GB/T 30648.4-2015 English PDF

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GB/T 30648.4-2015: Paints and varnishes -- Determination of resistance to liquids -- Part 4: Spotting methods
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 30648.4-2015	209	Add to Cart	3 days	Paints and varnishes -- Determination of resistance to liquids -- Part 4: Spotting methods	Valid

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GB/T 30789.1   GB/T 30789.4   GB/T 30648.2   GB/T 30648.5   GB/T 30648.3   GB/T 30646   

Basic data

Standard ID: GB/T 30648.4-2015 (GB/T30648.4-2015)
Description (Translated English): Paints and varnishes -- Determination of resistance to liquids -- Part 4: Spotting methods
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G50
Classification of International Standard: 87.040
Word Count Estimation: 10,149
Date of Issue: 2015-05-15
Date of Implementation: 2015-10-01
Quoted Standard: GB/T 3186; GB/T 6682-2003; GB/T 9271; GB/T 9278; GB/T 13452.2; GB/T 20777; ISO 4628-1; ISO 4628-2
Adopted Standard: ISO 2812-4-2007, MOD
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 general test method to measure single topical coating or composite coating resistant test solution liquid or paste action. The method can determine the effect of the test liquid on the coating surface, or the extent of damage to the substrate.

GB/T 30648.4-2015: Paints and varnishes -- Determination of resistance to liquids -- Part 4: Spotting methods

---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 resistance to liquids Part 4.. Spotting methods ICS 87.040 G50 National Standards of People's Republic of China Paints and varnishes - Determination of resistance to liquids Part 4. drip method Part 4. Spottingmethods (ISO 2812-4.2007, MOD) Issued on. 2015-05-15 2015-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 30648 "Paints and varnishes - Determination of resistance to liquids" is divided into the following five sections. --- Part 1. Immersion in liquids other than water; --- Part 2. Water immersion method; --- Part 3. Using the method of the absorbent medium; --- Part 4. drip method; --- Part 5. The oven has a temperature gradient method. This section GB/T Part of 430,648. This section drafted in accordance with GB/T 1.1-2009 given rules. This section uses redrafted Law Amendment uses ISO 2812-4.2007 "Paints and varnishes - Determination of resistance to liquids - Part 4. Point Drop method. " This part of ISO 2812-4.2007 as compared to the existence of technical differences between the terms of these differences has been involved through its outer margins Vertical single-line position (|) have been marked, the list given in Appendix A corresponding technical differences and their causes. This section also made the following editorial changes. --- Chapter 4 shall be renumbered column item; --- Increase the informative Appendix A, the ISO 2812-4.2007 Information in Appendix A to this standard informative Appendix B. This part is proposed by the China Petroleum and Chemical Industry Association. This part of the National Standardization Technical Committee and the pigment coating (SAC/TC5) centralized. This section drafted by. CNOOC Changzhou Paint Chemical Research Institute Co., Ltd., Guangzhou Institute of Materials Co., Ltd., Taicang City High Molecular Materials R & D Center Co., Ltd., Guangzhou standard Geda laboratory equipment supplies Ltd., Shenzhen Hirota Decoration Group Co., Ltd. The main drafters of this section. Wu Zhiping, Li Xin, Lu Yong, Wang Chongwu, Li Shaojiang. Paints and varnishes - Determination of resistance to liquids Part 4. drip method

1 Scope

GB/T 30648 provisions of this section using drip method to measure single coating or composite coating resistant to liquid or paste test fluid action General test methods. The method can determine the effect of the test solution on the coating surface, or the extent of damage to the substrate.

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. GB/T 3186 Paints, varnishes and raw materials for paints and varnishes - Sampling (GB/T 3186-2006, ISO 15528.2000, IDT) GB/T 6682-2008 analytical laboratory use specifications and test methods GB/T 9271 Paints and varnishes - Standard panels for (GB/T 9271-2008, ISO 1514.2004, MOD) GB/T 9278 paint sample conditioning and testing temperature and humidity (GB/T 9278-2008, ISO 3270. 1984, IDT) GB/T 13452.2 Paints and varnishes - Determination of film thickness (GB/T 13452.2-2008, ISO 2808.2007, IDT) GB/T 20777 Paints and varnishes examination and preparation of samples (GB/T 20777-2006, ISO 1513.1992, IDT) The number and size of uniform appearance and degree of change ISO 4628-1 Paints and varnishes - Evaluation of degradation of coatings defects identified Part 1. General and identification system (Paintsandvarnishes-Evaluationofdegradationofcoatings-Designation ofquantityandsizeofdefects, andofintensityofuniformchangesinappearance-Part 1. Generalin- troductionanddesignationsystem) The number and size of uniform appearance and degree of change ISO 4628-2 Paints and varnishes - Evaluation of degradation of coatings defects identified Part 2. Evaluation of gassing (Paintsandvarnishes-Evaluationofdegradationofcoatings-Designation ofquantityandsizeofdefects, andofintensityofuniformchangesinappearance-Part 2. Assessment ofdegreeofblistering) Principle 3 The test sample droplets painted board, according to agreed criteria to assess the changes in the test area.

4 Equipment

Normal laboratory equipment and the following instruments. --- Pipette. Pipette test for about 0.1mL of liquid; --- Buret. 50mL, suitable for testing liquid drops out; --- Dish. diameter 60mm, height 20mm. ......

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