Standard Test Method for Kauri-Butanol Value of Hydrocarbon Solvents
Standard Test Method for Kauri-Butanol Value of Hydrocarbon Solvents
SIGNIFICANCE AND USE 4.1 The kauri-butanol value is used as a measure of solvent power of hydrocarbon solvents. High kauri-butanol values indicate relatively strong solvency. SCOPE 1.1 This test method covers the determination of the relative solvent power of hydrocarbon solvents used in paint and lacquer formulations. This test method is suitable for use with solvents having an initial boiling point over 40 °C and a dry point under 300 °C when determined in accordance with the procedures in Note 1. Note 1: Test Method D86 is used to determine the initial boiling point and dry point for mineral spirits and similar petroleum solvents. Test Method D1078 is used for pure compounds and narrow boiling range cuts. 1.2 For purposes of determining conformance of an observed or a calculated value using this test method to relevant specifications, test result(s) shall be rounded off “to the nearest unit” in the last right-hand digit used in expressing the specification limit, in accordance with the rounding-off method of Practice E29. 1.3 For specific hazard information and guidance, consult the supplier's Material Safety Data Sheet. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM D1133-13(2021), "Standard Test Method for Kauri-Butanol Value of Hydrocarbon Solvents," is an internationally recognized test method published by ASTM International. This standard outlines the determination of the kauri-butanol (KB) value, which is a key indicator of the solvent power of hydrocarbon solvents. The KB value specifically measures the relative ability of a hydrocarbon solvent to dissolve kauri resin in butanol, providing essential information for quality control and formulation in industries such as paints, coatings, and lacquers.
Kauri-butanol values play an important role in evaluating and comparing solvent efficacy. A high KB value indicates strong solvency, making the method vital for product development and compliance in applications where solvent strength directly impacts performance.
The kauri-butanol value test is widely used by:
Другие стандарты ASTM
Organizations referencing ASTM D1133 also commonly use these standards:
These related standards help ensure robust evaluation of hydrocarbon solvents and support the consistent definition and application of solvent grades.
Implementing ASTM D1133-13(2021) provides manufacturers, formulators, and technical professionals with a reliable, standardized approach to measuring and specifying hydrocarbon solvent strength, thereby supporting product integrity, regulatory alignment, and international market access.