Gardco / DIN 4mm Viscosity Cups

• The Gardco/DIN 4mm viscosity cups conform to the flow characteristics specified by Deutsche Normen DIN 53211.
• Conversion formulas and tables relating efflux time in seconds, to the nearest tenth of a second, to viscosity in centistokes are furnished with each Gardco/DIN viscosity cup.
• Calibration of the Gardco/DIN cups are traceable to the National Institute of Stadards and Technology.
• The Gardco/DIN viscosity cup is machined from solid bar stock aluminum with removable stainless steel orifice.

The Gardco/DIN viscosity cups are in close agreement with the internal dimensions specified in DIN 53211 but with the following improvements: The mass of metal has been reduced to a minimum adjacent to the orifice for smallest possible temperature influence when cup and test material are not at the same temperature. The stainless steel orifice is of the readily removable type permitting replacement without significant loss of accuracy. The design of the cup and orifice eliminate hard to clean recesses. For greatest possible user convenience, the outside dimensions of the cup have been chosen for accommodations by support stands commonly in use with either the series of Gardco Standard Ford viscosity cups or the series of Gardco / ISO viscosity cups.

In addition to physical improvements, the Gardco/DIN cups are furnished with conversion formulas and a copyrighted table which relates the nearest tenth of a second of efflux time to viscosity in centistokes. The table is particularly useful in determining efflux time in seconds when viscosity in centistokes is known. As an additional service, the Gardco/DIN cups may be ordered with a Certificate of Calibration which contains calibration data with the use of oils traceable to the National Institute of Standards and Technology, and a calculated correction factor, if any, that may be used with the cup. Such viscosity cup certification procedures and conditions comply with the specifications of ANSI/NCSL Z540 or ISO/IEC 17025, ISO 9001 as applicable.

The Gardco/DIN viscosity cups are produced to very close mechanical tolerance in elaborate jigs and fixtures. Such production procedures and equipment not only insure that each cup is correctly produced but also that all cups are identical. The body of the cup is machined from solid bar stock aluminum and the orifice from stainless steel.

Certification - Any particular Gardco Standard DIN Cup or Gardco/Mini DIN Dip cup - orifice combination will be certified, as an extra cost service, to within 0.1 seconds and 0.1 degrees Centigrade on a standard oil selected for the combination midrange. Both the viscosity of the oil and the temperature measuring devices are traceable to National Institute of Standards and Technology. This certification complies to the requirements of ANSI/NCSL Z5401 or ISO/IEC 17025, ISO 9001 as applicable. Such certification is voided by the replacement of the cup orifice.

Orifices - Production tolerance on the Gardco Standard DIN cup and the Gardco/Mini DIN Dip cup and the orifice is sufficiently close to permit interchange of orifices between cups. For convenience and for best possible results, however, it is recommended that such interchanges be held to a minimum. The orifice for the cup is machined from stainless steel with the exact conical exterior to match the opening in the base of the cup.

DIN 4mm Standard Cup Only: Exterior cup dimensions are chosen to fit existing support stands for the Standard Ford and ISO viscosity cup series. Gardco/DIN cups are not matched by any other such cups with respect to the above advantages or in highest quality of workmanship or in continuing quality control procedures. The Gardco/DIN viscosity cup was designed by and is manufactured and calibrated by the Paul N. Gardner Company