ASTM D4307-17 (2021) PDF

Full title and description

ASTM D4307-17(2021) — Standard Practice for Preparation of Liquid Blends for Use as Analytical Standards. This practice gives a laboratory procedure for preparing small volumes of multicomponent liquid blends intended as analytical standards for calibration and verification of chromatographic and other analytical instrumentation. It defines suitability criteria for components, handling cautions (including limits on volatile components such as butane), and recommends SI units and good laboratory safety practices.

Abstract

This standard practice describes stepwise laboratory procedures and limiting conditions for preparing liquid reference blends of known composition. It applies to components that are liquid at ambient conditions or solids that dissolve in liquids, and restricts components by solubility, chemical compatibility, and combined vapor pressure to avoid selective evaporation. The practice also notes a maximum recommended butane content and highlights user responsibility for safety and regulatory compliance.

General information

• Status: Active (reapproved/updated).
• Publication date: Original designation 2017; reapproved/updated October 29, 2021 (designation D4307-17R21).
• Publisher: ASTM International (formerly ASTM — American Society for Testing and Materials).
• ICS / categories: ICS 75.100 (Lubricants, industrial oils and related products); 75.120 (Hydraulic fluids); 95.020 (Military in general) — related classification areas.
• Edition / version: D4307-17(2021) — D4307-17R21 (reapproved 2021), DOI 10.1520/D4307-17R21.
• Number of pages: 3.

Scope

The practice covers a laboratory procedure for preparing small volumes of multicomponent liquid blends to be used as analytical standards. It is applicable to normally liquid components at ambient temperature (and to solids that will dissolve) and allows inclusion of volatile components such as butanes only with precautions. The practice is limited to blends where all components are completely soluble in the final mixture, are non‑reactive with each other and with the container, and where the combined vapor pressure does not permit selective evaporation of components.

Key topics and requirements

• Preparation method for small-volume multicomponent liquid blends intended as analytical standards.
• Component suitability: complete solubility in final blend and chemical non‑reactivity with other components and containers.
• Vapor pressure control: blended components must not exhibit selective evaporation; volatile component limits apply (butane content not to exceed 10%).
• Use of SI units as the standard unit set for values and reporting.
• Safety, health, and environmental considerations are the responsibility of the user; the practice does not cover all safety issues.
• Recommendations for good laboratory technique to ensure accurate, traceable analytical standards for instrument calibration.

Typical use and users

Analytical and quality laboratories in petroleum, fuels, lubricants, and related chemical industries; instrument calibration specialists preparing in‑house reference blends for gas chromatography and other analytical methods; research laboratories developing method calibrants; regulatory and military labs that produce small-volume reference materials for testing and verification.

Related standards

Related sample‑preparation and reference-material practices and petroleum test methods, for example other ASTM practices for preparation of gas and liquid blends and reference materials (standards addressing volumetric blending, ampulization and storage of hydrocarbon materials, and related calibration practices). Users commonly consult adjacent ASTM petroleum standards and general laboratory reference material standards (including ISO/IEC 17025 guidance for laboratory competence) when implementing this practice.

Keywords

liquid blends, analytical standards, calibration, multicomponent blends, reference materials, solubility, vapor pressure, butane limit, laboratory procedure, ASTM D4307

FAQ

Q: What is this standard?

A: ASTM D4307 is a short practice that describes how to prepare small volumes of multicomponent liquid blends to serve as analytical standards for calibration and verification of laboratory instrumentation.

Q: What does it cover?

A: It covers laboratory procedures and limiting conditions for blending components that are liquids at ambient conditions (or solids that dissolve), requirements for complete solubility and non‑reactivity, limits on vapor pressure/volatile components (e.g., butane ≤10%), and the expectation that SI units and proper safety practices are used.

Q: Who typically uses it?

A: Analytical chemists, QC/QA laboratories in fuels, lubricants and petrochemical sectors, instrument calibration specialists, research labs, and any organization preparing small‑volume in‑house reference blends for analytical work.

Q: Is it current or superseded?

A: The practice is active. It carries the designation D4307-17 with a 2021 reapproval/update (D4307-17R21). Users should check with the publisher for the absolute current status before purchase or citation if precise currency is required.

Q: Is it part of a series?

A: D4307 is part of the ASTM family of petroleum and hydrocarbon standards and sits alongside other ASTM practices covering preparation of gas and liquid reference blends and related analytical methods; it is often used in conjunction with other sample‑preparation and reference material standards.

Q: What are the key keywords?

A: Liquid blends, analytical standards, calibration, multicomponent blending, reference material, solubility, vapor pressure, butane limit, laboratory practice.