General

Do the test strips only develop and change color at the values shown on the color chart?

2020-02-17T10:01:28-07:00March 18th, 2015|Categories: |

No. Theoretically, the color associated with a certain ppm color block will develop when the sample or standard is that exact ppm.  If the sample is between two ppm color blocks, the color developed by the strip will be [...]

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Why do some test strips require certain packaging?

2020-02-14T15:17:10-07:00March 18th, 2015|Categories: , |

We have several different packaging options, including: Clear resealable bags Amber resealable bags (light protection) Foil bags (light and humidity protection) Clear vials White flip-top vials (light and moisture protection) Amber bottles (light protection)   [...]

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Why do you have to wait longer before comparing some test strips to their color chart?

2020-02-14T15:17:18-07:00March 18th, 2015|Categories: , |

Development time for test strips is dependent upon many factors. The kinetics of the color development are manipulated by altering the formula employed on the test pad, along with adjusting the conditions of the test [...]

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How should test strips be stored?

2020-02-14T15:17:53-07:00March 18th, 2015|Categories: , |

Test strips should be stored in closed vials/bags,in a cool, dry place out of direct sunlight. The ideal condition is 25C (77F). A range of 20C (68F) - 30C (86F) is acceptable. Test strips should not [...]

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