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" subheadline="<span class="btArticleDate">11 de agosto de 2026</span><a href="https://www.astefal.com.br/item/ph-10-13-test-strips-bag-of-50-strips/#comments" class="btArticleComments">0</a>" font="" font_weight="" font_size="" color_scheme="" color="" align="" url="https://www.astefal.com.br/item/ph-10-13-test-strips-bag-of-50-strips/" target="_self" html_tag="h2" size="normal" dash="top" el_id="" el_class="" el_style="" supertitle_position="outside" ignore_fe_editor="true"]

This pH 10-13 test strip is a narrow range test for strong bases and highly alkaline materials with increments of .5 pH units.Instructions:Remove one pH 10-13 test strip from the bag, holding one end of the strip between your index finger and thumb. Do not touch the test pad with your fingers.Dip the test strip about 1/2″ into the solution to be tested for 1-2 seconds.Remove and shake off any excess liquid.Compare immediately to the color chart. Do not allow the test strip to dry before reading against the color chart.

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" subheadline="<span class="btArticleDate">11 de agosto de 2026</span><a href="https://www.astefal.com.br/item/ph-4-5-10-3-pad-test-strips-bag-of-50/#comments" class="btArticleComments">0</a>" font="" font_weight="" font_size="" color_scheme="" color="" align="" url="https://www.astefal.com.br/item/ph-4-5-10-3-pad-test-strips-bag-of-50/" target="_self" html_tag="h2" size="normal" dash="top" el_id="" el_class="" el_style="" supertitle_position="outside" ignore_fe_editor="true"]

The pH 4.5-10 test strip is ideal for testing slightly acidic to slightly alkaline solutions. Remove one pH 4.5-10 test strip by holding between your index finger and thumb. Do not touch the test pad with your finger.

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" subheadline="<span class="btArticleDate">11 de agosto de 2026</span><a href="https://www.astefal.com.br/item/ph-7-10-test-strips-bag-of-50-strips/#comments" class="btArticleComments">0</a>" font="" font_weight="" font_size="" color_scheme="" color="" align="" url="https://www.astefal.com.br/item/ph-7-10-test-strips-bag-of-50-strips/" target="_self" html_tag="h2" size="normal" dash="top" el_id="" el_class="" el_style="" supertitle_position="outside" ignore_fe_editor="true"]

Remove one pH 7-10 test strip from the vial, holding one end of the strip between your index finger and thumb. Do not touch the test pad with your fingers. Do not allow the test strip to dry before reading against the color chart.

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