Exposure Standard 1 : A quantitative guideline or level set for concentrations of workplace contaminants to which, according to current knowledge, most employees may be exposed without impairment to health or undue discomfort
Martin Ralph (Managing Director, IFAP), Industrial Foundation for Accident Prevention (IFAP): Safer Healthier Workplace, IFAP Glossary of Terms, 4th Ed. Willetton Western Australia 2010. http://www.ifap.asn.au/Documents/courseinfo/IFAP_G lossary_of_Terms.pdf, (IndS - Brit) {633}