Table of emissivity of various surfaces for infrared thermometry page . 3. total emissivity of various surfaces material temperature u00b0c *emissivity *when range of values for temperature and emissivity are given, end points correspond and linear interpolation of emissivity is acceptable. mikron instrument company, inc. Full text of the raw materials for the enamel industry and their chemical technology see other formats ... Sep 06, 2019u00a0u00b7 sanicro u00ae 28 is a suitable material for piping and heat exchangers, particularly at concentrations of between 40 and 70% of deaerated acid and over 85%. sanicro u00ae 28 has approximately the same resistance as alloy c in concentrated acid (98% h 2 so 4 ). Mcmaster-carr is the complete source for your plant with over 580,000 products. 98% of products ordered ship from stock and deliver same or next day.