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BS ISO 22013:2021

BS ISO 22013:2021

$198.66

Marine environment sensor performance. Specifications, testing and reporting. General requirements

Published By Publication Date Number of Pages
BSI 2021 54
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This document defines terms, specifies test methods and provides reporting requirements for marine sensor specifications to ensure a consistent reporting by manufacturers.

It is applicable to those devices known as conductivity-temperature-depth (CTDs), sound velocity probes, multi-parameter sondes and dissolved gas sensors, that measure parameters such as conductivity, temperature, pressure, sound speed, dissolved oxygen, turbidity, pH, and chlorophyll in seawater.

It is also generally applicable to all marine environment instruments.

NOTE 1

A ‘CTD’ directly measures conductivity, temperature, and pressure. Depth is derived from pressure using an equation.

NOTE 2

The term ‘sound velocity probe’ is widely used to describe instruments that measure sound speed. In this document the term ‘ sound velocity’ is used when describing the type of sensor, and the term ‘sound speed’ is used when describing the parameter or measurand, but these terms can be used interchangeably.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 Foreword
8 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
22 4 Specifications
4.1 General
4.2 Calibration
23 4.3 Range
4.3.1 Calibrated range
4.3.2 Measuring range
4.3.3 Maximum range
4.4 Accuracy
4.5 Resolution
4.6 Response time
4.7 Depth and pressure
4.7.1 Maximum depth rating
4.7.2 Crush depth rating
4.8 Sample rate
4.9 Mechanical
4.9.1 Wetted materials
24 4.9.2 Exterior dimensions
4.9.3 Mass or weight in air
4.9.4 Weight in freshwater
4.9.5 Weight in seawater
4.9.6 Operating temperature range
4.10 Electrical
4.10.1 Input voltage range
25 4.10.2 Operating power consumption
4.10.3 Startup power consumption
4.11 Interface
4.11.1 Electrical connections
4.11.2 Communications protocol
4.12 Stability
26 4.13 Shelf-life
5 Test methods
5.1 Overview
5.2 General experimental design
5.2.1 General
5.2.2 Sensor settings
5.2.3 Reference
5.2.4 Re-calibration
5.3 Calibration
5.3.1 General
27 5.3.2 Calibration method
5.3.3 Experimental design — Layout of the calibration
5.3.4 Calibration curve
28 5.3.5 Post-calibration operations
5.4 Accuracy
5.4.1 General
5.4.2 Modifications to ISO 5725
29 5.4.3 Statistical model
5.4.4 Determination of precision
30 5.4.5 Experimental design — Layout of the precision experiment
31 5.4.6 Reference
5.4.7 Determination of trueness (bias)
5.4.8 Statistical analysis
5.5 Resolution
5.5.1 General
32 5.5.2 Experimental design
5.5.3 Calculation of 
5.5.4 Calculation of 
5.6 Response time
5.6.1 General
5.6.2 Experimental design
33 5.6.3 Response curve
34 5.7 Depth and pressure
5.7.1 Maximum depth rating
35 5.7.2 Crush depth rating
5.7.3 Pressure case void
5.8 Mechanical
5.8.1 Wetted materials
5.8.2 Weight in freshwater
36 5.8.3 Weight in seawater
5.8.4 Operating temperature range
5.9 Electrical
5.9.1 Input voltage range
5.9.2 Operating power consumption
37 5.9.3 Startup power consumption
5.10 Interface
5.10.1 General
5.10.2 Power on/standby
5.10.3 Galvanic isolation test
5.11 Stability
5.11.1 General
5.11.2 Experimental design
38 5.11.3 Calculation of d
39 5.11.4 Field stability
5.12 Shelf-life
5.12.1 General
5.12.2 Experimental design
5.12.3 Calculation of d
6 Publication
6.1 General
40 6.2 Data sheets
6.2.1 General
41 6.2.2 Test reports
6.3 Calibration certificates
43 Annex A (informative) Determination of the accuracy (precision and trueness) — Example
47 Annex B (informative) Determination of the response time — Examples
51 Annex C (informative) Data sheet for a sound velocity sensor — Example
52 Bibliography

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BS ISO 22013:2021
$198.66