EPA Method 1631 Mercury Calibration Standard from China
> This mercury calibration standard is a solution-based certified reference material with known mercury concentrations at ppb levels, used for validating ultra-trace mercury analysis methods like EPA Method 1631. It is accompanied by a certificate with certified values and uncertainty, qualifying under Chapter Note 2(A). It is not a separate chemically defined element because it is a solution preparation, so it is not excluded by Chapter Note 1(a).
Duty Rate — China → Canada
Import Tips
• > Provide the certificate of analysis to CBSA to confirm its classification as a certified reference material
• Since mercury is a hazardous substance, ensure compliance with Canadian environmental regulations for transport and import
• Keep safety data sheets (SDS) available for customs inspection