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GB/T 6825-2008 English PDF

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GB/T 6825-2008: Determination for release rate of organo-tin for antifouling paint on ship bottom
Status: Valid

GB/T 6825: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 6825-2008English209 Add to Cart 3 days [Need to translate] Determination for release rate of organo-tin for antifouling paint on ship bottom Valid GB/T 6825-2008
GB/T 6825-1986English199 Add to Cart 2 days [Need to translate] Determination for leaching rate on raft of organo-tin for antifouling paint on ship bottom Obsolete GB/T 6825-1986

PDF similar to GB/T 6825-2008


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Basic data

Standard ID GB/T 6825-2008 (GB/T6825-2008)
Description (Translated English) Determination for release rate of organo-tin for antifouling paint on ship bottom
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G50
Classification of International Standard 87.040
Word Count Estimation 9,994
Date of Issue 2008-01-11
Date of Implementation 2008-07-01
Older Standard (superseded by this standard) GB/T 6825-1986
Quoted Standard GB/T 3186-2006; GB/T 6682; GB/T 7790-1996; GB/T 13452.2
Regulation (derived from) China Announcement of Newly Approved National Standards No. 1, 2008 (No. 114 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 use of graphite furnace atomic absorption spectrometry with organotin antifouling paint antifouling agent in artificial seawater organotin monomer leakage rate test apparatus, procedures and methods. This standard applies to tributyltin (TBT) antifouling agent for the anti-fouling paint.

GB/T 6825-2008: Determination for release rate of organo-tin for antifouling paint on ship bottom


---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.
Determination for release rate of organo-tin for antifouling paint on ship bottom ICS 87.040 G50 National Standards of People's Republic of China Replacing GB/T 6825-1986 Anti-fouling paint organotin monomer bleeding rate measurement method Posted 2008-01-11 2008-07-01 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 6825-1986 "organotin anti-fouling paint oozing monomer real sea for determination of law." This standard and GB/T 6825-1986 has compared the following changes. --- Increasing the normative references; --- Analyze organotin leakage rate instead of diphenylsulfide bar hydrazone chemical analysis by graphite furnace atomic absorption spectrometry; --- Measured by the scope of 0 ~ 35μg/100mL to 0 ~ 200μg/L; --- By the indoor artificial seawater immersion and dialysis instead of real sea environment and natural seawater soaking dialysis; --- Test cycle by a set date instead of monthly sampling test; --- Sample substrate made of polycarbonate or polymethacrylate cylindrical test glass plate instead of the polyester, prepared by the method of spin exudate Turn the test instead of the oscillation test. 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 paint pigment (SAC/TC5) centralized. This standard was drafted. China Shipbuilding Industry Corporation seventh twenty-five Institute of Marine Research Institute of Chemical Industry, China National Chemical Construction Corporation Changzhou coating Chemical Research Institute. The main drafters of this standard. Yao Jinghua, Aplication Suchun Hai, Ye Zhang group, Chennai Hong, Xu Qi beginning, money Ye Miao, Yu Gang. This standard was first released in September 1986, this is the first revision. Anti-fouling paint organotin monomer bleeding rate measurement method

1 Scope

This standard specifies the graphite furnace atomic absorption spectrometry organotin antifouling agents in antifouling paints artificial seawater organotin monomer Leakage rate test equipment, procedures and methods. This standard applies to tributyltin (TBT) antifouling agent of anti-fouling paint.

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 6682-1992, neq ISO 3696. 1987) GB/T 7790-1996 Test method for rust resistance to cathodic disbondment GB/T 13452.2 Paints and varnishes - Determination of film thickness (GB/T 13452.2-1992, eqv ISO 2808. 1974) Principle 3 Coated with an antifouling paint containing test tube immersed in artificial sea-water storage tank after a certain time interval, the test tube from the storage tank Removed, placed in the same independent fitted artificial sea-water leakage rate test vessel, the rotation is completed and then back into the reservoir. Then take a certain The amount of leakage rate test container exudate, after washing the organic solvent extraction and 3% NaOH solution by graphite furnace atomic absorption spectrometry Or effective way to meet the current precision determination of tin organic phase analysis to calculate the concentration of exudate organotin monomer, whereby Calculated leakage rate anti-fouling paint organotin monomer.

4 instruments and equipment

4.1 Test tube. polymethacrylate or polycarbonate cylindrical, the outer diameter of the cylindrical  (65 ± 5) mm, high 130mm ~ 150mm; Test Two cylinder seal must use water-resistant materials, and bonded at one end a connecting rod, so that there is a sufficient length of the rotary device is connected. 4.2 Storage tank. Use inert material (polycarbonate) manufacturing volume requires at least four test tube can be immersed. Storage tank artificial sea Water should be circulated through a pump and filter means water flow settings and select the type of filter must meet to maintain artificial seawater TBT Content of less than 100μg/L requirements, if necessary, to increase the number of the pump or filter. Water flow rate is usually set as follows. 2 to 8 times through Ring/h. Inlet and outlet of the circulating water should be provided in the appropriate position, so that the artificial sea-water tank can be uniform and relatively smooth, uniform Flow rate flowing through the test tube, pH value of artificial seawater controlled between 7.8 to 8.2, the salinity of 3.0% to 3.5%, should be equipped with heaters to sink Control water temperature (23 ± 2) between ℃, shown in Figure 1.

1 a schematic diagram of a storage tank


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