Section 19515.5.

CA Pub Res Code § 19515.5 (2019) (N/A)
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Chemical Composition

Tolerance

(+ or -

Oxides

Percentage Weight

Percentage Range)

Silicon Dioxide

66-75

1.00

Aluminum Oxide

0-7

0.50

Calcium Oxide

5-15

0.50

Magnesium Oxide

0-5

0.50

Sodium Oxide

8-18

0.50

Potassium Oxide

0-4

0.50

Iron Oxide

less than 0.5

0.05

Chromium Oxide

less than 0.1

0.02

Sulfur Trioxide

less than 0.2

0.02

All other oxides

less than 0.1

0.02

Organic Carbon

less than 0.1

0.02

Moisture Content

less than 0.5

0.05

(No caking with free-flowing fiberglass)

Loss on Ignition

less than 1.0

0.10

(Added by Stats. 1991, Ch. 706, Sec. 1.)