Environmental Technology Publications Limited

The CoGDEM Guide to Gas Detection


Industrial gas detectors form an important part of safety systems designed to protect users from the harmful effects of flammable, toxic or asphyxiant gases. These gases can cause explosions, damage health or deplete the oxygen content of the air. Consequently, accurate gas detection is vital for protecting human life as well as process plant and the environment.

Authors / Editors:
Print ISSN:
Sep. 2012

This practical guide has been written by CoGDEM (the Council of Gas Detection and Environmental Monitoring) to assist users or specifiers of gas detection equipment. The book begins with a quick reference for selecting a gas detection system, which outlines the most salient points. There is more detail on this topic as well as on a variety of other areas such as gas detection requirements and training, sensor technologies, and instrument calibration and maintenance. There is also information on the science of gases and lists of relevant reference documents. The book covers UK, EU and global regulations and standards.

The chapters are written by key experts, providing comprehensive information for novice and experienced industry professionals in the gas detection field.

Take a look at the book in a page turning digital version by clicking HERE>> - To view all the pages, the book needs to be ordered.


Chapter 1 Introduction
1.1 Background to this Guide
1.2 Safety
1.3 CoGDEM: The UK Trade Association for the Gas
Detection Industry

Chapter 2 A Quick Guide to Selecting a Gas Detection System
2.1 Types of Gas Hazards
2.2 Selecting for Your Concentration Range
2.3 Environmental Considerations: Open Path, Point
Source, Portables?
2.4 Gas Detection System Selection

Chapter 3 The Chemistry and Dangers of Gases
3.1 The Structure of Gas Molecules
3.2 States of Matter
3.3 Molecular Energies
3.4 Gas Characteristics Important to Gas Detection
3.5 Gas Distribution and Gas Detection
3.6 Units of Measurement
3.7 Routinely Monitored Gases
3.8 Gas Detection and its Role in Safety Management
3.9 Staff Training
Further Reading

Chapter 4 Gas Detection Requirements and Training
4.1 Introduction
4.2 Hazardous Area Safety
4.3 Performance Requirements
4.4 FSM
4.5 Training

Chapter 5 Sensor Technologies
5.1 Oxygen
5.2 Carbon Dioxide and Infrared Photometry (also forHydrocarbons)
5.3 Inert and Asphyxiant Gases – Thermal Conductivity Sensors
5.4 Toxic Gases
5.5 Flammable Gases – Pellistors
5.6 VOCs
5.7 Gas Leak Detection
Further Reading

Chapter 6 A Guide to Gas Detector Selection
6.1 Introduction
6.2 Equipment Types
6.3 Selection (Considerations)
6.4 Installation and Use
6.5 Maintenance
6.6 Specifications Explained

Chapter 7 Calibration
7.1 Introduction
7.2 Calibration Concepts
7.3 Calibration Methods
7.4 Factors Affecting Calibration
7.5 Gas Cylinder Technology
7.6 Glossary of Terms
vi The CoGDEM Guide to Gas Detection

Chapter 8 Performance Evaluation
8.1 Introduction
8.2 Test Conditions
8.3 Mechanical Tests
8.4 Environmental Tests
8.5 Accuracy and Stability
8.6 Electrical/Electronic Tests
8.7 Software Evaluation

Chapter 9 Reference Documents
9.1 Standards List
9.2 Other Useful Information Sources
Appendix 1 An Overview of CoGDEM
A1.1 History
A1.2 CoGDEM’s Objectives
A1.3 Benefits of Being a Member of CoGDEM
A1.4 Categories of CoGDEM Membership
Appendix 2 Non-industrial and Domestic Gas Detection

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