NEW METHOD CALIBRATION FOR CALIBRATION OF A BODY BOX

摘要

A rational method for the calibration or validation of Body Boxes (BB), which are used for garment cleanlinessrnmeasurement in accordance to IEST-RP-CC003.3, is presented here. Without such calibration or validation the Body Boxesrnmay be space biased and may not even be valid for comparative evaluation of garments. The method presented here involvesrnpoint source aerosol generation within a tube, dilution and comparison of calculated dilution concentrations, based on tubernconcentration measurements, to actual measured BB sampler values. The ratio of these two values then results in the BBrncalibration factor for that point or zone within the BB. By repeating the process an average calibration value and variation orrnrange is determined. Results of two such validations of actual BBs are presented in the paper.