Acidic Wastewater Pretreatment pH Test Strips

SKU: 33812-0025

$9.59USD or lower Each

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Screen highly acidic industrial wastewater before neutralization or discharge using Indigo® pH 0–2.5 test strips. Fast, on-site verification.

Industrial wastewater streams generated by metal processing, chemical manufacturing, cleaning operations, and acid pickling often enter pretreatment systems at extremely low pH. Indigo® Acid pH 0–2.5 test strips provide a rapid, reliable way to identify highly acidic influent before neutralization, protecting downstream treatment equipment and ensuring proper chemical dosing. Immediate visual results allow operators to respond quickly to process upsets without relying on fragile instrumentation

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 Specs Docs Reviews

Details

These strips are intended as a screening and verification tool, helping document extreme acidity prior to neutralization and confirm that waste streams are properly managed before discharge.

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

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Acidic Wastewater Pretreatment pH Test Strips