Глинозем, преимущественно используемый для производства алюминия. Определение удельной поверхности путем адсорбции азота. Одноточечный метод
Название (англ.):
Aluminium oxide primarily used for the production of aluminium; Determination of specific surface area by nitrogen adsorption; Single-point method
Описание (англ.):
At ambient temperature and at atmospheric pressure nitrogen is introduced into two bottles of equal volume one of which contains the test portion while the other is empty. The connected bottles are immersed in the refrigerant bath of liquid nitrogen. Since some nitrogen isadsorbed by the sample a differential pressure occurs between the two bottles and is measured by means of a differential manometer. From this difference, the number of molecules absorbed on the surface is calculated. The area occupied by an absorbed nitrogen molecule is taken as 16.2 x 10
Дата регистрации:
01.09.86
Дата введения:
01.08.86
Код КГС:
А39
Код ОКСТУ:
1709;1710
Код ОКС(МКС):
71.100.10
Код ОКП:
1709;1710
Нормативные ссылки:
NF ISO 8008-1987, EQV*NBN T 03-425(1988/IBN), EQV*NF T20-219(1987/AFNOR), EQV*BS 4140 PART 23(1987/BSI), EQV
Ключевые слова:
ADSORPTION ALUMINIUM ALUMINIUM INORGANIC COMPOUNDS ALUMINIUM OXIDE ANALYSIS METHODS APPARATUS DETERMINATION INDUSTRIAL PRODUCTS NITROGEN PRODUCTION SPECIFIC AREA SURFACES TESTING TESTS ALUMINIUM INO AREA