P&P makes reliable analytical instruments for food safety and quality testing. Also supplying certiifed cryoscope standards and cryoscope test tubes. Check for extraneous water (Freezing-Point Cryoscopes) in milk, moisture levels in cheese/yogurt (Halogen Infrared Moisture Analyzer)) or see Somatic Cell Counts from individual animals (cow, goat, sheep, buffalor), milking groups or bulk tanks/tankers