Description
The TQC Sheen BS Viscosity Cups are precision laboratory instruments used to measure the viscosity of paints, coatings, varnishes and similar liquids. Manufactured from high-quality anodized aluminum, these cups are designed to deliver accurate and repeatable flow time results when used with a tripod stand, stopwatch and controlled test conditions.
Designed in accordance with BS 3900: Part A6, 1971. This specification is replaced by BS EN ISO 2431/8S3900 part A6:1996 – see BS EN ISO 2431 series of cups.
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How It Works
- Place the viscosity cup in a dedicated tripod or ring stand, ensuring it is level and stable.
- Block the nozzle opening and carefully fill the cup with the test liquid to the rim.
- Remove excess material to ensure a flat liquid surface.
- Simultaneously unblock the nozzle and start the timer.
- Stop the timer when the continuous flow of liquid breaks at the nozzle.
- Record the flow time in seconds and, if required, convert it to kinematic viscosity (cSt) using a conversion chart or disc.
This laboratory flow cup method provides controlled, repeatable viscosity measurements and is suitable for comparative testing and quality control under standardized conditions.
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Key Features & Benefits
- BS 3900 compliant laboratory viscosity measurement
- Precision-machined built-in nozzle for consistent flow times
- Anodized aluminum construction for durability and easy cleaning
- Stable tripod-based testing method for improved repeatability
- Multiple orifice sizes available to cover a wide viscosity range
- Suitable for paints, coatings, lacquers, inks and liquid materials
- Ideal for quality control, R&D and laboratory environments
| Viscosity Cups – BS 3900 part A6 : 1971 Standard | ||||||
| Description | BS Standard | Recommended viscosity range and flow time |
Orifice Diameter (mm) |
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| BS Standard Viscosity Range based on 30 – 300 seconds flow time. Viscosity units cSt |
Nominal Viscosity based on 30 – 100 seconds flow time. Viscosity units Cst |
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| CSTSH0070 | 13 -128 | Break
point method |
13 – 43 | Break
point method |
2.38 | |
| CSTSH0127 | 30 – 370 | 30 – 120 | 3.17 | |||
| CSTSH0165 | 70 – 850 | 70 – 280 | 3.97 | |||
| CSTSH0201 | 150 – 1680 | 150 -550 | 4.76 | |||
| CSTSH0230 | 630 -6600 | 630 – 2200 | 7.14 | |||
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Accessories
CSTCL0030 | Calibration Certificate (available on request)
CSTVF2061 | Tripod Stand for Viscosity Cups
CSTVF2062 | Ring Stand for Viscosity Cups
CSTVF2067 | Temperature Control Jacket for DIN & ASTM
CSTVF2068 | Temperature Control Jacket for ISO & AFNOR
CSTDI0076 | Stopwatch
CSTVF2053 | Viscosity Conversion Disc
CSTTE0027 | Precision Thermometer
CSTF2063 | Glass Plate GP20
CSTVF2061 | Tripod Stand for Viscosity Cups
CSTVF2062 | Ring Stand for Viscosity Cups
CSTVF2067 | Temperature Control Jacket for DIN & ASTM
CSTVF2068 | Temperature Control Jacket for ISO & AFNOR
CSTDI0076 | Stopwatch
CSTVF2053 | Viscosity Conversion Disc
CSTTE0027 | Precision Thermometer
CSTF2063 | Glass Plate GP20
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Scope of Supply
BS Viscosity Cup
Protective Case
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Manufacturing and Standards
The TQC Sheen BS Viscosity Cups are manufactured in the Netherlands by TQC Sheen, part of Industrial Physics, a leading provider of coating test equipment. Each cup is produced under strict quality control and engraved with a unique serial number, according to BS3900
