ASTM D7637
Standard Test Method for Determination of Glycerin Assay by Titration (Sodium Meta Periodate)
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About This Item
ASTM D7637 is the ASTM standard for determining glycerin assay by titration using sodium meta periodate. It provides a defined test method for measuring glycerin content in a sample, helping laboratories and producers obtain consistent analytical results. By standardizing the titration approach, this technical document supports product evaluation, quality control, and compliance-related testing where accurate glycerin assay is important.
What is ASTM D7637?
This standard describes a test method focused on glycerin assay determination through titration with sodium meta periodate. In practical terms, it gives users a recognized procedure for measuring the amount of glycerin present in a material using a chemical analysis method. ASTM D7637 is useful when a repeatable, documented approach is needed to compare results across laboratories or production batches. It is best understood as a laboratory testing standard rather than a product specification.
Where is ASTM D7637 used?
ASTM D7637 is commonly used in laboratory and quality control settings where glycerin content needs to be measured with a standardized titration method. It is relevant to testing workflows that involve chemical analysis of glycerin-containing materials or formulations. The standard may also support incoming inspection, batch release testing, and product verification when glycerin assay results are part of acceptance criteria. Its value is highest wherever consistent analytical reporting is needed.
Why is ASTM D7637 important?
This standard matters because it helps make glycerin assay testing more consistent, comparable, and defensible. A recognized ASTM method can reduce variation between operators and laboratories, which supports better quality control and more reliable product evaluation. ASTM D7637 also helps procurement and compliance teams reference a clear testing framework when specifying analytical requirements. In practice, that can lower uncertainty and improve confidence in reported glycerin assay results.
- Titration-based glycerin assay method
- Sodium meta periodate chemistry
- Laboratory testing and quality control
- Consistent analytical reporting
- Product verification and compliance support
- Publication Date: 2021-09-09
- Publisher: ASTM
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