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Description
Based on Japanese
method of liquid viscosity measure, this cup is used to test viscosity liquid
flow through
the taper
orifice with interior diameter of 50mm and exterior diameter of 86 mm.
Note: The Iwata cup is based on measuring the flow
of liquid in seconds. A precision stopwatch is necessary.
Technical data sheets
Scientific name
IWATA NK-2 cup
Int. vertical height
(mm) 430±0.1
Int. orifice
(mm)
Φ3.81±0.05
Ext. orifice (mm) Φ6.0±0.5
Centistokes
range 70-370
Efflux time
(sec)
20-105±0.2s
Details of IWATA Cup
Int. diameter
(mm) 50±0.05
Ext. diameter (mm) 86±0.1
Int. orifice length
(mm) 10±0.1
Operating
Temperature (๐C) 0-50±0.2
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