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- Standard / ASTM-G-151
ASTM G-151 -Standard Testing Instruments
Standard test method to expose Nonmetallic Materials in Accelerated Test Devices that Use Laboratory artificial Light Sources
To analyze that how well the accelerated test conditions will reproduce property changes and other failure modes linked with end-use environments for the materials when exposed to devices that use laboratory light sources. Moreover, it is mandatory to analyze the impact of variability in both outdoor exposures and accelerated test when interpreting the results from accelerated exposure tests and experiments.
ASTM G151 provides basic guidance and information on the general protocols, expected performance, and data interpretation for accelerated weathering tests using laboratory light sources. Works on all types of devices (xenon arc, carbon arc, and fluorescent UV). Presto Stantest's UV weathering chambers are designed to meet the performance benchmarks defined by this standard.
Significance
ASTM G151 is significant because it acknowledges that no laboratory exposure can fully replicate real outdoor conditions. Therefore, it recommends using a simultaneously exposed control material of known performance to compare relative durability. This approach ensures more reliable and meaningful results for plastics, coatings, and polymeric material qualification programs.
Scope
ASTM G151 applies broadly to nonmetallic materials tested under accelerated laboratory weathering conditions. It governs consistent and reproducible exposure environments across multiple light source technologies. The standard supports industries requiring material durability validation, making it essential for manufacturers and testing laboratories working with UV weathering chambers.