Use Of Accuvac Ampuls; Use Of The Dr/700 Accuvac Vial Adapter - Hach DR/700 Procedures Manual

Volumetric (transfer) pipets are long tubes with a bulb in the middle and
a single ring above the bulb to indicate the volume of liquid to be
delivered when it is filled to the mark. To discharge the sample from a
volumetric pipet, hold the tip of the pipet at a slight angle against the
container wall and drain. Do not attempt to discharge sample or reagent
remaining in the tip of the pipet after draining. Volumetric pipets are
designed to always retain a small reproducible amount of sample in the
tip of the pipet.

Use of AccuVac Ampuls

AccuVac ampuls contain pre-measured reagent in optical-quality glass
ampuls. The sample is collected in a beaker or other open container. The
ampul tip is immersed stem first well below the sample surface and the
tip is broken off (see Figure 7). The break must be far enough below the
surface to prevent air from being drawn in as the level of the sample
lowers. The ampul is inverted several times to dissolve the reagent
powder (capping is unnecessary). Test results are not affected by
undissolved powder. Wipe the ampul with a towel to remove
fingerprints, etc. Insert the ampul into the AccuVac adapter into the
colorimeter sample compartment and read the results directly.
Figure 7 Using AccuVac Ampuls

Use of the DR/700 AccuVac Vial Adapter

For safety and ease of use, the DR/700 AccuVac Vial Adapter is
provided with the instrument for use with Hach Company's AccuVac
Ampul Reagents. Insert the adapter in the cell compartment by aligning
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