Cal. Pub. Res. Code § 19515.5
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 |