Abstract
These test methods cover the testing of hydroxypropyl methylcellulose. The test methods are as follows: moisture; ash; chlorides; alkalinity; iron; heavy metals; methoxyl content; hydroxyproproxyl content; viscosity; pH; solids; and density.
Scope
1.1 These test methods cover the testing of hydroxypropyl methylcellulose.
1.2 The test procedures appear in the following order:
| Sections | |
| Moisture | 4 to 6 |
| Ash (as Sulfate) | 7 to 10 |
| Chlorides (as NaCl) | 11 to 14 |
| Alkalinity (as Na | 15 to 18 |
| Iron | 19 to 24 |
| Heavy Metals | 25 to 29 |
| Methoxyl Content | 30 to 35 |
| Hydroxypropoxyl Content | 36 to 41 |
| Viscosity | 42 to 46 |
| pH | |
| Solids | 48 to 51 |
| Density | 52 to 56 |
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
