How to Measure pH Using an Indicator

Testing Liquid

• 1

  Dip a new --- unused --- pH indicator in the liquid for about 2 seconds.

• 2

  Remove the indicator gently, so that the strip doesn't vibrate or shake too much.

• 3

  Hold it level for a few seconds and compare the pH indicator to the guide on the side of the pH indicator bottle, or the chart provided inside the bottle. Low numbers on the scale indicate higher acidity, and high numbers on the scale indicate higher alkalinity. Neutral conditions register as green on the indicator or as the number seven on the pH scale.

Testing Soil

• 4

  Dig a small hole in the soil with a trowel, in the area where you wish to plant, and remove any debris from the immediate area.

• 5

  Add some bottled water, which is pH neutral, to the hole and gently mix in some soil.

• 6

  Dip a new --- unused --- pH indicator in the liquid for about 2 seconds.

• 7

  Remove the indicator gently, so that the strip doesn't vibrate or shake too much.

• 8

  Hold it level for a few seconds and compare the pH indicator to the guide.