On Anhydrous Basis Calculation?

The assay on anhydrous basis is a mathematically derived value from an experimental results of assay and water content tests. The results of assay and water content tests are determined, separately, on as-is basis. The industry-accepted formula for assay on anhydrous basis = (assay on as-is basis×100)/(100-%water).

What is the anhydrous basis?

Anhydrous basis implies that there is no water present in the material before analysis is performed. It means that the sample does not have any absorbed water or bound water such as hydrates.

What is the formula to calculate assay?

The industry-accepted formula for assay on anhydrous basis = (assay on as-is basis×100)/(100-%water). Statistically, the two variables involved in accepted formula are assay on as-is basis and water to obtain assay on anhydrous basis.

Marcus Vance

Marcus Vance

Cybersecurity & Digital Privacy Researcher

Marcus Vance is a cybersecurity auditor and technology writer dedicated to educating the public about online safety, data privacy regulations, enterprise security, and emerging cyber threats.