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KINEMATIC VISCOMETER BATH AZA0948
The AZA0948 Kinematic Viscometer Bath from AZALAB is a precision-controlled laboratory bath designed to provide a stable and uniform temperature environment for determining the kinematic viscosity of liquids using calibrated glass capillary viscometers. Accurate viscosity measurement is critical for quality control and specification compliance in bitumen, asphalt, petroleum products, lubricants, and industrial fluids.
Kinematic viscosity, expressed in centistokes (cSt) or mm²/s, is highly sensitive to temperature variations. The AZA0948 addresses this requirement through precise PID-based temperature control, uniform circulation, and high-visibility construction, ensuring repeatable and standards-compliant test results.
Description
Purpose & Function
The AZA0948 maintains a constant and uniform bath temperature during viscosity testing as required by international standards. Glass capillary viscometers containing the test sample are immersed in the bath until thermal equilibrium is achieved. The efflux time of the liquid under gravity is measured and multiplied by the viscometer constant to determine kinematic viscosity.
Standards Compliance
- ASTM D445 – Kinematic viscosity of transparent and opaque liquids
- IS 1206 (Part 3) – Kinematic viscosity of bituminous materials
- ISO 3104
- IP 71
Widely accepted for VG Bitumen grading as per IS 73 and MoRTH specifications.
Key Features
- High-Precision Temperature Control: Microprocessor-based PID controller ensures temperature stability of ±0.1°C or better
- Uniform Temperature Distribution: Motorized stirrer / circulation system eliminates thermal gradients
- Double-Walled Construction: SS inner tank with insulated outer cabinet for thermal efficiency
- High Visibility: Toughened glass windows on two sides for clear observation of viscometers
- Multi-Viscometer Capacity: Supports simultaneous testing of multiple capillary viscometers
- Chemical Resistance: Stainless steel inner tank resists corrosion from oils and bituminous materials
- Laboratory-Grade Build: Designed for continuous use in QC and R&D laboratories
Applications
- Bitumen and asphalt binder testing (VG grading, cut-back bitumen)
- Petroleum products and lubricating oils
- Fuel and hydraulic oil quality control
- Industrial fluid characterization
- Research, academic, and material development laboratories
Technical Specifications
| Parameter | Description |
|---|---|
| Model | AZA0948 |
| Test Method | Kinematic viscosity using glass capillary viscometers |
| Temperature Range | Ambient +5°C to 100°C / 120°C (higher ranges up to 150–200°C optional) |
| Temperature Stability | ±0.1°C or better |
| Controller | PID digital temperature controller |
| Display Resolution | 0.1°C |
| Stirring | Motorized stirrer / circulation system |
| Inner Tank | Stainless Steel (SS 304) |
| Outer Cabinet | Powder-coated GI / mild steel |
| Insulation | Glass wool / PUF insulation |
| Viewing Windows | Toughened glass (two sides) |
| Viscometer Capacity | 2, 4, 6 or 8 viscometers (model dependent) |
| Power Supply | 230 V AC, 50 Hz, Single Phase |
Supplied Accessories
- Universal viscometer holders
- Suction bulb
- Drain valve (model dependent)
Optional Accessories
- Glass capillary viscometers (Cannon-Fenske, Ubbelohde, etc.)
- Calibrated ASTM thermometers
- Digital stopwatch
- Viscosity reference oils
- Cooling coil for below-ambient operation
- High-temperature oil bath configuration
Frequently Asked Questions (FAQ)
Q1: What is the primary use of the AZA0948?
It provides a stable temperature bath for kinematic viscosity testing using glass capillary viscometers.
Q2: Why is precise temperature control essential?
Viscosity varies significantly with temperature. Even small fluctuations can lead to inaccurate results.
Q3: Is it suitable for bitumen viscosity testing?
Yes. It fully supports IS 1206 (Part 3) and ASTM D445, commonly used for VG bitumen testing.
Q4: Are viscometers included?
Viscometers are typically supplied separately, as selection depends on viscosity range.
Q5: Can multiple samples be tested simultaneously?
Yes. The bath is designed to hold multiple viscometers depending on the selected capacity.
Summary of Advantages
- Accurate and stable temperature control for viscosity testing
- High visibility and ease of operation
- Supports multiple international standards
- Suitable for bitumen, petroleum, and industrial fluids
- Robust AZALAB build quality for long-term laboratory use
AZA0948 – Precision Temperature Control for Reliable Kinematic Viscosity Measurement
Additional information
| Model Number |
AZA 0948 |
|---|---|
| Resolution |
$0.1^\\circ\\text{C}$. |
| Inner Tank Material |
Stainless Steel (SS 304 grade). |
| Outer Cabinet Material |
Powder Coated GI (Galvanized Iron) sheet. |
| Insulation |
High-density glass wool or PUF. |
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