ASTM D70 – Density of Semi-Solid Bituminous Materials
ASTM D70 – IP 190 – ISO 3838 – JIS K2265 – DIN 52 004
This test method covers the determination of the relative density and density of semi-solid bituminous materials, apshalt cements, and soft tar pitches by use of a pycnometer. The sample is placed in a calibrated pycnometer. The pycnometer and sample are weighed, then the remaining volume is filled with water. The filled pycnometer is brought to the test temperature, and weighed. The density of the sample is calculated from its mass and the mass of water displaced by the sample in the filled pycnometer. The bath has place for nine pycnometers.
The temperature range is from ambient +5 ºC to 250 ºC. On the TC16 a ridge is mounted to support the adjustable brackets for pycnometers. These brackets can be used for Hubbard or Gay-Lussac pycnometer. Each bracket can accommodate three pycnometers. Maximum three brackets can be placed in one TC16. Either a bracket for Hubbard or for Gay-Lussac pycnometers needs to be bought depending which type of pycnometer will be used. In order to work @ 15 ºC or @ 25 ºC an external TLC15-5 circulator needs to be connected.