ASTM D1894-24 PDF

Full title and description

ASTM D1894-24 — Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting. This test method describes procedures to determine starting (static) and sliding (kinetic) coefficients of friction for plastic films and sheeting when sliding over themselves or other surfaces, using either a moving plane or a moving sled configuration for quality control, material specification, and engineering design.

Abstract

ASTM D1894-24 specifies empirical test procedures to measure static and kinetic coefficients of friction of plastic film and sheeting under defined conditions. The standard covers test arrangements (sled and plane), sample preparation, test speeds, normal loads, optional temperature control of the plane, and reporting conventions (SI units preferred). It highlights limitations such as sensitivity to surface additives (slip agents), sample age, and test reproducibility.

General information

• Status: Active (current edition D1894-24).
• Publication date: 2024 (D1894-24; last updated Dec 16, 2024 as recorded by ASTM).
• Publisher: ASTM International.
• ICS / categories: 83.140.10 (Plastics; related test methods and physical properties).
• Edition / version: D1894-24 (2024 edition).
• Number of pages: 7 pages (concise test method document).

Key bibliographic identifiers: DOI 10.1520/D1894-24; developed by ASTM Subcommittee D20.19.

Scope

This test method covers determination of the coefficients of starting (static) and sliding (kinetic) friction of plastic film and sheeting when sliding over itself or over other substances at specified test conditions. The procedure permits using a stationary sled with a moving plane or a moving sled with a stationary plane; both give equivalent coefficient values for a given sample. SI units are the standard; results are intended to be relevant for engineering design and production control. The standard notes that it is not equivalent to ISO 8295–1995 and that results cannot be directly compared between the two methods.

Key topics and requirements

• Definitions of static (starting) and kinetic (sliding) coefficients of friction for films and sheeting.
• Two acceptable mechanical arrangements: moving plane with stationary sled, or moving sled with stationary plane.
• Specified test conditions: normal load, sled mass, test speed, and environmental/temperature considerations (option to heat/cool plane while sled remains at ambient).
• Instrumentation accuracy requirements (force measurement sensitivity and recorder response) and guidance on controlling rate of motion.
• Sample preparation and conditioning guidance; effects of slip additives, surface bloom, and sample age on reproducibility.
• Reporting requirements and units (SI preferred; parenthetical inch-pound units optional for information).
• Limitations and cautions: sensitivity to surface variability, blocking between sled and platform, and non-equivalence to ISO 8295 methods.

Typical use and users

Used by packaging manufacturers, film and sheet producers, QC and materials laboratories, product designers, converters, and research teams to characterize slip and friction properties of films for applications such as bagging, sealing, winding, coating, and automated handling. It is commonly applied for production control, specification compliance, comparative material selection, and troubleshooting surface additive behavior.

Related standards

Standards and documents often referenced alongside D1894 include ASTM test methods and specifications for plastic films (for example D882 for tensile properties, D1709 for impact, D2578 for wetting tension) and other international methods for friction of films such as ISO 8295 (note: ISO 8295 is not equivalent to ASTM D1894). Users frequently consult material specifications that may modify or supplement D1894 procedures.

Keywords

coefficient of friction, static friction, kinetic friction, plastic film, sheeting, slip, sled, plane, ASTM D1894-24, packaging, test method, SI units, slip agents.

FAQ

Q: What is this standard?

A: ASTM D1894-24 is the 2024 edition of the ASTM test method for determining static and kinetic coefficients of friction of plastic film and sheeting; it provides procedures and reporting requirements for measuring slip and friction under controlled conditions.

Q: What does it cover?

A: It covers procedures to measure starting (static) and sliding (kinetic) friction when a film or sheet slides over itself or another surface, including acceptable apparatus arrangements (sled/plane), test conditions, instrumentation, sample handling, optional temperature-controlled plane testing, and cautions about reproducibility and surface additives.

Q: Who typically uses it?

A: Packaging and film manufacturers, converters, QC labs, materials engineers, and R&D groups use D1894 for production control, material comparison, specification development, and performance evaluation of films and sheeting.

Q: Is it current or superseded?

A: Current — the active edition is D1894-24 (2024). Earlier editions include D1894-14 and D1894-11; the 2024 revision is the latest published edition as recorded by ASTM (last updated Dec 16, 2024).

Q: Is it part of a series?

A: D1894 is part of ASTM's suite of plastics test methods (committee D20) and is referenced by other material specifications and test methods for films and sheeting; it is catalogued within Book of Standards Volume 08.01 and maintained by Subcommittee D20.19.

Q: What are the key keywords?

A: Coefficient of friction, static friction, kinetic friction, slip, plastic film, sheeting, sled test, plane test, packaging, ASTM D1894-24.