Вещества поверхностно-активные. Определение межфазного натяжения по объему капли
Название (англ.):
Surface active agents; Determination of interfacial tension; Drop volume method
Описание (англ.):
The volume of a drop of an aqueous phase formed at the end of a vertical capillary tube is measured when it detaches from the tube in contact with the organic phase. The interfacial tension between two liquid phases is obtained by balancing the weight of the drop with the interfacial tension force supporting it and applying a correction factor.Then the interfacial tension is calculated from the volume of the falling drop, the outer capillary radius, the density difference between the two liquid phases and the acceleration due to gravity.
Дата регистрации:
01.02.88
Дата введения:
01.12.87
Код КГС:
Л29
Код ОКСТУ:
2480;2409
Код ОКС(МКС):
71.100.40
Код ОКП:
2480;2409
Нормативные ссылки:
NF ISO 9101(1988/AFNOR), EQV*NBN T 63-164(1988/IBN), EQV*NEN-ISO 9101(1988/NNI), EQV*NF T73-062(1988/AFNOR), EQV