ISO 1739:1975
Butter; Determination of the refractive index of the fat (Reference method)

Standard No.

ISO 1739:1975

Release Date

1975

Published By

International Organization for Standardization (ISO)

Status

Withdraw 2006-12

Replace By

ISO 1739:2006

Latest

ISO 1739:2006

Scope

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.

ISO 1739:1975 history

• 2006 ISO 1739:2006 Butter - Determination of the refractive index of the fat (Reference method)
• 1975 ISO 1739:1975 Butter; Determination of the refractive index of the fat (Reference method)