Risk of injury to eyes
Chemicals
When changing the chemicals, the smallest particles of chemicals may be
suspended in the air and cause damage to eyes.
• Always wear protective goggles when working with chemicals.
• Please heed the safety data sheets for the chemicals used.
: Reagent tubes installing and removing I
The reagent tubes are first lifted then swung to one side, detached diagonally downwards and
emptied.
NOTICE
The dimensions for filling the glass tubes given in the schematic of the chapter Reagent tubes
filling should be respected in all cases.
When, for example, there is not enough quartz wool in the bottom of the glass tube, it is
possible that dust from magnesium perchlorate can fall through blocking the fitting below
causing corrosion along the gas flow system.
NOTICE
Before the reagent tubes are fitted, both, the O-rings and the inner ends of the tubes are
lubricated with high vacuum silicon grease.
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