Additional Standards For Monitoring Test Equipment; Monitoring Test Equipment; Storing And Handling Standards - Altana BYK haze-gard dual Betriebsanleitung

6 Calibration
6.4 Additional Standards for

Monitoring Test Equipment

To check that the measurement de-
vice is working correctly, measure-
ments should be performed at regu-
lar intervals with special test stan-
dards. The appropriate test stan-
dards are listed in the Ordering
Guide. The displayed readings
should fall within the specified
values for the standard. If they do
not, check that the standard was
clean and that the device was
correctly calibrated. If cleaning the
standard and recalibration do not
correct the error, please contact
Customer Service. For information
about cleaning the device, see
Chapter 6.7.
6.5 Monitoring Test Equipment
Under normal laboratory conditions
and careful handling, an interval of
one month is recommended for the
monitoring of test equipment. If
measuring conditions necessitate
more frequent monitoring of the
equipment, two sets of haze stan-
dards should be used:
1. Working Standards
Any material that is suitably homo-
genous and stable can be used for
routine testing. The working stan-
dards are based on primary stan-
dards.
22
2. Primary Standards
The primary standards are not in-
tended for daily monitoring but ex-
clusively as reference material for
the checking of working standards.
Primary standards should be used
as little as possible due to the risk of
damage. The manufacturer's ori-
ginal standards must be used to
guarantee accurate calibration.
6.6 Storing and Handling
Standards
6.6 Storing and Handling
The precision of measurements can Standards
be considerably impaired by the use
The precision of measurements can
of damaged or dirty standards.
be considerably impaired by the use
Please ensure that standards are
of damaged or dirty standards.
clean and unscratched. The stan-
Please ensure that standards are
dard surfaces are very sensitive.
clean and unscratched. The stan-
Therefore, you must not touch the
dard surfaces are very sensitive.
standard surface and protect it
Therefore, you must not touch the
against scratching (store in a secure
standard surface and protect it
iplace). For instructions on the
against scratching (store in a secure
cleaning of standards, see Chapter
iplace). For instructions on the
6.7. The standards must not be
cleaning of standards, see Chapter
exposed to direct sunlight or be
6.7. The standards must not be
stored in a dirty or dusty environ-
exposed to direct sunlight or be
ment. Contact with chemicals and
stored in a dirty or dusty environ-
aggressive vapors must also be
ment. Contact with chemicals and
avoided.
aggressive vapors must also be
avoided.