Work Item
ASTM WK77198

New Guide for Use of Weathering Reference Materials for Outdoor and Laboratory Exposure Tests

1. Scope

The promotion of knowledge, stimulation of research, and the development of standards related to the durability and performance of organic and inorganic nonmetallic materials, components and combined assemblies that are subjected to various environments.
These objectives will be implemented by the development and coordination of standards relating to nomenclature, standard conditions, methods and instrumentation associated with the aging, weathering biodeterioration, exposure to specific environments and accelerated or service testing of such materials, components and combined assemblies with other materials.
The Committee shall establish liaison with other ASTM Technical Committees with related interests. Where appropriate, the Committee will also assure that its standards are harmonized with related international standards.


weathering reference materials; outdoor exposure test; laboratory exposure tests; repeatability; reproducibility; uniformity; blue wool; polystyrene chip;


The scope of ASTM G156 was written to select and characterize weathering reference materials for use with exposure tests, but it does not provide any detailed information on how to then actually use these materials to determine performance of laboratory exposure testing apparatus or monitor consistency of outdoor tests. This standard will provide that information.

The title and scope are in draft form and are under development within this ASTM Committee.


Developed by Subcommittee: G03.01

Committee: G03

Staff Manager: Jennifer Tursi

Work Item Status

Date Initiated: 06-04-2021

Technical Contact: Matthew McGreer

Item: 000