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Products  > TQC Sheen BS Viscosity Cups (401)

TQC Sheen BS Viscosity Cups (401)

The BS Viscosity Cup range is manufactured from anodised aluminum with integral nozzle. (Note the cup doesn't have a stainless steel insert)

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The BS Viscosity Cups is a range of anodised aluminum viscosity cups with integral nozzle. Suited for measuring paints, lacquers and other fluids.  (Note: the cup doesn’t have a  stainless steel insert).
According to (old type) BS3900: Part A6, 1971. This specification is replaced by BS EN ISO 2431/8S3900 part A6:1996 – see BS EN ISO 2431 series of cups.


Viscosity Cups – BS 3900 part A6 : 1971 Standard
DescriptionBS Standard Recommended viscosity range and flow time  

Orifice Diameter (mm)

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
SH007013 -128Break



13 – 43Break



SH012730 – 37030 – 1203.17
SH016570 – 85070 – 2803.97
SH0201150 – 1680150 -5504.76
SH0230630 -6600630 – 22007.14

The BS Cups have been superseded by BS EN ISO 2431 series of cups.
The cups were originally designed for a flow time range of 30 – 300 seconds (break point*1 method) and 30 – 200 seconds (for fixed volume*2 method).
*1 Break point: The timing is taken at the first break in the continuous flow of the sample.
*2 Fixed volume: For this method the cup is filled as normal, but timing is stopped after a fixed volume (50ml) of sample has passed through the cup orifice.

For optimum performance it is recommend to use the cups within a flow time range of 30 – 100 seconds, (table above refers) using the cups for sample flow above 100 to 300 seconds is not recommended as the linearity is not proportional to higher viscosity products.

Cups can be supplied with Calibration Certificates



Applications: Coating Testing, Viscosity Testing

Materials: Inks and Coatings

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