IS 4970 : 1973 Key for identification of commercial timbers
UDC 674.03 : 634.0.811 | CED 9 |
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Reaffirmed 2020 |
1 Scope
1.1 This standard covers a simply operated punched card key forthe field identification of commercial timbers of India, bothsoftwoods (coniferous) and hardwoods (non-coniferous) based ontheir general properties and anatomical characteristics visibleunder a hand lens.