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John from Davenport, Iowa writes

The directions for the Luster Leaf Rapitest Soil Test Kit 1601 are unclear. What does "illuminate" mean- "shine on" or "shine through"?

It says "allow daylight (not direct sunlight) to illuminate the solution."

Answer:

In the directions for the Luster Leaf Rapitest Soil Test Kit 1601, they are suggesting that you use natural light during the day to compare the test results color with the chart rather than comparing the colors at night using synthetic light.

Answer last updated on: 11/28/2017

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