41 Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of modified atmosphere packaging (MAP) solutions; Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of package integrity solutions; Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of permeation testing solutions for permeation of oxygen, carbon dioxide, and water vapor; [ Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of microbial control solutions for packaged perishable goods; ] Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of shelf life optimization solutions for packaged perishable goods; Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of environmental and workplace monitoring solutions for volatile organic compounds, ethylene oxide, styrene, acrylonitrile, butadiene, acetone, benzene, vinyl chloride, propylene oxide, sulfur compounds, mercaptans, carbon disulfide, freon, trichloroethylene, methyl chloride, tetrachloroethene, arsine and phosphine; Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of frozen food and carbonated beverage volatile organic compounds monitoring solutions; Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of oil and gas exploration volatile organic compounds monitoring solutions; Training and education services, namely, classes, seminars, workshops, tutoring and mentoring in the field of grain drying methane and non-methane hydrocarbon monitoring solutions