This specification defines the standard temperature and humidity for conditioning and testing of materials at nominally ambient conditions. Materials for conditioning and testing include material containing paper and plastic material. The instruments and techniques used to measure these standard conditions of temperature and humidity must be validated.

This specification defines the standard temperature and humidity for conditioning and testing of materials at nominally ambient conditions. Materials for conditioning and testing include material containing paper and plastic material. The instruments and techniques used to measure these standard conditions of temperature and humidity must be validated.