A new measurement strategy has been developed for validation studies of Control Guidance Sheets (CGS) in the framework of control banding. It consists of simultaneous stationary measurements at the local exhaust ventilation (LEV) and in the working area accompanied by personal air sampling at the worker during his activities. This strategy has been applied for validation of CGS for filling of organic solvents into jerrycans, drums and intermediate bulk containers. For assessment of the airborne concentration the stationary measurement at the LEV is most suitable, showing the strongest influence of its incorrect use and inadequate configuration. Workplace measurements performed using this strategy show good agreement between predicted exposure bands according to CGS and measured airborne concentrations of the filled solvents when using appropriate LEV. Additionally, the measurements indicate, that miscellaneous configurations of technical protection measures assure workers‘ protection when filling organic solvents into containers. Therefore, several CGSs for the same activity may be established according to the validation study which enables an expanded use of control banding tools.

This article was published in "Gefahrstoffe - Reinhaltung der Luft" 75(2015) Issue 1/2, pp. 17-22 (www.gefahrstoffe.de).