ASTM D1159 is the standard test method for measuring bromine numbers of petroleum distillates and commercial aliphatic olefins by electrometric titration. It provides a defined approach for evaluating unsaturation in these materials, helping users compare results consistently across testing programs. As a technical document, ASTM D1159 supports quality control, product evaluation, and specification work where bromine number data is used to characterize feedstocks or finished products.

What is ASTM D1159?

This ASTM standard describes an electrometric titration method for determining bromine numbers in petroleum distillates and commercial aliphatic olefins. The test is designed to generate repeatable analytical results for materials where bromine number is used as a measure of reactive unsaturation. ASTM D1159 is commonly used as a reference for laboratory testing, helping align procedures, calculations, and reporting practices within a controlled analytical workflow.

Where is ASTM D1159 used?

ASTM D1159 is used in laboratory settings that test petroleum distillates and commercial aliphatic olefins. It is relevant where bromine number is needed to assess material characteristics, support acceptance testing, or monitor product consistency. The method may be used by quality control labs, inspection teams, and technical groups involved in raw material evaluation or process verification. Its standardized format helps keep results comparable across different facilities and testing campaigns.

Why is ASTM D1159 important?

This standard matters because it gives a consistent way to measure a property that can influence material characterization and product decisions. Using ASTM D1159 helps reduce ambiguity in testing, improves comparability between laboratories, and supports documented compliance with internal or customer requirements. For procurement, quality control, and engineering review, the method provides a recognized basis for evaluating bromine number data and managing testing risk.

• Electrometric titration method
• Bromine number determination
• Petroleum distillates and aliphatic olefins
• Laboratory quality control use
• Standardized analytical reporting