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PSL Ubbelohde ASTM Viscometer, with UKAS certificate
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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 Ubbelohde ASTM Viscometer is a precision borosilicate glass capillary viscometer, designed to provide accurate and reproducible measurements of kinematic viscosity for transparent Newtonian fluids. This is our best-selling viscometer, trusted by research labs, petroleum testing centers, and chemical industries worldwide.
Each unit is supplied with a UKAS-traceable certificate of calibration under ISO/IEC 17025 standards, ensuring regulatory compliance and international recognition for quality control and research applications.
Key Features & Benefits
- ✅ UKAS Certified (ISO 17025): Supplied with full traceability for kinematic viscosity calibration
- ✅ Standard Compliant: Meets ASTM D446, ISO 3105, IP71 Part 2, BS 188
- ✅ Wide Viscosity Range: Available in 16 sizes covering 0.3 mm²/s to 100,000 mm²/s
- ✅ Efficient Sample Handling: Approximate sample volume 18 mL, nominal length 283 mm
- ✅ Easy to Use: Transparent, reusable, and ideal for routine laboratory testing
- ✅ Ideal for Transparent Fluids: Optimized flow visibility for Newtonian liquids
- ✅ Consistent Flow Timing: Designed for precise repeatability and accurate temperature control
Applications
- Petroleum & lubricant testing
- Kinematic viscosity of transparent oils, fuels, and solvents
- Quality control in process industries
- Research and academic laboratories
- Compliance with global fuel testing standards (ASTM D445, ISO 3104)
Technical Specifications
| Specification | Value |
|---|---|
| Viscometer Type | Ubbelohde, suspended level |
| Certification | UKAS ISO 17025 (Lab No. 0247) |
| Overall Length | 283 mm (nominal) |
| Sample Volume | Approx. 18 mL |
| Material | Borosilicate glass |
| Standards Compliant | ASTM D446, ISO 3105, IP71 Pt.2, BS 188 |
Available Sizes and Constants
| Part No. | Size | Constant (mm²/s²) | Viscosity Range (mm²/s) |
|---|---|---|---|
| 1643/01 | 0 | 0.001 | 0.3 to 1 |
| 1643/02 | 0C | 0.003 | 0.6 to 3 |
| 1643/03 | 0B | 0.005 | 1 to 5 |
| 1643/04 | 1 | 0.01 | 2 to 10 |
| 1643/05 | 1C | 0.03 | 6 to 30 |
| 1643/06 | 1B | 0.05 | 10 to 50 |
| 1643/07 | 2 | 0.1 | 20 to 100 |
| 1643/08 | 2C | 0.3 | 60 to 300 |
| 1643/09 | 2B | 0.5 | 100 to 500 |
| 1643/10 | 3 | 1.0 | 200 to 1,000 |
| 1643/11 | 3C | 3.0 | 600 to 3,000 |
| 1643/12 | 3B | 5.0 | 1,000 to 5,000 |
| 1643/13 | 4 | 10 | 2,000 to 10,000 |
| 1643/14 | 4C | 30 | 6,000 to 30,000 |
| 1643/15 | 4B | 50 | 10,000 to 50,000 |
| 1643/16 | 5 | 100 | 20,000 to 100,000 |
The PSL Ubbelohde ASTM Viscometer with UKAS Certification is the ideal choice for laboratories requiring traceable, accurate, and repeatable viscosity measurements. With wide viscosity coverage, robust build quality, and compliance with international test methods, this viscometer ensures confidence in your results and reliability across routine and critical applications.
- Size: Size: 0, Range: 0.3 to 1 mm2/s Size: 0C, Range: 0.6 to 3 mm2/s Size: 0B, Range: 1 to 5 mm2/s Size: 1, Range: 2 to 10 mm2/s Size: 1C, Range: 6 to 30 mm2/s Size: 1B, Range: 10 to 50 mm2/s Size: 2, Range: 20 to 100 mm2/s Size: 2C, Range: 60 to 300 mm2/s Size: 2B, Range: 100 to 500 mm2/s Size: 3, Range: 300 to 1,000 mm2/s Size: 3C, Range: 600 to 3,000 mm2/s Size: 3B, Range: 1,000 to 5,000 mm2/s Size: 4, Range: 2,000 to 10,000 mm2/s Size: 4C, Range: 6,000 to 30,000 mm2/s Size: 4B, Range: 10,000 to 50,000 mm2/s Size: 5, Range: 20,000 to 100,000 mm2/s