Juchuang 101C standard COD digester uses glass burr return tube instead of spherical return tube, and replaces tap water cooling method with air cooling technology, which can save water and standardize the instrument, while also improving the safety of the instrument. The instrument's chemical solution preparation, operation and calculation of COD value are in full compliance with GB11914-89. Water samples with COD values â€‹â€‹lower than 50mg / L can be diluted with titrant and oxidant to improve accuracy. COD water samples higher than 1000mg / L , You can complete the determination by proportional dilution of the water sample.
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