PDFWAC 296-36-055
General operating requirements—Temperature in working chamber.
Every effort shall be made by the best available means to prevent the wet bulb temperature exceeding 80 degrees F. A wet bulb thermometer, in good working order, shall be provided in every working chamber.
[Rules (Part III F), filed 12/28/62; § 20, Rule 2006, filed 3/23/60.]