Working Reference Standard Definition. Mainly for laboratory purpose. Standards are the fundamental reference for a system of weights and measures against which all other measuring devices are compared.
A primary standard reference material is an ultra high purity grade compound used in analysis involving assay identification or purity tests. The impurities if any should be identified and controlled for use in assay studies. Historical standards for length volume and mass were defined by many different authorities which resulted in confusion and inaccuracy of measurements.
In metrology a standard is an object system or experiment that bears a defined relationship to a unit of measurement of a physical quantity.
A drug substance of established quality and purity as shown by comparison to the reference standards material and used as reference working substance for routine quality control. Mainly for laboratory purpose. In metrology a standard is an object system or experiment that bears a defined relationship to a unit of measurement of a physical quantity. Historical standards for length volume and mass were defined by many different authorities which resulted in confusion and inaccuracy of measurements.
