IWPA Grading Rules
The International Wood Products Association has helped to establish grading rules when there is a need identified internationally. International grading rules and standards listed below are voluntary standards that can assist in the importing wood products.
Voluntary Grading Rules for Lauan Doorskins
Jointly developed by IWPA, NWMA (National Woodwork Manufacturers Association) and TPMEA (Taiwan Plywood Manufacturers & Exporters Association). 8pp: Last revised, 1981.
Imported Rotary Cut Veneer & Platforms Standards
The IWPA Procurement Standard for Imported Hardwood Plywood (IWPA-2011) describes plywood graded and marked in thicknesses of 2.7 mm through 25 mm made from tropical hardwoods. The Standard contains quality criteria; test methods; provisions for packing, product marking, claims; and definitions. It is intended for voluntary use by North American buyers and world suppliers of hardwood plywood products.
Tropical Hardwood Machined Lumber Products Grading Rules
Standards jointly adopted by the IWPA Lumber Products Committee, The Malaysian Timber Industry Board, and the Malaysian Wood Moulding Council to establish quality levels for premium, standard and utility grades. Pdf only (or duplicate copies). 44pp. Last revised, 1987.
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