42 Sanitation consultation and engineering for the food processing, health care, cosmetics manufacturing, medical device manufacturing and drug manufacturing industries, namely, relating preparation and processing and processing methodologies with safety and quality standards; bacteriological research and testing for the detection and identification of microorganisms, infectious agents, antibodies, antigens, receptors and contaminants in food, humans, animals, the environment, namely, water, soil, air sludge, compost, wastewater, medical devices, drugs and pharmaceuticals; chemical analysis of medical devices, drugs and pharmaceuticals, and the nutritional content of food