ASTM E542-22 PDF

Full title and description

ASTM E542-22 — Standard Practice for Gravimetric Calibration of Laboratory Volumetric Instruments. This practice specifies gravimetric procedures for calibrating laboratory volumetric instruments (glassware, plasticware and metallic volumetric standards) by determining the mass of pure water contained or delivered and converting that mass to volume at a specified reference temperature (normally 20 °C).

Abstract

Provides a standardized gravimetric method for determining the true volume of laboratory volumetric apparatus across a broad capacity range (typically 0.1 cm³ to 10 000 cm³), including guidance on temperature corrections, allowable alternative gravimetric methods (when demonstrated equivalent), and material considerations for glass, plastic and stable metals. The method excludes calibration using mercury and does not provide evaporation corrections for very small volumes.

General information

• Status: Active.
• Publication date: Edition approved January 1, 2022; published / last updated February 2, 2022.
• Publisher: ASTM International.
• ICS / categories: 17.060 — Measurement of volume, mass, density, viscosity.
• Edition / version: E542-22.
• Number of pages: 14.

Scope

This practice covers procedures for gravimetric calibration of laboratory volumetric instruments commonly used in chemical, analytical, clinical and calibration laboratories. It applies to volumetric instruments with typical capacities from 0.1 cm³ up to 10 000 cm³ (and may be used beyond where practical), and it is based on determining the mass of pure water contained in or delivered by the instrument and converting to volume at a reference temperature (normally 20 °C). The practice excludes mercury-based calibrations and does not provide evaporation corrections for volumes below about 0.1 cm³. Alternative gravimetric methodologies are permitted when demonstrated to produce equivalent results.

Key topics and requirements

• Gravimetric determination of contained or delivered water mass and conversion to volume at a reference temperature (normally 20 °C).
• Applicable instrument types: burettes (to deliver), graduated cylinders, volumetric flasks, measuring and dilution pipettes, transfer/capacity pipettes, specific gravity flasks and metallic volumetric standards.
• Capacity range guidance: typical use for 0.1 cm³ to 10 000 cm³; microglassware (<0.1 cm³) not recommended without evaporation corrections.
• Temperature correction equations and option to use alternative reference temperatures with appropriate equations.
• Material applicability: glass, plastic, various stable metals, or other stable materials provided volumetric thermal expansion coefficients are available.
• Exclusions and safety note: calibration using mercury is excluded; users are responsible for safety and environmental practices.

Typical use and users

Used by calibration laboratories, analytical and clinical laboratories, instrument manufacturers, quality assurance/metrology personnel, and legal metrology authorities for establishing or verifying the delivered or contained volume of laboratory volumetric equipment. It is commonly applied when traceable gravimetric calibration is required for routine calibration, acceptance testing, or to support Class A/B grading under related specifications.

Related standards

Commonly used alongside or referenced with: ASTM E694 (Specification for Laboratory Glass Volumetric Apparatus) for construction and class requirements, and international standards such as ISO 4787 (Volumetric instruments — methods for testing of capacity and for use). For piston-operated apparatus (pipettes, dispensers) ISO 8655 is frequently relevant for complementary calibration and routine testing guidance.

Keywords

gravimetric calibration, volumetric instruments, laboratory glassware, pipettes, burettes, volumetric flasks, calibration, measurement uncertainty, temperature correction, ASTM E542.

FAQ

Q: What is this standard?

A: ASTM E542-22 is a practice that defines gravimetric procedures to calibrate laboratory volumetric instruments by measuring the mass of pure water contained or delivered and converting that mass to volume at a reference temperature (normally 20 °C).

Q: What does it cover?

A: It covers calibration procedures for a wide range of volumetric apparatus (burettes, pipettes, volumetric flasks, cylinders, specific gravity flasks and metallic volumetric standards) across typical capacities from about 0.1 cm³ to 10 000 cm³, temperature corrections, and the conditions under which alternative gravimetric methods may be used. Mercury calibration and evaporation corrections for microvolumes are excluded.

Q: Who typically uses it?

A: Calibration and metrology labs, analytical/clinical laboratories, manufacturers of volumetric apparatus, QA/metrology personnel, and agencies performing conformity or legal metrology checks.

Q: Is it current or superseded?

A: The E542-22 edition is the current active edition (designated E542-22). The edition was approved January 1, 2022 and is shown as last updated/published February 2, 2022. Users should confirm any later revisions directly with ASTM International for the absolute latest status.

Q: Is it part of a series?

A: E542 is part of a family of ASTM documents addressing laboratory apparatus and calibration under Committee E41 (Subcommittee E41.01). It is often used together with related specifications and practices such as ASTM E694 for glass volumetric apparatus and other international standards for volumetric testing.

Q: What are the key keywords?

A: Gravimetric calibration, volumetric instruments, laboratory glassware, volumetric flasks, pipettes, burettes, calibration, measurement uncertainty, temperature correction.