In the late eighties the environmental concern about treated timber increased and it is still a hot issue in the Netherlands. From the environmental point of view three phases in the timbers life cycle can be distinguished: - the production phase - the service life - the waste phase. In the Netherlands at this moment much emphasis is laid on the production phase. In 1992 this has led to a new legislation in which several environmental aspects at the plants are settled. More about this Dutch Legislation is presented at this conference by Pasveer, Militz and Homan. One of the most important aspects of this new rules for the Dutsh timber treating companies is the determination of the leaching characteristics of their products by means of a so-called shower test (presented by Havermans, Boonstra and Homan at this conference). Both the Dutch timber treating industry and the controlling bodies in the Netherlands expressed their need for an indicative on-site test which does not have the diadvantages of the shower test. The Foundation for Timber Research SHR has been asked to develop this test in the second half of 1992.

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