± 10% when temperature is ± 2 °C; ± 5% when temperature is ± 1 °C 20 to 100+ Days
D618 Standard Practice for Conditioning Plastics for Testing astm d61821 pdf
Investigates moisture barrier properties or tropical environmental resilience. Technical Tolerances & Protocol Compliance ± 10% when temperature is ± 2 °C;
, which replaced the older versions like D6182-00(2015). It provides a standardized way for manufacturers to ensure that leather items—like shoes, car seats, or jackets—don't crack or peel during normal use. 🔍 Overview of the Standard Official Name astm d61821 pdf
The baseline environment defined within the ASTM D618-21 PDF serves as the primary benchmark for universal testing: Environmental Parameter Standard Value Tolerances & Notes 23 °C (73.4 °F)