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Ph tester strips

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pH Test Strips - How to Test Your Health - Step by Step The test strip color changes must be adjusted to the pH scale color chart within about 15 seconds. Look for Seeing what items qualify for 2-day shipping is easy—they're flagged with the program logo. Skip to main content. Testing your pH value is important because it instantly indicates your health level. Place strip against colour chart.
Added: 07.01.2010 View: 528 Duration: 46:18
Category: Toys

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Arashizil 12.01.2010
It is rather valuable piece