The miniature VOC Chek 575 Methanol Sampler collects methanol vapors in air without the use of a pump. Vapors diffuse into the sampler at a 1.2 ml/min fixed sampling rate. SKC has validated the sampling rate of the VOC Chek 575 Methanol Sampler along with other critical sampling parameters to meet OSHA/ASTM/ANSI requirements.