| Not official USP-NF text | ||
| SUPPORT | Siliceous earth for gas chromatography has been flux-calcined by mixing diatomite with Na2CO3 flux and calcining above 900 . The siliceous earth is acid-washed, then water-washed until neutral, but not base-washed. The siliceous earth may be silanized. |
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| S1A | BRAND NAME | MANUFACTURER |
| Chromosorb G-AW-DMCS | Johns Mansville Corp. | |
| Chromosorb G-AW-PMS | Johns Mansville Corp. | |
| Chromosorb G-HP | Johns Mansville Corp. | |
| Chromosorb P-AW-DMCS | Johns Mansville Corp. | |
| Chromosorb W-AW | Varian-Chrompack, Supelco | |
| Chromosorb W-AW-DMCS | Johns Mansville Corp. | |
| Chromosorb W-HMDS | Johns Mansville Corp. | |
| Chromosorb W-HP | Varian-Chrompack, Supelco | |
| SUPELCOPORT | Supelco, Inc. | |
| Supelcon AW DMCS | Supelco, Inc. | |