The test strip color changes must be matched with the pH scale color chart within about 15 seconds.
Can be used to test the acidity or alkalinity of many everyday substances like moisturized soap, lemon juice, milk, liquid detergent, and so on
Package included:320pcs pH paper test.

• Paper Size:app 45mm x 7mm (L x W)
  
• PH 1-14 color chart in each pack
  
• The test strip color changes must be matched with the pH scale color chart within about 15 seconds
  
• 7 indicates neutral. 8 - 11 indicates alkalinity.12 - 14 indicate a very high level of alkalinity.
  
• Can be used to test the acidity or alkalinity of many everyday substances like moisturized soap, lemon juice, milk, liquid detergent, and so on
  

Paper Size:app 45mm x 7mm (L x W)
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