BS EN 1390:2020 pdf free.Wood preservatives – Determination of the eradicant action against Hylotrupes bajulus (Linnaeus) larvae – Laboratory method.
BS EN 1390 describes a laboratory method of testing which gives a basis for the assessment of the eradicant action of fast and slow acting wood preservatives and of deferred acting wood preservatives against Hylotrupes bajulus. It allows determination of the lethal effect of a surface application of a preservative product on a population of larvae previously introduced into the test specimens.
The method simulates conditions in practice where a beam is treated, which is only slightly attacked and where cutting away has not exposed insect tunnels. This represents a severe test of the product.
In some particular instances, for example where the preservative is to be used on timbers of large dimensions, laminated beams, blockboard, plywood and other panel products, other test methods can be used to obtain complementary information on the effectiveness of the eradicant action of a product. Such methods lie outside the scope of this document.
This laboratory method provides one criterion by which the value of a product can be assessed. In making this assessment the methods by which the preservative may be applied should be taken into account. It is further recommended that results from this test should be supplemented by those from other appropriate tests, and above all by comparison with practical experience.
When products that are very active at low concentrations are used it is very important to take suitable precautions to isolate and separate, as far as possible, operations involving chemical products, other products, treated wood, laboratory apparatus and clothing. Suitable precautions should include the use of separate rooms, areas within rooms, extraction facilities, conditioning chambers and special training for personnel.
BS EN 1390 specifies a method for the determination of the eradicant action of a surface application of a fast and a slow acting wood preservative product or a deferred acting wood preservative product on solid wood infested with larvae of Hylotrupes bajulus (Linnaeus).
This method is applicable to:
— organic formulations, as supplied or as prepared in the laboratory by dilution of concentrates; or
— organic water-dispersible formulations, as supplied or as prepared in the laboratory by dilution of concentrates; or
— water-soluble products, for example, salts.
NOTE: An ageing procedure cannot be combined with this method.BS EN 1390 pdf download.