CAN/CGSB-148.1 No. 100-95

1. Purpose and Scope 1.1 This method describes a procedure for conditioning most types of geosynthetics to a temperature and to a moisture equilibrium with a standard atmosphere. This method is not recommended for geosynthetic clay liners. 1.2 The standard atmosphere is defined as air maintained at a temperature of 23 ± 2°C and a relative humidity of 60 ± 10%. 1.3 Tests in which differences in the moisture content of the specimen will influence the results are carried out on materials in moisture equilibrium with the standard atmosphere (Note 1). 1.4 The testing and evaluation of a product against this method may require the use of materials and/or equipment that could be hazardous. This document does not purport to address all the safety aspects associated with its use. Anyone using this method has the responsibility to consult the appropriate authorities and to establish appropriate health and safety practices in conjunction with any existing applicable regulatory requirements prior to its use. Note 1: When standard atmospheric conditions are not available, tests may be carried out under prevailing atmospheric conditions, but it must be recognized that the results observed may not correspond with the results that would be obtained in the standard atmosphere. In cases of uncertainty or dispute, all specimens shall be brought to moisture equilibrium with the standard atmosphere and tested in this condition.