shall be of the mercury-in-glass, red - reading type, with 25 mm Celsius scale of proper range for the service, accurate to ½ a 2 scale division, enclosed in metal, glass covered case, with magnified mercury columns, stainless steel separable socket connection, straight or angle-mounted as required, and installed in piping systems in such a manner as to be easily read. Provide thermometer walls and extension necks where required to clear insulation Preferred Brand : Please specify if any
shall be of the mercury-in-glass, red - reading type, with 25 mm Celsius scale of proper range for the service, accurate to ½ a 2 scale division, enclosed in metal, glass covered case, with magnified mercury columns, stainless steel separable socket connection, straight or angle-mounted as required, and installed in piping systems in such a manner as to be easily read. Provide thermometer walls and extension necks where required to clear insulation Preferred Brand : Please specify if any
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