Specifies the selective and mechanical sampling, conditioning of selected material and the preparation of test pieces. Selective method should be used in cases where the coefficients of variation of the wood properties for one tree and between trees of one species are known and selection is possible from a large number of trees, logs and pieces of sawn timber, and the mechanical method when the mean values of the above coefficients are known and selection is possible only from a limited number of trees, logs and pieces of sawn timber.
ISO 3129:1975 history
2019ISO 3129:2019 Wood — Sampling methods and general requirements for physical and mechanical testing of small clear wood specimens
2012ISO 3129:2012 Wood - Sampling methods and general requirements for physical and mechanical testing of small clear wood specimens
1975ISO 3129:1975 Wood; Sampling methods and general requirements for physical and mechanical tests