Granularity Grade Crushed Walnut Shells for Pincushions
| Grade | Mesh Size | Particle Size |
| Extra Coarse | 4/6 Mesh | 4.75 – 3.35 mm |
| Coarse | 6/10 Mesh | 3.35 – 2.00 mm |
| Coarse | 8/12 Mesh | 2.36 – 1.70 mm |
| Medium | 12/20 Mesh | 1.70 – 0.85 mm |
| Medium | 14/30 Mesh | 1.40 – 0.56 mm |
| Fine | 18/40 Mesh | 1.00 – 0.42 mm |
| Fine | 20/30 Mesh | 0.85 – 0.56 mm |
| Fine | 20/40 Mesh | 0.85 – 0.42 mm |
| Extra Fine | 35/60 Mesh | 0.50 – 0.25 mm |
| Extra Fine | 40/60 Mesh | 0.42 – 0.25 mm |
| Flour Grade | 40/100 Mesh | 425 – 150 micron |
| Flour Grade | 60/100 Mesh | 250 – 150 micron |
| Flour Grade | 60/200 Mesh | 250 – 75 micron |
| Flour Grade | -100 Mesh | 150 micron and finer |
| Flour Grade | -200 Mesh | 75 micron and finer |
| Flour Grade | -325 Mesh | 35 micron and finer |
Crushed Walnut Shells for Pincushions Physical Properties
| APPEARANCE | Granular |
| COLOR | Light Brown |
| FLASH POINT | 193°C (380°F) |
| CHARRING TEMPERATURE | 243°C (470°F) |
| SPECIFIC GRAVITY | 1.2-1.4 |
| HARDNESS | MOH 2.5-4 |
| PH AT 25°C IN NEUTRAL WATER | 4-6 |
| FREE MOISTURE (80ºC FOR 15 HRS) | 3-9% |
| OIL CONTENT | 0.25% |
| VOLUMETRIC WEIGHT | 850kg/m3 |
| OIL REMOVAL RATE | 65% |
| WARE RATE | ≤1.5% |
| DILATABILITY | 0.50% |
| SOLUBILITY | Insoluble |
| PARTICLE SHAPE | Irregular |
Crushed Walnut Shells for Pincushions Chemical Analysis
| NITROGEN | 0.10% |
| CELLULOSE | 40-60% |
| LIGNIN | 20-30% |
| TOLUENE SOLUBILITY | 0.5-1.0% |
| METHOXYL | 6.50% |
| CHLORINE | 0.10% |
| ASH | 1.50% |
| CUTIN | 1.00% |
| CALCIUM | 0.50% |
| MAGNESIUM | 0.03% |
| COPPER | 1.31% |
| SODIUM | 0.02% |
| FERRUM | 0.02% |
| MANGANESE | 0.09% |
| KALIUM | 0.03% |
| ZINC | 0.05% |
Isaac (verified owner) –
Good service.