Total iron content, sedimentation, microbial count and aggregation immediately after dilution in 0.9% NaCl as described in the Material and methods section and after storage for 72 h in polypropylene bottles
| 100 mg iron in 100 mL | 200 mg iron in 100 mL | 500 mg iron in 100 mL | ||||||
|---|---|---|---|---|---|---|---|---|
| Variable | Units | Acceptability limit | 0 h | 72 h | 0 h | 72 h | 0 h | 72 h |
| Total iron content | % mg/mL | ±10% | 0.9 | 0.9 | 1.8 | 1.8 | 4.3 | 4.4 |
| Visual control | NA | Free from sediments | Complied | Complied | Complied | Complied | Complied | Complied |
| Total viable aerobic microbes | Counts per mL | <1 | <1 | <1 | <1 | <1 | <1 | <1 |
| Particulate matter ≥10 μm | Counts per container | ≤6000 | 177 | 170 | 221 | 195 | 265 | 215 |
| Particulate matter ≥25 μm | Count per container | ≤600 | 1 | 0 | 0 | 1 | 1 | 0 |
NA, not applicable.