4.12.732    INDICATING DEVICES

(1)  Because of explosion and extreme corrosion hazard, no thermometers or other devices containing mercury shall be used where there is slightest probability of introducing mercury into nitrogen fertilizer solutions.

History: Sec. 80-10-503, MCA; IMP, Sec. 80-10-503, MCA; NEW, 1986 MAR p. 1820, Eff. 10/31/86.