ASTM D618-21 is a standard practice that provides guidelines for conditioning and testing plastics. The standard outlines the procedures for conditioning plastics prior to testing, as well as the testing conditions to be used for various types of plastics.
Verify that your humidity chamber can hold 23°C ± 2°C and 50% RH ± 5% (or ±3% per the new tolerances). Calibrate your sensors annually. astm d618-21 pdf
Rachel immediately called a meeting with her team to discuss the issue. They pored over the production records and reviewed the testing procedures, but everything seemed to be in order. The team then decided to investigate further by reviewing the ASTM D618-21 standard, which covered the "Standard Practice for Conditioning Plastics for Testing." ASTM D618-21 is a standard practice that provides
: Eliminating the influence of a material's previous exposure history (e.g., storage in a hot warehouse) to ensure consistent data. Calibrate your sensors annually
"In the world of molecular chains, it’s the law," Sarah replied. "ASTM D618-21 is the difference between a product that saves a life in the field and one that disintegrates in a backpack. If you don't control the environment before the test, the test is lying to you."