Documentation On Our Chlorine Residual Analyzers

TRO Sensor & NSF 61 certification

DPD Replacement Approval Without FA Retesting

IMO now considers Halogen Systems Inc. Amperometric Chlorine Sensor as an equivalent to DPD on Ballast Water Treatment Systems

20 ppm TRO Sensor Ballast Water Approval

Halogen Systems Inc. Incline Village, NV, USA is found to comply with DNV GL rules for classification – Ships and offshore units USCG Federal Register 46 CFR part 162, subpart 162.060-30

NSF 61 Certification

For our drinking water applications we have been approved for direct pipe insertion of our chlorine sensor. We meet the requirements for both the NSF/ANSI/CAN 61 - 2020 & NSF/ANSI/CAN 372 -202 respectively.

Ballast Water TRO Evaluation Test Report

"It is DNV GL’s opinion that the testing performed by HSI demonstrated that the amperometric TRO sensor by HSI may be applied by BWTS for measuring the TRO of the treated ballast water both during ballasting and deballasting operations. The HSI TRO sensor offers comparable performance to the online DPD based TRO sensors currently applied by BWTS."

TRO Sensor Ballast Water Approval Statement

Halogen Systems Inc. Incline Village, NV, USA is found to comply with DNV GL rules for classification – Ships and offshore units USCG Federal Register 46 CFR part 162, subpart 162.060-30

The apparatus… was found to comply with the following standards:

IEC 60079-0 : 2011  Edition:6.0 – Explosive atmospheres – Part 0: General requirements

IEC 60079-1 : 2014-06 – Edition:7.0 – Explosive atmospheres – Part 1: Equipment protection by flameproof enclosures “d”

IEC 60079-11 : 2011 – Edition:6.0 – Explosive atmospheres – Part 11: Equipment protection by intrinsic safety “i”

We evaluated the instruments based primarily upon quantitative measurements of accuracy and precision.
The verification measurements are described below:
Accuracy is a measure of the closeness of a measured value to the true or known value. In this case, since there was no known or true value, the accuracy of the TRO instruments was determined by comparing measurements from the instrument to the reference method.
Precision is a measure of the repeatability of a measurement. Instrument precision was determined by calculating the standard deviation of 12 consecutive measurements of a single, stable dose level.
Reliability is the ability to maintain functionality of the device and stability of data collections over time. Reliability of instruments during the laboratory tests was determined in two ways. First, comparisons were made of the percent of data recovered as a proportion of the data that the device was intended to have collected over a set period of time. The physical condition of the instrument (e.g., physical damage, flooding, corrosion, battery failure, etc.) were qualitatively described.

Small Business Innovation Research

Seawater has a relatively complex chemistry, and is more corrosive than freshwater, all of which complicates development of water-treatment technology. Halogen’s final product, which emerged through a years’-long SBIR-supported process, 2009 to 2015, is the Ballast Water Total Residual Oxidant Sensor (TRO). The reliable sensor rapidly measures salinity and both chlorine and bromine. It’s installed directly into the ballast pipe and doesn’t need reagents or mem- branes. Nor does it require much maintenance given its self-cleaning electrodes and built-in resistance to biofouling.

KR Type Approval Certificate - Ballast Water TRO

Approved in accordance with the relevant requirement of this Society's Rules and/or of the recognized standard as follows and entered in the "List of Approved Manufacturers and Type Approved Equipment". Pt. 6, Ch. 2, Art. 301 of the Rules for Classification, Steel Ships

ATEX Certificate

KR Type Approval ATEX


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