ANSI/ISA Thermocouple Color Codes

Type		Material		Color Code		Overall Jacket
Extension	Grade	Positive Wire	Negative Wire	Positive Wire	Negative Wire	Extension	Grade
JX	J	Iron	Constantan	White	Red	Black	Brown
KX	K	Chromel	Alumel	Yellow	Red	Yellow	Brown
TX	T	Copper	Constantan	Blue	Red	Blue	Brown
EX	E	Chromel	Constantan	Purple	Red	Purple	Brown
RX, SX	---	Copper	Copper Alloy #11	Black	Red	Green	N/A