesh, perforated plate and electroformed sheet screen hole (GB/T 6005-

2008, ISO 565.1990, MOD)

3 Terms and definitions

The following terms and definitions apply to this document.

3.1

Residue on sieve

Coarse particles remaining on the test sieve of the specified aperture during the test.

4 Principle

In the washing device, the test pigments or extender pigments dispersed in the water are driven by the rotating water stream to make centrifugal movement, and the water washes the fine particles

After passing through the test sieve, the coarse particles remain on the sieve, and the coarse particles on the sieve are weighed after being dried.

5 Reagents or materials

6 Equipment