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가속속도열량계

Standard Data and Instrument Performance

YEONJIN 2009-01-08 16:42:14 4784

Why use a standard sample?

Data from an Adiabatic Safety Calorimeter can be of value for two reasons:

1) To show the fundamental performance of the instrument with a standard sample
2) To show the performance of the instrument with any chosen sample.

Samples chosen by instrument manufacturers usually satisfy two of their criteria

1) Can be tested on their instrument to show good results.
2) Are recognised as samples commonly used.

With an adiabatic safety calorimeter the choice of ‘standard sample’ is limited. Reasons for this are:

1) The sample must be readily available in a pure form at reasonable cost.
2) Thermokinetic reaction data must be known and documented.
3) The sample should be kind to the calorimeter - for example, not explode or destroy sample containers.
4) The exotherm should be relatively simple to give nice, easy to interpret data.

To satisfy these criteria the sample most commonly used is Di-Tertiary Butyl Peroxide
(DTBP).

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Reference:
ARC Technical Information Sheet No. 99, Thermal Hazard Technology, UK

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