Choose your answer before opening the explanation. This is a learning exercise, not a competency assessment.
ICAR-DMR's stated quality limits for casing material are what?
- pH 5 to 6 and high conductivity
- pH 7.0 to 7.5 and 400 to 600 micromho
- Any garden soil
- pH 8.5 and above
See the answer and why
pH 7.0 to 7.5 and 400 to 600 micromho Those are the manual's own figures for casing quality.

