The new EZ Viscosity Cup Series is a logical and necessary outgrowth of the standardization studies on the Zahn Signature and similar cups for the promotion of this most
popular type of viscosity measuring instrument as a national and international standard. Not only has this cup been improved with respect to earlier produced cups and designed
to comply to the requirements of ASTM D 4212 but, in addition, each EZ Cup is furnished with a table which permits conversion between efflux time in seconds to the nearest
tenth of a second to viscosity in centistokes. This table is particularly useful in determining efflux time in seconds when viscosity in centistokes is known.
For those users who require documented certification
of their measuring equipment, the EZ cups may be ordered, at an additional
charge, with a CERTIFICATE of CALIBRATION . This document contains not only information
on actual cup calibration with standard oils traceable to the National Institute
of Standards and Technology but in addition, this certification also complies
to conditions and procedures under the requirements of ANSI/NCSL Z54O-1 or MIL-STD-45662A
as applicable.
The EZ cups are produced to very close mechanical
tolerance in elaborate jigs and fixtures. Such equipment not only insures that
each cup is correctly produced but also that all cups are identical. All parts
of the cup are of stainless steel except for the name plate. The following table
provides operating range specifications, cup midrange sensitivity and recommended
calibrating oils. Following this table are graphs and mathematical formulas that
relate efflux time in seconds to centistoke viscosity.
Specifications
Cup Range |
Seconds Range |
Centistoke Sensitivity |
Midrange Oil Number¹ |
Calibration Number² |
|
1 |
40 to 60 |
10 to 36 |
1.3 |
G-10/19 |
| 2 |
20 to 60 |
19 to 156 |
3.3 |
G-60/117 |
| 3 |
12 to 60 |
64 to 596 |
10.5 |
G-200/458 |
| 4 |
10 to 60 |
79 to 784 |
13.9 |
G-200/458 |
| 5 | 10
to 60 | 161
to 1401 | 24.2
| G-360/878 |
¹Stated
as centistokes per second of efflux time.
²Centistoke
values are nominal - actual values printed on labels
Available Items
| Item Number |
Item |
| VI-EZ1 |
No. 1 EZ Dip Viscosity Cup with Conversion Table |
| VI-EZ2 |
No. 2 EZ Dip Viscosity Cup with Conversion Table |
| VI-EZ3 |
No. 3EZ Dip Viscosity Cup with Conversion Table |
| VI-EZ4 |
No. 4EZ Dip Viscosity Cup with Conversion Table |
| VI-EZ5 |
No. 5EZ Dip Viscosity Cup with Conversion Table |
| VI-3803 |
G-10 Certified Viscosity Standard - Pint |
| VI-3815 |
G-60 Certified Viscosity Standard - Pint |
| VI-3821 |
G-200 Certified Viscosity Standard - Pint |
| VI-3825 |
G-350 Certified Viscosity Standard - Pint |
|
Certificate of Calibration available at additional charge for all cups. |
EZ
TM is a Registered Trade Mark of the Paul N. Gardner Company, Inc