GB/T 6825-2008Determination for release rate of organo-tin for antifouling paint on ship bottom (English PDF)
船底防污漆有机锡单体渗出率测定法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
January 11, 2008
Implementation date
July 1, 2008
Scope
GB/T 6825-2008 is the English-translated version of 船底防污漆有机锡单体渗出率测定法.
GB/T 6825-2008 is the Chinese standard "Determination for release rate of organo-tin for antifouling paint on ship bottom".
Its scope clause reads: 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.
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Document preview — GB/T 6825-2008
National Standard of the People's Republic of China
- ICS
- 87.040
- Classification
- G 50
- Replacing
- GB 6825-1986
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 4.1 Test tube
- 4.2 Storage tank
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 u00d8 (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 °C, shown in Figure 1.
1 a schematic diagram of a storage tank […]
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Similar standards
Editions of GB/T 6825
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 6825-2008 | Determination for release rate of organo-tin for antifouling paint on ship bottom | current edition | Current |
| GB 6825-1986 | Determination for release rate of organo-tin for antifouling paint on ship bottom | previous edition | Superseded |
This page sells the current edition, GB/T 6825-2008. Earlier editions are listed for reference only.
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