-->Colorimetric dish colorimetric reagent

-->Colorimetric tube colorimetric reagent

One set of COD reagent

1. Color comparison dish

Special oxidant (divided into 3 ranges: 5-100mg/L, 100-1200mg/L, 1000-2000mg/L)

Composite catalyst

Masking agent

2. Color comparison tube

Special oxidant (divided into 2 ranges: 5-200mg/L, 200-2000mg/L)

Composite catalyst