ASTM G7, titled "Standard Practice for Atmospheric Environmental Exposure Testing of Nonmetallic Materials," is a globally recognized standard developed by ASTM International. It outlines the specific procedures for exposing nonmetallic materials to natural outdoor environments.
Specimens should be exposed outdoors at the selected test site(s) with the following procedures:
Always ensure you buy the latest active version (e.g., ASTM G7/G7M) to comply with current industry regulations.
or explore technical summaries provided by testing leaders like Atlas Material Testing technical comparison astm g7 pdf
Note: Accessing ASTM standards through official channels ensures you are using the most current, authorized version of the document. Related Weathering Standards
Think of ASTM G7 as the and ASTM G154 as a "fast, simulated preview." Often, they are used together. ASTM G154 provides quick initial data, while ASTM G7 confirms this data with real-world performance.
A widely accepted standard angle for general weathering data. or explore technical summaries provided by testing leaders
: Specimens are mounted on top of an enclosed black metal box to simulate the extreme heat trapped inside automotive interiors or dark components. 🧪 Best Practices for Valid Experimental Design
A manufacturer of architectural coatings uses ASTM G7 to compare three formulations. Specimens are mounted on a 45° south-facing rack in Florida (high UV, humidity) and Arizona (high UV, dry heat). Every 3 months, color change (ASTM D2244) and gloss loss (ASTM D523) are measured. Results guide formulation improvements before market launch.
ASTM offers a "Reading Room" for to view the PDF online (no download, but you can print one copy). A widely accepted standard angle for general weathering data
What you are testing (e.g., PVC, automotive paint, textiles).
Yes, ASTM G7 is technically equivalent to the parts of that describe direct exposures of specimens to the environment (excluding exposures behind glass). This equivalence is an official part of the standard's scope.
The official, legally binding document for this testing protocol is protected by copyright laws. If you require the for commercial testing, auditing, or laboratory certification, it must be sourced through authorized channels: