Abstract： AS 2026:2003 pdf download.Laboratory glassware-—Density hydrometers. o REFERENCE TEMPERATURE 6.1 General The reference temperature for density hydrometers excluding the special sub-series L5OSP, M5OSP and S5OSP shall be 20°C. When used i...
AS 2026:2003 pdf download.Laboratory glassware-—Density hydrometers.
o REFERENCE TEMPERATURE
6.1 General
The reference temperature for density hydrometers excluding the special sub-series L5OSP, M5OSP and S5OSP shall be 20°C. When used in a liquid at this temperature, the hydrometers shall indicate the density of the liquid at 20°C.
6.2 Sub-series L5OSP, M5OSP and S5OSP
The reference temperature for density hydrometers of the special sub-series L5OSP. M5OSP and SSOSP shall be either 20°C or 15°C. When used in a liquid at the appropriate temperature, the hydrometer shall indicate the density of the liquid at that temperature.
7 MATERIAL AND WORKMANSHIP
The bulb and stem shall be made of clear glass which is free from stress and visible defects.
NOTE: The use of thin wall glass tubing is necessary to achieve adequate buoyancy. Solid loading material shall be fixed securely
into the bottom of the bulb.
The scale and inscriptions shall be clearly and permanently marked in black on smooth white paper and shall he securely fixed in
the stem.
The hydrometer shall be able to withstand a temperature of 80°C for a period of I h without exhibiting deterioration of any part.
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