IS 4970 : 1973 Key for identification of commercial timbers

UDC 674.03 : 634.0.811 CED 9
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.