Describes a method of measurement which uses a refractometer with a scale graduated in refractive index units to the third decimal place and having prisms heated by means of a circulating liquid at 40 degrees centigrade, the temperature being thermostatically controlled to within +/- 0.1 degrees centigrade. A sodium vapour lamp shall be used as a light source.
Текущий статус : WithdrawnДата публикации : 1975-12
Версия : 1Число страниц : 1
Технический комитет:Milk and milk products