Batchpack COD Vials Reagent by Lianhua Technology assesses COD in water samples. As the sole capsule manufacturer in China, Lianhua ensures the highest quality by overseeing the complete production. We take pride in our innovation; exceptional talents in R&D coupled with extensive experience in quantitative water testing with over 100 indicators have enabled us to develop over 20 series of water quality testing instruments. We continuously adapt each series to the evolving needs of our global customers. Versatility in design makes our vials easy to use for virtually any testing situation; this accountability and commitment to quality makes our vials highly sought after worldwide.