Provide guidance on methodology to assess thermal shock resistance of glass products. This guidance is not intended to supersede or replace or conflict with any current standards, such as C149 (limited to glass bottle cleaning temperatures)and referenced in F2179 glass for candle containers. The proposed scope is to address products subjected to thermal gradients during foreseeable use, and how to test for resistance to fracture from stresses related to thermal gradient during the foreseeable use.
KeywordsGlass, consumer products, thermal gradients, thermal stress, thermal shock,
ASTM C14.07 has received calls each of the past 5 years in regards to how to test products that do not fit into the thermal gradient of C149. There is a need for addressing a procedure for manufacturers to have a common method for assessing thermal shock resistance of products they can foresee being used in conditions that involve thermal gradients, or changes in temperatures across the glass item. This is also in response to reported issues involving different glass products fracturing during normal use.
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
Draft Under Development