... eight standard thermocouples, including J, K, T, E, R, S, B, N. Lower table summarizes the ranges and characteristics of ... ~1750SPlatinum (10% rhodium)BlackOrangePlatinum-20~1750* Negative conductor (L) regulated as American National Standard (ANSI) is always red ... .*Negative conductor (L) regulated as International Electro-technical Commission (L) is always white.2.Using Resistance ...