How to Choose the Right Water Test Range

A kit should cover the expected concentration while still providing useful resolution around the control limit.

Practical guidance

Review historical data, treatment targets and likely upset conditions. A range that is too low may exceed the endpoint, while a range that is too broad may provide poor resolution at the control point.

Recommended workflow

Define the parameter and purpose of testing.
Select a representative sample point.
Confirm the expected concentration range.
Read the kit instructions before starting.
Use clean apparatus and fresh reagents.
Record the result and compare it with previous readings.
Confirm unexpected or critical results when necessary.