Parr Instrument Company is an ISO 9001 certified company. Founded in 1899, we recently celebrated our 103rd anniversary, manufacturing high pressure/high temperature laboratory reactors. Reactors are used in the chemical, petrochemical, pharmaceutical, catalyst and organic synthesis research laboratories. Our product line includes oxygen bomb calorimeters. Calorimeters are used to measure the heating value of solid and liquid fuels and Sample Preparation Equipment for trace metal analysis at elevated temperature and pressure. All products are available through our world wide distribution network.