ASTM D4651

ASTM D4651 is the ASTM standard for the Standard Specification for Isobutane Thermophysical Property Tables. It provides a formal reference for the thermophysical data associated with isobutane, helping users work from a consistent technical source. This matters for engineers, technical buyers, and quality teams that rely on dependable property information for calculations, comparisons, and documentation. By using ASTM D4651, organizations can support more consistent product evaluation and specification work.

ASTM D4651 standard overview

This standard focuses on property tables for isobutane and presents them in a specification format intended for technical use. As an ASTM standard, ASTM D4651 is useful where accurate thermophysical data is needed to support engineering decisions, analysis, or reference documentation. The title indicates a tabulated property resource rather than a test method, so its value is primarily in providing standardized data for isobutane-related work. That consistency helps reduce uncertainty when comparing calculations or preparing technical records.

Where is ASTM D4651 used?

ASTM D4651 is commonly used in settings where isobutane property data must be referenced with confidence, such as engineering calculations, equipment documentation, and technical review workflows. It may be consulted by teams working with systems, processes, or products involving isobutane and needing standardized thermophysical values. Because the document is a specification for property tables, it is especially relevant in procurement, design support, and quality-related tasks where a reliable data source is important.

Practical importance of ASTM D4651

The practical value of ASTM D4651 is consistency. A standard specification for isobutane thermophysical property tables helps users align on the same reference data, which supports clearer communication and fewer errors in technical work. It can aid compliance efforts, internal review, and product evaluation by giving stakeholders a common basis for comparison. For organizations handling isobutane-related calculations or documentation, ASTM D4651 helps improve traceability and reduce risk from inconsistent property information.

• Standardized isobutane property tables
• Reference for engineering calculations
• Supports consistent technical documentation
• Useful for quality control and review
• Helps reduce data inconsistency risk