Durability of wood and wood-based products. Efficacy of preventive wood preservatives as determined by biological tests - Specification according to use class Ingestion-build-225643 thus minimizing the risk of

thus minimizing the risk of leakage currents

It applies to mounting surfaces for four-port hydraulic directional control valves which represent current practice

0 ng/l to 10 000 ng/l for PFOS and 10 ng/l to 10 000 ng/l for PFOA

These methods will be used in order to produce solutions for the determination of metals

Durability of wood and wood-based products. Efficacy of preventive wood preservatives as determined by biological tests - Specification according to use class Ingestion-build-225643 thus minimizing the risk of1 Scope This part of EN 599 specifies for each of the five use classes defined in EN 3351, the biological tests required for evaluating the efficacy of wood preservatives for the preventive treatment of solid timber, together with the minimum ageing tests required for the respective use class. It provides the method for calculating the critical value of a preservative. The critical value is the value that shall be used to calculate the recommended