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7660-Centrifuge Tubes, Conical, Penny Head Stopper, Graduated
- Graduated
- The 5 and 15ml size are graduated upward from the tip in 0.1ml divisions.
- The 50ml size is graduated upward from tip to 10ml in 0.5ml divisions and from 10 to 50 in 1ml divisions.
- The Penny Head Stopper is solid.
- Graduated
- The 5 and 15ml size are graduated upward from the tip in 0.1ml divisions.
- The 50ml size is graduated upward from tip to 10ml in 0.5ml divisions and from 10 to 50 in 1ml divisions.
- The Penny Head Stopper is solid.
| PART No. | Capacity (ml) | Stopper No. | Approx. . O.D. x Length (mm) Exclusive of Stopper | PACK Qty. |
| 7660-5.0 | 5.0 | 9 | 13 x 120 | 50 |
| 7660-15.0 | 15.0 | 13 | 17 x 139 | 50 |
| 7660-50.0 | 50.0 | 16 | 28 x 151 | 50 |
Conical centrifuge tubes with penny head stoppers and graduations are used in various ASTM tests to measure the purity and quality of oils and other fluids. Key uses include:
- ASTM D91: Precipitation number in lubricating oils.
- ASTM D96: Water and sediment in crude oil.
- ASTM D893: Insolubles in used lubricating oils.
- ASTM D1796: Water and sediment in fuel oils.
- ASTM D4007: Water and sediment in crude oil (field test).
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