Accession Number:

ADA226127

Title:

Development of a Method to Measure Organotin Release Rates

Descriptive Note:

Research and development rept.

Corporate Author:

DAVID TAYLOR RESEARCH CENTER BETHESDA MD SHIP MATERIALS ENGINEERING DEPT

Personal Author(s):

• Copeland, L. L.
• Burns, K. C.

Report Date:

1989-12-01

Pagination or Media Count:

199.0

Abstract:

Organotin-containing paints provide excellent protection from fouling organisms, but they are toxic to nontarget organisms. Therefore, the Navy has pursued the development of paints with a very low release of tributyltin. Several methods have been used to determine the release rate of tributyltin from antifouling paint systems, with no standardization or correlation between the methods. A reliable laboratory method is important in comparing and ranking paints. Our initial attempts to measure release rates by pumping water past flat, painted panels evolved into a method by which the release rate of tributyltin from a particular paint is determined by painting a cylindrical surface, allowing it to dry, rotating it in water, and then periodically measuring the tributyltin concentration in the water. js

Descriptors:

• *ORGANOMETALLIC COMPOUNDS
• *FOULING ORGANISMS
• RATES
• SURFACES
• RELIABILITY
• CYLINDRICAL BODIES
• RELEASE
• PAINTS
• LABORATORIES
• ANTIFOULING COATINGS
• TIN COMPOUNDS
• BUTANES
• PUMPING
• PANELS
• MEASUREMENT
• WATER

Subject Categories:

• Coatings, Colorants and Finishes

Distribution Statement:

APPROVED FOR PUBLIC RELEASE