GB/T 7789-2007 English PDF

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GB/T 7789-2007: Dynamic test method for performance of marine antifouling paint
Status: Valid

GB/T 7789: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 7789-2007	189	Add to Cart	3 days	Dynamic test method for performance of marine antifouling paint	Valid
GB/T 7789-1987	279	Add to Cart	3 days	Dynamic test method for performance of marine antifouling coatings	Obsolete

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Basic data

Standard ID: GB/T 7789-2007 (GB/T7789-2007)
Description (Translated English): Dynamic test method for performance of marine antifouling paint
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G50
Classification of International Standard: 87.040
Word Count Estimation: 7,721
Date of Issue: 2007-09-11
Date of Implementation: 2008-04-01
Older Standard (superseded by this standard): GB/T 7789-1987
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 specifies the assessment in natural seawater performance of marine antifouling coatings dynamic test methods. This standard applies to marine antifouling paints.

GB/T 7789-2007: Dynamic test method for performance of marine antifouling paint

---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.
Dynamic test method for performance of marine antifouling paint ICS 87.040 G50 National Standards of People's Republic of China Replacing GB/T 7789-1987 Ship antifouling coatings dynamic performance test methods 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 replaces GB/T 7789-1987 "ship antifouling paint antifouling properties dynamic test methods." This standard and GB/T 7789-1987 has compared the following changes. 1) increase the normative references section; 2) cancel the original standard 2.2 content; 3) cancel the original standard 3.4 content; 4) the size of the test piece from the original 250mm × 100mm × 3mm to 260mm × 100mm × 3mm; 5) Cancel CB3092-1981 "Hull Rust standards." Appendix A of this standard is an informative annex. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee coatings and pigments. This standard was drafted. China Shipbuilding Industry Corporation seventh twenty-five Institute, China National Chemical Construction Corporation, Changzhou coating Chemical RESEARCH Study hospital. The main drafters of this standard. Tim Zheng water, Aplication Suchun Hai, Yao Jinghua, Li Song. This standard was first released in May 1987, this is the first revision. Ship antifouling coatings dynamic performance test methods

1 Scope

This standard specifies the test methods for dynamic assessment in natural seawater ship antifouling paint antifouling properties. This standard applies to antifouling paints.

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 5370 antifouling panels in shallow immersion test method GB/T 8923-1988 steel surface before painting Rust grades and grade (eqv ISO 8501-1. 1988)

3 Terms and Definitions

It refers to antifouling paint a model, simulation ship is in a state of continuous operation in natural seawater and marine fouling organisms growing season When combined peg board immersion test conducted. Test Method 4 4.1 Test conditions 4.1.1 Test place Dynamic tests must be carried out in natural seawater. Dynamic testing device can be installed in the following locations. a) real sea trials floating craft; b) large natural sea pool; c) having a flow of natural seawater sea sink. 4.1.2 Dynamic test device 4.1.2.1 Dynamic test device includes a power transmission, model A holder shown in three parts, test equipment and model holder in the Appendix. Requirements model movement line speed (18 ± 2) kn, must be out in sea level 20cm or less, and can not be the model runs. Real sea immersion test 4.1.2.2 Dynamic test panels anchored when carried out according to the test method GB/T 5370 may require. 4.1.3 Dynamic test opportunity Marine fouling initial test time dynamic test should be expected based anti-fouling paints used for the test of antifouling efficiency and test sites Growing season season to choose. Should normally be in the marine fouling organism before the growing season (1-2 months) began experimenting, making full dynamic test Ministry cycle is still within the fouling organisms growing season. 4.2 Preparation of template 4.2.1 model materials and sizes 4.2.1.1 template substrate material Dynamic test panel substrate using 3mm thick carbon steel plate. 4.2.1.2 template size Dynamic test panel dimensions of 260mm × 100mm × 3mm, 4 corners of the open model has four mounting holes 7, such as 1 shown in FIG. Each antifouling dynamic test model is three. ......

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