Marine industry many portable and fixed gas detectors. Indeed, the use of gas detectors is often compulsory: SOLAS regulations XI-1/7 requires that vessels have at least one portable gas monitor on board for oxygen and flammable gas detection. In addition to personal detectors, fixed detectors are widely used in various locations throughout the vessel.
Every ship must carry at least one marine certified (see Marine Standards section below) portable atmosphere-testing instrument. As a minimum it should measure concentrations of oxygen (O2), flammable gases or vapours, hydrogen sulphide (H2S) and carbon monoxide (CO) prior to entry into enclosed/confined spaces.
Marine applications often generate extreme temperatures, high humidity and dirty conditions. From O2 monitoring in cargo room exhausts, to monitoring flammable and toxic gases within various void spaces, to pump room or cabins, fixed systems with sampling are all commonly used in marine settings.
Marine vessels can present multiple gas hazards, which makes gas detection and monitoring crucial. The table below shows some examples of such vessels and applications.
Products installed on any marine vessel must comply with internationally recognized regulations. The international standards that apply to a vessel depend upon where it is registered.
Examples of countries and relevant standards are:
It is essential that products sold for use on a vessel comply with the standards relevant to the country in which the ship is registered. For example, products fitted to a European-registered vessel undergoing a re-fit in Singapore must comply with the European MED directive.