Accession Number:

AD1100823

Title:

A Test of the Framework Designed to Evaluate Compliance Monitoring Devices for Ballast Water Discharge

Descriptive Note:

Journal Article - Open Access

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC WASHINGTON United States

Report Date:

2018-07-03

Pagination or Media Count:

9.0

Abstract:

With the entry of the Ballast Water Management Convention into force, ballast water discharged from ships must meet standards limiting the concentrations of living organisms. Monitoring devices to confirm compliance with these standards would ideally be portable, easy-to-use instruments capable of rapid and accurate shipboard analysis of ballast water. Following a framework established for the validation of such potential devices, six devices were evaluated in a series of laboratory and field tests at three contrasting coastal locations. Devices were designed to quantify organisms in the 10 and 50 mu m size class. In all cases, the compliance monitoring devices were compared to the agreed-upon performance standard for quantifying living organisms microscopy-based, vital fluorophore approach. Specific results from these validations are available elsewhere, although examples are shown to demonstrate the analytical and statistical approaches used for gauging-with data analysis and statistical approaches-each devices performance. Each metric used to evaluate devices e.g., linearity, precision, and accuracy was informative. However, linearity between the microscopy-based method and the compliance devices, especially along a large range of organism concentrations, would not be suitable for establishing performance criteria

Subject Categories:

  • Marine Engineering

Distribution Statement:

APPROVED FOR PUBLIC RELEASE