ASTM D4332-22 is a standard specification for testing containers, Encasement, or Encasement components. This specification is intended to provide standardized test conditions and procedures for simulating the performance of these materials under different environment conditions, particularly the effect of changes in temperature and relative humidity on the physical properties of Encasement materials such as cellulosic materials. Repeatability and practical significance of subsequent physical performance tests can be ensured by placement and conditioning under specified atmospheric conditions. This standard describes historically accepted standard conditions as well as specific laboratory condition selections. The purpose is to simulate environmental conditions that may be encountered in actual use, rather than to fully replicate field conditions. Those who use this standard should consider appropriate safety and health measures before applying it, and confirm the applicability of the regulations.