Древесина. Методы отбора образцов и общие требования при физико-механических испытаниях
Название (англ.):
Wood; Sampling methods and general requirements for physical and mechanical tests
Описание (англ.):
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 themechanical 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.
Дата регистрации:
19.11.75
Дата введения:
01.11.75
Код КГС:
К19
Код ОКСТУ:
5309;5409
Код ОКС(МКС):
79.040
Код ОКП:
5309;5409
Нормативные ссылки:
DIN 52180-1-1977, NEQ*NF B51-003-1985, NEQ*UNI 3252-1987, NEQ