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BS EN 117:2023

BS EN 117:2023

$142.49

Wood preservatives. Determination of toxic values against Reticulitermes species (European termites) (Laboratory method)

Published By Publication Date Number of Pages
BSI 2023 24
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This document specifies a method for the determination of the toxic values of a wood preservative against the Reticulitermes species of European termites. This method is applicable to: – water-insoluble chemicals which are being studied as active insecticides; – organic water-dispersible formulations as supplied or as prepared in the laboratory by dilution of concentrates; and – water-soluble materials, for example salts. NOTE This method can be used in conjunction with an ageing procedure, for example EN 73 or EN 84.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 1 Scope
2 Normative references
3 Terms and definitions
4 Principle
8 5 Test materials
5.1 Biological material
5.2 Products and reagents
5.3 Apparatus
9 6 Sampling
10 7 Test specimens
7.1 Species of wood
7.2 Wood quality
7.3 Provision of test specimens
7.4 Dimensions of test specimens
7.5 Number and distribution of test specimens
11 8 Procedure
8.1 Preparation of test specimens
8.1.1 Conditioning of test specimens prior to treatment
8.1.2 Treatment of test specimens
8.1.2.1 Preparation of treatment solutions
8.1.2.2 Impregnation
12 8.1.3 Drying and conditioning of the test specimens after treatment
8.2 Exposure of the test specimens to the insects
8.2.1 Collecting and selecting the termites
13 8.2.2 Installation of the termites
8.2.2.1 With sand
8.2.2.2 With aluminium-iron-magnesium silicate
8.2.2.3 With polyurethane foam
8.2.3 Exposure
14 8.3 Conditions and duration of test
8.3.1 Exposure
15 8.3.2 Maintaining of moisture content
8.3.2.1 General
8.3.2.2 Sand
8.3.2.3 Aluminium-iron-magnesium silicate
8.3.2.4 Polyurethane foam
8.4 Examination of the test specimens and colonies – Assessments
8.4.1 General
16 8.4.2 Visual examination
8.4.3 Validity of the tests
17 9 Expression of results
10 Test report
19 Annex A (informative)Example of a test report
21 Annex B (informative)Example of a method of culturing termites
22 Annex C (informative)Environmental, health and safety precautions within chemical/biological laboratory

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BS EN 117:2023
$142.49