>ISO Standards>ISO 1739:1975-Butter-Determination of the refractive index of the fat (Reference method)-Buythis standard
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immediate downloadReleased: 1975
ISO 1739:1975
Butter
CURRENCY
Standard´s number:
ISO 1739:1975
Pages:
1
Edition:
1
Released:
1975
Language:
English
DESCRIPTION
ISO 1739:1975
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.