NK-2 IWATA viscosity cup, Japan JIS standard, applicable to quick test of viscosity of fluid of Newton or Newton-like in job site. It's widely used for electronic products & plastic-used fluid.
Attention: a high precision of stop watch is required while using.

 
volume:50ml

cup material: copper with nickel plated 
vertical height:43±0.1mm 
inner hole dia: 3.5±0.05mm 
outer hold dia:6.0±0.5mm 
viscosity scope:70~370 cSt 
flow out time:20~100sec
weight:0.35Kg 

Gross weight 
dimension:280×40×40mm(LxWxH)

Operation steps:
Immerse the cup in the fluid & horizontal surface of the fluid is lower the rim of the cup, take out the cup vertically, meantime press the stop watch, the first break in the liquid's flow is measured-need to evaluate, must measure for 3 times continuously & get the average value of the 3 measurements, it's the flow time of the fluid.