Storage And Transportation; Recycling Und Disposal - Xylem SI Analytics ViscoPump II Manual De Instrucciones

Maintenance and care of the device and the viscometers ViscoPump II
Within the quality assurance system in accordance with DIN EN ISO 9001, traceability of the
measuring equipment to national measuring standards is demanded. This traceability can be
achieved by inspecting the comparative viscometers (reference measuring standards) at regular
intervals at the PTB. The time intervals are defined according to the specifications made in the quality
assurance system of the user.
b) Calibration of the capillary viscometer with normal oils of the PTB
During this calibration, a normal oil from the PTB with known viscosity is used as a reference
measuring standard. The measurement is performed by means of flow-through measurement of the
PTB normal oil in the viscometer to be inspected in a temperature bath, the temperature of which
must correspond precisely to the test temperature of the PTB. In this case, it is extremely important
to make sure that the temperature is absolutely correct. In case of temperature variation, this will
always result in a constant for the viscometer that deviates from the constant applied. A temperature
variation of 0.01 K, for instance, will result in a measuring error of up to 0.01 %. The calibration of the
deviating temperature into the viscometer constant is not permitted.
c) Inspection by SI Analytics with quality certificate in accordance with DIN 55 350-18, 4.2.2
The inspection at SI Analytics GmbH is carried out by means of comparative measurements using
viscometers as reference measuring standards that were tested at the PTB (corresponds to Item 1).
Note
General Information on the stability of viscometer constants
Each inspection (even with a certificate) can guarantee the technical measuring direction only for
a limited period of time. The constants of viscometers made of the borosilicate glass DURAN®,
however, can remain unchanged for long periods of time if the viscometers are kept away from
altered influences. Especially extreme changes can be expected, for instance, during the use of
liquids that attack glass, in particular hot caustic soda hydrated (NaOH) orduring glass-blowing
repairs (even for apparently insignificant repairs).
Liquids whose components adhere to the glass wall also cause errors. In such cases, regular cleaning
is required whereby the corrosive action cleaning agent on the glass must be eliminated.
For this reason, we recommend that the user should write up a special processing instructions for
all important measurements and include them in his quality assurance manual in accordance with
DIN EN ISO 9001. In all cases the user is responsible for the correctness of his measuring and testing
equipment and is not released from his responsibility for quality (cp. DIN 55 350, Part 18).

4.6 Storage and transportation

If the AVS® 370 Viscosity Measuring Unit has to be stored over some time, or to be dislocated, using
the original packing will be the best protection of the device. However, in many cases this packing
will not be available any more, so that one will have to compose an equivalent packaging system.
Sealing the device in a foil is recommended.
If viscometers are to be stored temporarily, or transported, all liquids contained in the system,
especially aggressive solutions, have to be drained.
If the viscosimeters are to be stored intermediately or transported again, the fluids contained in the
system, particularly aggressive solutions, must be removed.

4.7 Recycling und disposal

The present viscosity measuring unit and its packing material were mainly made from materials which
can be disposed of and recycled in an environmentally friendly manner.
Should you have any questions regarding disposal, please contact SI Analytics GmbH.
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