These standards are ideal for use as control standards to verify that correct analysis for COD has taken place. Extensive range (10 to 60000 ppm), NIST traceable, 2 years shelf-life. Bottles of 500 ml.

COD standards
Standards COD
COD standards
Standards COD
COD standards
Standards COD
COD standards
Standards COD
COD standards
Standards COD
COD standards
Standards COD
COD standards
Standards COD
COD standards
Standards COD
COD standards
Standards COD
COD standards
Standards COD
COD standards
Standards COD
COD standards
Standards COD
COD standards
Standards COD
COD standards
Standards COD
COD standards
Standards COD