Engineering Tables/Electronic colour codes

Colour	Significant figures	Multiplier	Tolerance		Temp. Coefficient (ppm/K)
Black	–	×100	–		250	U
Brown	1	×101	±1%	F	100	S
Red	2	×102	±2%	G	50	R
Orange	3	×103	–		15	P
Yellow	4	×104	–		25	Q
Green	5	×105	±0.5%	D	20	Z
Blue	6	×106	±0.25%	C	10	Z
Violet	7	×107	±0.1%	B	5	M
Gray	8	×108	±0.05%	A	1	K
White	9	×109	–		–
Gold	–	×10−1	±5%	J	–
Silver	–	×10−2	±10%	K	–
None	–	–	±20%	M	–
Any temperature coefficient not assigned its own letter shall be marked "Z", and the coefficient found in other documentation. For more information, see EN 60062.