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PSL U-Tube Reverse Flow Viscometer with UKAS Certificate of Calibration
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Specifications:
| Application | Viscosity |
| Material | Borosilicate glass |
| Storage Temperature | Ambient |
| Product Type | Viscometer |
| Product Brand | PSL |
| Product Grade | Analytical grade |
The PSL U-Tube Reverse Flow Viscometer is a precision instrument designed to measure the kinematic viscosity of opaque liquids, which are unsuitable for traditional suspended-level or Ubbelohde viscometers. Its reverse flow mechanism ensures accurate and consistent readings even with non-transparent or colored fluids.
Manufactured from borosilicate glass, the viscometer is calibrated to international standards and supplied with a UKAS ISO 17025 certificate, providing traceability and compliance for regulated testing environments.
Key Features & Benefits
- ✅ Reverse Flow Design – Ideal for opaque, dark, or turbid liquids
- ✅ UKAS Certified (ISO 17025) – Full traceability with certified constant
- ✅ ASTM & ISO Compliant – Suitable for global laboratory and quality control use
- ✅ Wide Viscosity Range – Available in 11 sizes, covering 0.6 mm²/s to 300,000 mm²/s
- ✅ Efficient Sample Use – Requires only 12–25 mL of sample per test
- ✅ Robust Borosilicate Glass – Chemically resistant and thermally stable
Applications
- Quality control testing in petroleum and lubricant industries
- Viscosity measurement of opaque paints, emulsions, and dispersions
- Dark or colored oils and fluids in chemical and process industries
- Regulatory testing in accordance with ASTM D445 and ISO 3104
- Academic and industrial research involving high-viscosity or opaque samples
Technical Specifications
| Specification | Detail |
|---|---|
| Viscometer Type | U-Tube Reverse Flow |
| Certification | UKAS ISO 17025 (Lab No. 0247) |
| Standards Compliance | ASTM D446, ISO 3105, IP71 Pt.2, BS 188 |
| Test Methods Supported | ASTM D445, ISO 3104, IP71 Pt.1 |
| Nominal Length | 275 mm |
| Sample Volume | Approx. 12–25 mL |
Sample type | Opaque, Bitumen |
| Material | Borosilicate Glass |
Ordering Information
| Part No. | Size | Constant (mm²/s²) | Viscosity Range (mm²/s) |
|---|---|---|---|
| 1637/01 | 1 | 0.003 | 0.6 to 3 |
| 1637/02 | 2 | 0.01 | 2 to 10 |
| 1637/03 | 3 | 0.03 | 6 to 30 |
| 1637/04 | 4 | 0.1 | 20 to 100 |
| 1637/05 | 5 | 0.3 | 60 to 300 |
| 1637/06 | 6 | 1.0 | 200 to 1,000 |
| 1637/07 | 7 | 3.0 | 600 to 3,000 |
| 1637/08 | 8 | 10 | 2,000 to 10,000 |
| 1637/09 | 9 | 30 | 6,000 to 30,000 |
| 1637/10 | 10 | 100 | 20,000 to 100,000 |
| 1637/11 | 11 | 300 | 60,000 to 300,000 |
The PSL U-Tube Reverse Flow Viscometer provides a high-accuracy, certified solution for the kinematic viscosity measurement of opaque and dark liquids. Backed by UKAS certification and meeting all major international test standards, it is ideal for laboratories conducting regulatory, quality control, or R&D testing on a wide range of sample viscosities.
- Sample Type: Opaque Bitumen
- Size: Size: 1, Range: 0.6 to 3 mm2/s Size: 2, Range: 2 to 10 mm2/s Size: 3, Range: 6 to 30 mm2/s Size: 4, Range: 20 to 100 mm2/s Size: 5, Range: 60 to 300 mm2/s Size: 6, Range: 200 to 1000 mm2/s Size: 7, Range: 600 to 3,000 mm2/s Size: 8, Range: 2,000 to 10,000 mm2/s Size: 9, Range: 6,000 to 30,000 mm2/s Size: 10, Range: 20,000 to 100,000 mm2/s Size: 11, Range: 60,000 to 300,000 mm2/s