The principle of adopting high-temperature combustion microcoulometric(HTCM) method for detecting chlorine content in fire-resistant oil

as well as optimization test of detecting conditions have been presented

the relationship between transformation rate and main affecting factors

namely temperature

gain

sample resistance

flow velocity of carrier gas

flow velocity of oxygen

biasing voltage

and sample intaking quantity etc.

being obtained.Under optimal test condition obtained from optimization test

test on repeatability and recovery rate of HTCM method has been carried out

results show that the HTCM method has many advantages

such as high precision and accuracy

papid anaysis velocity

few interference

low expense for instruments and equipment

little maintenance work etc..