CLEAN AND LABEL SAMPLE TUBES
The equipment images in this topic may differ slightly from your equipment;
however, the instructions are the same unless otherwise noted.
Sample tubes and filler rods must be clean and dry before samples are added and weighed. The
following table indicates which materials are needed for cleaning. The procedures following the
materials list are recommended.
Supplied by Micromeritics
Supplied by User
n Filler rod
n Funnel
n Sample data worksheet
n Sample tube
n Sample tube brush
n Sample tube rack
n Sample weighing support
n Stopper for sample tube
n Acetone or isopropyl alcohol
n Analytical balance
n Detergent (such as Alconox)
n Drying oven
n Forceps
n Insulated gloves
n Pipe cleaners
n Rubber gloves or clean, lint-free cloth
n Safety glasses
n Ultrasonic cleaning unit
n Waste container
1. Preheat drying oven to 110 ºC.
2. Verify that the ultrasonic cleaning unit is clean.
3. Use 5 grams of Alconox (or other suitable detergent) per 500 mL of warm water and fill the
ultrasonic unit with enough water to cover the sample tubes and filler rods (if used). If too
much detergent is used, it may be difficult to rinse from the sample tubes. Ensure the deter-
gent is dissolved before placing the sample tubes and filler rods into the water.
4. Fill the sample tubes with warm water and place them in the ultrasonic cleaning unit, then
place the filler rods in the unit. Turn on the ultrasonic cleaning unit for approximately 15
minutes.
Clean and Label Sample Tubes
Gemini VII 2390 Installation Instructions and Checklist
239-42870-02 Rev (B) — May 2021
7 - 5
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