The filter-bag fat extractor is a kind of auto determining instruments on the analysis of the crude fat, specially designed on the basis of Soxhlet Extraction Principle and the Ultra-micro filter-bag technique. Under the microcomputer control, the extractor can realize its control of the temperature, pressure, and progress through the whole extraction procedure, and automatically process at most 15 samples per batch.

Chlorine ion titrator adopts potentiometric titration，combine potentiometric determination and titration analysis, during the process of titration draw curves by electrode potential, automatically determine end point of the titration, then caculate the content of chloride ions by the consumption of titrant during the process of titration.This test method is more precise and more reliable than general potentiometry and titration method.

This kind of graphite digestor is adopted with the economic high purity graphite heating method and the anti-oxidation processing. Comparing to that of the aluminum block, the price of the graphite digester is more acceptable to most of the laboratories.