Industrial Cleaning Acid pH Testing Strips

SKU: 33812-0025

$9.59USD or lower Each

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Verify strong acid strength during industrial cleaning and descaling with Indigo® pH 0–2.5 test strips. Fast screening without meters or calibration.

Industrial acid cleaning and descaling processes rely on highly acidic solutions to remove mineral scale, oxides, and process residues from equipment and surfaces. Indigo® Acid pH 0–2.5 test strips provide a fast, reliable way to verify that cleaning acids remain within the effective low-pH range during use. By delivering immediate visual confirmation of strong acidity, these strips help operators confirm chemical activity without exposing delicate pH probes to corrosive conditions, especially where accurate quantitative measurement are not required.

We've been selling pH test strips since 2005. All Indigo® pH test strips have Certificate of Analysis, Stability & SDS documents as listed below. They come 50 strips/pack with a guaranteed 3 year shelf life (dated back from expiration date "yyyy.mm.dd").

Details

These strips function as a first-line verification tool, complementing meters and laboratory analysis where higher precision is required.

Indigo®: pH 0-2.5 Test Strip Features

  • Narrow range optimized for strong acids (pH 0–2.5)
  • Fast colorimetric results in seconds
  • No calibration, reagents, or electronics
  • Disposable and field-friendly
  • Ideal for screening, training, and routine checks

Warning: These acids are highly corrosive when concentrated. Wear safety goggles & shield, lab coat & apron, proper gloves & test in a fume hood if possible. Add acid to water not the other way around.

Related information or images
Specifications

Color chart pH intervals: 0, 0.5, 1.0, 1.5, 2.0, 2.5

  • Intervals of 0.5 pH unit but can resolve 0.25 with practice
  • Dip strip, shake off excess liquid, compare to color chart immediately
  • Minimum shelf life is 3 years if kept sealed but >5 years is typical:
    Store at room temperature away from sunlight.
  • The number of strips (50) per pack is approximate.
Documentation

A Certificate of Conformance is available on request after shipment.
Indigo® pH test strips are made in USA & calibrated with NIST standards.

Test Strip Documentation

Stability Statement Certificate of Analysis SDS
Indigo pH paper 3-6 acid 0.5 pH intervals Stability Statement Indigo pH paper 3-6 acid 0.5 pH intervals Certificate of Analysis Indigo pH paper 3-6 acid 0.5 pH intervals SDS
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