The Australian Standard (AS. 3660.3 – 2000) for assessment of candidate graded particle termite barriers is reviewed and suggestions for amendments are made. Areas requiring amending in light of current biological knowledge involve the inclusion of proprietary or patented systems rather than generic types; selection of test termites in the genus Coptotermes; duration of test periods; and inadequate detail proffered in the experimental design section (2.4.5) to ensure that all evaluators are conducting bioassays under similar standard conditions of temperature and relative humidity to ensure compliance with the performance criteria; and emphasise laboratory procedures that will accurately predict field performances.

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