Active standard | Published: 01/01/2026

API MPMS CHAPTER 9.3

Standard Test Method for Density, Relative Density, and API Gravity of Crude Petroleum and Liquid Petroleum Products by Thermohydrometer Method, Sixth Edition

Available languages: English

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Detail information

Designation: API MPMS CHAPTER 9.3

Publication date: 01/01/2026

Pages: 26

Country: American technical standard

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Anotation

This document covers the determination, using a glass thermohydrometer and/or a separate (alternative temperature measuring device in conjunction with a series of calculations, of the density, relative density, or API gravity of crude petroleum, petroleum products, or mixtures of petroleum and nonpetroleum products normally handled as liquids and having Reid vapor pressures (ASTM D323) of 101.325 kPa (14.696 psia) or less. Values are determined at existing temperatures and corrected to 15 °C (or 60 °F) by means of a series of calculations and international standard tables. See more

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