Patent ID: 9645069
Date: 2017-05-09
CPC Classifications: G01N

Claim:
1. An adsorption characteristic measuring apparatus that supplies a predetermined adsorption gas to a sample accommodated in a sample tube to measure an adsorption isotherm, the apparatus comprising: a refrigerant container that is filled with a constant temperature refrigerant having the sample tube immersed therein; a fitting portion that is provided at an opening of the sample tube; an adsorption gas supply portion that supplies the adsorption gas; a manifold that is connected via an on-off valve for the sample tube to the fitting portion; a manifold pressure gauge that detects a pressure of the manifold; a sample tube pressure gauge that detects an internal pressure of the sample tube; and a measurement controller that calculates the adsorption isotherm based on a change in the internal pressure of the sample tube, wherein the sample is a film formed body or a formed body, and a space between an inner wall surface of the sample tube and the sample is filled with a particle-like filler having higher thermal conductivity than the adsorption gas under a measurement pressure.