ASTM D1042-22 PDF
Name in English:
St ASTM D1042-22
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Ст ASTM D1042-22
Original standard ASTM D1042-22 in PDF full version. Additional info + preview on request
Full title and description
ASTM D1042-22 — Standard Test Method for Linear Dimensional Changes of Plastics Caused by Exposure to Heat and Moisture. This test method specifies procedures for measuring linear dimensional changes (shrinkage or expansion) of plastic specimens after exposure to controlled heat and moisture (water) conditioning intended to simulate accelerated service conditions.
Abstract
ASTM D1042-22 provides a short, practical procedure to determine the linear dimensional change of plastic materials when exposed to specified combinations of elevated temperature and moisture. The method defines specimen preparation, conditioning cycles (oven and/or water immersion), measurement techniques, units and reporting conventions, and typical uses for quality control and comparative material evaluation.
General information
- Status: Active
- Publication date: May 1, 2022
- Publisher: ASTM International
- ICS / categories: 83.080.01 (Plastics in general)
- Edition / version: D1042-22
- Number of pages: 4
Scope
This standard is intended to provide a means for measuring linear dimensional changes (shrinkage or expansion) of plastic specimens developed under defined oven and water conditionings. It specifies test specimen preparation, conditioning regimens, measurement points and reporting of dimensional change in SI units (with inch-pound conversions allowed for information). The procedure is designed for laboratory evaluation and comparative testing rather than to emulate every possible field exposure.
Key topics and requirements
- Definition of specimen geometry and preparation for dimensional measurement.
- Controlled conditioning procedures: elevated temperature (oven) exposure and water immersion sequences to simulate moisture uptake.
- Measurement methods for linear change (initial and final gauge lengths) and calculation of percent dimensional change.
- Reporting requirements: units (SI preferred), test conditions, specimen orientation, number of replicates and averaged results.
- Notes on significance, limitations and safety considerations for laboratory conditioning and measurement.
Typical use and users
Used by materials laboratories, quality-control technicians, R&D engineers, plastics converters and raw-material suppliers to evaluate and compare dimensional stability of polymers and plastic products when exposed to heat and moisture. Typical applications include material selection, batch verification, comparative ranking of formulations and investigation of dimensional behavior in accelerated service testing.
Related standards
Standards commonly referenced alongside ASTM D1042-22 include ISO 2796 (similar subject matter), ASTM D618 (conditioning of plastics for testing), ASTM D792 (density of plastics), and other ASTM test methods for mechanical and environmental characterization of plastics (for example ASTM D638 for tensile properties). Users should consult relevant product- or industry-specific standards for complementary procedures and acceptance criteria.
Keywords
linear dimensional change, shrinkage, expansion, plastics, heat conditioning, moisture conditioning, accelerated service, specimen measurement, dimensional stability
FAQ
Q: What is this standard?
A: ASTM D1042-22 is a test method that specifies how to measure linear dimensional changes in plastics after exposure to defined heat and moisture conditioning.
Q: What does it cover?
A: It covers specimen preparation, conditioning cycles (oven and water), measurement procedures for linear change, calculation and reporting of results in SI units (with inch‑pound conversions allowed for information).
Q: Who typically uses it?
A: Materials labs, QC personnel, R&D engineers, converters and suppliers in the plastics industry use it for material comparison, specification compliance checks and investigation of dimensional stability under accelerated heat/moisture exposure.
Q: Is it current or superseded?
A: It is current as of the 2022 edition (D1042-22). It supersedes earlier editions of ASTM D1042.
Q: Is it part of a series?
A: It is a single test method within the ASTM plastics test suite and is often used alongside other plastics test standards (conditioning and mechanical/environmental tests) rather than being part of a numbered series.
Q: What are the key keywords?
A: Linear dimensional change, shrinkage, expansion, plastics, heat, moisture, accelerated service, dimensional stability.