10ml COD Digestion Screw Round Bottom Pyrex Borosilicate Glass Tube with Cap

Applicable instrument models: DR2700 spectrophotometer, DR890, series of multi-parameter water quality analysis, DR5000, DR6000 ultraviolet-visible spectrophotometer, DR2800, portable spectrophotometer, DR3900 desktop spectrophotometer, DR1010 COD
Cleaning instructions:
The wear of the digestion tube will also affect the measurement results. It is necessary to reduce the wear as much as possible and eliminate the digestion tube with serious wear in time.
When cleaning, do not use test-tube brush to scrub the digestion tube. It is easy to cause scratches and affect the colorimetry.
It is suggested that after the waste liquid is poured into the waste liquid cylinder, the digestion tube should be washed with tap water and cleaned by ultrasonic wave. Residual dirt on the outer wall is wiped with alcohol cotton. After soaking in deionized water for several hours, the cleaned digestion tube is dried overnight in an oven at 60-70℃.