Application Handbook_Uster_Statistics - Uster Technologies

The best practice is to precondition such samples in a dry atmosphere, so that the moistureequilibrium is later approached from the dry side. During conditioning, the samples must be removedfrom any boxes or containers used for transportation, cleared from all packing material, placed in anupright position to expose the entire bobbin or package surface to the conditioned air, and arranged insuch a fashion that ample space is left between the samples to allow conditioned air to circulatefreely. Laboratory conditions should be monitored by appropriate devices that record both short-termfluctuation and long-term drift.Applicable standards for the environmental conditionsSince most measurements on textile products are affected by both the temperature and the relativehumidity, textile testing should be performed under constant standard atmospheric conditions.ISO 139, EN 20 139, Standard atmosphere for conditioning and testing DIN 53 802.USTER ® STATISTICS 11 (36)