Members’ Directory and Buyers’ Guide 2014
Code of Conduct
5.
No Member shall require any producer or seller to supply any product deliberately mis-marked or unmarked, which may give a false impression of the grade, origin, whether or not kiln dried, or structural grade of the goods in question.
6.
No Member will alter or deface any manufacturer’s product or packing marks with the intention of misrepresenting the product’s grade or description.
7. 8.
Structural grade stamps where applied must comply with the marking requirements of BS 5756.
In cases where Members believe a breach of the Code of Practice has been committed as a result of product misrepresentation, or where any Member knowingly contravenes any part of the Code it is agreed that the allegation must be reported to the TTF via the TTF Code of Conduct Disciplinary Procedure, and where appropriate to legal or government authorities. Members will also co-operate fully in any subsequent investigation and any resulting disciplinary proceedings, and abide by its findings.
9.
Members undertake to ensure that all relevant personnel employed by them will be conversant with and abide by the appropriate Codes of Practice and their implications.
10.
Members undertake to carry out random consignment inspections in respect of both imported and locally purchased products in order to verify that all product markings and descriptions accord with the requirements of the Code of Practice.
Conversion To Metric Measure of Imperial Timber
Grading Rules
Hardwood timber is produced in the country of origin according to standard sets of grading rules, which not
only define the quality of timber but also the standard sizes and measuring tolerances. The table below shows those rules most often applied to timber entering the UK market, the geographical areas in which they are used and whether they define sizes as metric or imperial.
Hardwood Export Standard
Malaysian Grading Rules
Australian
Grading Standards NHLA
SATA/FPIB Russia Metric
Far East (Malaysia, Indonesia) Australia
North & South America China
West Africa European
NB: Metric & Imperial
Imperial Imperial
Metric & Imperial Metric
There are no European grading rules as such, but a number of EN Standards contain important information on standard sizes, measuring tolerances and qualities. These include:
BS EN 336- Structural Timber. Sizes. Permissible Deviations.
BS EN 1309- Round And Sawn Timber. Method Of Measurement Of Dimensions. Sawn Timber (includes hardwood and softwood, square edged and unedged, excludes tropical timber).
BS EN 1312
Round And Sawn Timber. Determination Of The Batch Volume Of Sawn Timber.
BS EN 1313-2 Round And Sawn Timber. Permitted Deviations And Preferred Sizes. Hardwood Sawn Timber.
Timber is graded at a high moisture content in the source
www.ttf.co.uk 27
Metric & Imperial
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