We provide testing for auxiliary packaging components in accordance with all requirements and revisions to current USP chapters. Revisions to chapter <670> include the introduction of compendial standards for packaging desiccants. Common types of commercial desiccants include bentonite, calcium chloride, calcium oxide, molecular sieves and silica gel. For these materials, specific tests and assays are described in the general chapter.

Other desiccants are subject to testing to ensure suitability for the intended application. The desiccants may be incorporated directly into the wall or cap of packaging containers or bound by a carrier material.

Regarding Pharmacopeial Forum 42(1), it is proposed to cross-reference general chapter Spectrophotometric Identification Tests <197> to add the needed flexibility to the Infrared Spectroscopy section of Pharmaceutical Coil in chapter <670>. Therefore, the ATR technique can be used as an alternative method.

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