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.
WITHDRAWN
SSH ISO 1739:2002
95.99
Withdrawal of Standard
9 shk 2010
PUBLISHED
SSH ISO 1739:2006
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