Technical Data

Trace Impurities

Element (PPM)	GE Type 214 Electric Fused Tubing & Rod (PPM) Max.	GE Type 124 Electric Fused Ingot (PPM) Max.	Heraeus Type TSC-3 Flame Fused Ingot (PPM)	Corning HPFS 7980 Fused Silica Flame Fused Ingot (PPB)
Ag	-	-	-	<2
Al	19.0	19.0	15	<25
As	<0.002	<0.002	-	<15
Au	-	-	-	<1
B	<0.2	<0.2	-	<10
Ba	-	-	-	<1
Be	-	-	-	<0.5
Bi	-	-	-	<1
Ca	2.0	2.0	0.4	<15
Cd	-	-	-	<0.3
Co	-	-	-	<0.5
Cr	-	-	<0.01	<1
Cu	0.1	0.1	<0.01	<2
Fe	0.8	0.8	0.05	<20
Ga	-	-	-	<0.5
K	3.0	3.0	0.2	<5
Li	2.0	2.0	0.2	<7.2
Mg	1.0	1.0	<0.01	<5
Mn	0.24	0.24	<0.01	<1
Mo	-	-	-	<1
Na	2.5	2.5	0.3	<187
Nd	-	-	-	-
Ni	-	-	-	<5
P	-	-	-	<50
Sb	-	-	-	<0.5
Sr	-	-	-	<0.5
Th	-	-	-	<0.5
Ti	2.0	2.0	1.1	<10
U	-	-	-	<1
V	-	-	-	<1
Y	-	-	-	-
Zn	-	-	-	<5
Zr	3.0	3.5	0.8	<5
OH	Typical <5	Typical <5	170	<1000 PPM