Wear a protective respiratory mask if noxious samples or dispersants are being
handled, particularly in their dry state during sample preparation or measurement.
Do not smoke during measurement procedures, particularly where inflammable
samples or dispersants are used or stored.
Do not eat or drink during measurement procedures, particularly where
poisonous samples or dispersants are used or stored.
Wear protective gloves when handling hazardous materials, or those that cause
skin infections or irritations.
Take care when handling glass (e.g. beakers). Hazardous materials may enter a
wound caused by broken glass.
Use of the Accessory involves the use of a flow cell. Always replace tubing and
“O” rings with items of an equivalent or better specification in order to retain
chemical compatibility, see Appendix B.
Always test a new sample or dispersant for chemical compatibility before use.
Appendix B of this manual provides a list of the material in contact with the
sample and dispersant.
After measuring hazardous samples or dispersants, scrupulously clean the system
(including Dispersion Unit) to remove any contaminants before making another
measurement.
Always label samples for analysis using industry standard labeling, particularly if
they are handled by a number of staff or stored for long periods. Clearly mark any
operator hazard and associated safety precautions that are required for the
handling of dangerous materials. It is important to keep a record of all hazardous
substances used in the instrument for protection of service and maintenance
personnel.
Always adopt responsible procedures for the disposal of waste dispersant and
sample mixtures. Many chemicals are forbidden by law to be disposed of in such a
manner as to allow their entry into the water system. The user is advised to seek
local advice as to the means available for disposal of chemical wastes in the area of
use. Recommendations can be found within the Materials Safety Data Sheets.
The surfaces of the Mastersizer system and Accessory may be permanently
damaged if samples or dispersants are spilt onto them. If spillages should occur
then the system should be disconnected from the power supply before
scrupulously cleaning up the spillage.
CHAPTER 2
QS Small Volume Sample Dispersion Unit
Page 2.4
MAN 0161
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