Passivation Test Kit
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The Koslow Passivation Test Kit provides a significant Advance in passivation testing. It provides a calibrated quantifiable reading allowing you to satisfy your requirements for passivation verification, with minimal hassle and expense.

Passive stainless steel is not reactive with its environment. It is non-corroding. The passivation bath, usually nitric acid, cleans off surface free iron which causes rust spots and conditions the surface for the spontaneous formation of protective surface oxides. In effect, an equipotential surface is formed by passivation. The surface free iron can come from various metal working and polishing steps. To eliminate these rust spots on stainless steel, testing for complete passivation is essential, and in most cases, an integral part of industrial and government contracts.

Up to now passivation verification consisted of the old-fashioned clumsy copper sulfate or ferroxyl tests or the lengthy and complicated humidity and salt spray testing. But in selecting the Koslow Passivation Test kit 2026 you have chosen a rapid response method for your verification demands. The ASME BPE 2009 and the Federal Spec QQ-P-35C approved this surface corrosion potential measurement as a method of checking passivation, so the Passivation Test kit 2026 can be used with complete confidence .

The 2026 is a portable, light-weight instrument measures the corrosion tendency of the surface of stainless steels. It detects surface free iron through a galvanic process which is measured as a voltage. There is no size limitation to the test piece. A typical test, taking only 1-2 seconds, is simple: Electrical contact is made between a test piece through a moist pad. Then the sensitive Passi-Probe is pressed into the pad to complete the circuit and the cell voltage appears on the digital meter.

This measurement can be repeated over the surface of the test part and at sensitive spots, such as seams and welds. Values for passive and non-passive readings are included in the instructions and a standard 304 stainless steel coupon is provided for test comparison and instrument check-out. Samples reading as non-passive can be passivated by running them through the passivation bath and then retested. The Passivation Test kit 2026 can be used with all chromium containing stainless steels such as 300 and 400 series and the precipitation-hardened steels such as 17-4, 15-5, 17-7 and so on. Because no training is necessary the Passivation Test kit 2026 can be used successfully by non-technical personnel.



  • Check passivation of all grades of stainless steel
  • Monitor passivation bath and procedure
  • Detect lost passivation in service
  • Corrosion troubleshooting
  • Satisfy your contract requirements ASME BPE 2009


  • Fast and easy to use
  • Portable, lightweight, battery operated
  • Non-destructive passivation testing
  • Easy to read digital display
  • Safe - no hazardous chemicals
  • Certificate of Calibration - traceable to NIST

If you would like more information, please contact us to "Get On TRAQuE"


Anville Instruments
Protak Scientific
Solo 2

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Our contact details in Singapore are:

TRAQuE Pte. Ltd.
51 Bukit Batok Crescent,
#08-25 Unity Centre
+65 6316 3885
+65 9735 1384
+65 6316 3885

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TRAQuE Sdn. Bhd.
Suite 13-10, Level 13,
Johor Bahru City Square Office Tower,
106 - 108, Jalan Wong Ah Fook,
80000 Johor Bahru.

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