METHOD AND APPARATUS FOR MEASURING AMOUNT OF IMPURITIES WITHIN GAS SAMPLE TO ANALYZE

摘要

PURPOSE: A method for measuring amount of impurities within gas sample to be analyzed is provided to relative directly obtain concentration value of impurities within gas sample without a preliminary step compensating an analyzer. CONSTITUTION: A characteristic value representing extinction degree of gas sample at a predetermined pressure, is calculated and the impurities are made to be quantitative based on a predetermined law to changes of the characteristic value. The characteristic value as a function of impurity amount, is composed of amount in linear proportion at a regular pressure. The impurities are to be quantitative based on proportion coefficient value between the amount of impurities and the characteristic value, while the proportion coefficient value is determined as a function of pressure based on a tabular statement representing the changes of the characteristic value.