Ormantine USA Ltd., Inc. products

Ormantine USA is a major supplier of ready-to-use diffusion tubes with a comprehensive laboratory analysis service. Diffusive (passive) samplers (diffusion tubes) fulfill many of the logistical, analytical and economic requirements of an ideal air monitor. Their simplistic design provides a cost effective, easy to distribute and use sampler, and with the use of various formulations of absorbent, suitable for a wide range of inorganic and organic applications. Technical Data sheets for all types of tubes and their applications are available on this website. These are backed up by a knowledgeable technical advice department.

Scientific studies have found an association between exposure to particulate matter emissions and significant health problems. The Air Particle Counters are affordable instruments which can monitor indoor air quality in homes and workplaces.

This tube can simultaneously measure a range of acid gases – Hydrogen fluoride, Hydrogen chloride, Nitric acid, Hydrogen bromide, Phosphoric acid and Sulfuric acid (HF, HCl, HNO3, HBr, HPO4 and H2SO4).

Ammonia diffusion tubes are suitable for long-term monitoring of ambient Ammonia pollution (sampling times are 2-4 weeks). These samplers are simple to use, requiring no specialist skills or power supply, making them an efficient monitoring option. With very low detection limits (in the low parts per billion range), even low levels of Ammonia pollution can be identified.

The largest emissions of Formaldehyde are associated with its manufacture and subsequent use, natural emissions are lower. This tube is used for active (pumped) sampling over a few hours to identify levels of Formaldehyde and other Aldehydes. Concentrations can be measured in the low parts per billion (ppb) range and above.

Hydrogen Sulfide (H2S) pollution is associated with an unpleasant odour, as are many other pollutants. Diffusion tubes are an inexpensive way of determining the chemical cause of the odour and are easy to use, requiring no specialist skills. Sampling periods are 2-4 weeks, and therefore the tubes are used to detect the long-term presence of hazardous Hydrogen sulphide gas. Hydrogen sulfide can be detected at low levels – detection limits are in the low parts per billion range.

Nitrogen oxides diffusion tubes provide long-term monitoring options with detection limits in the low parts per billion to parts per million range. These cost effective devices do not require specialist skills or time commitment and therefore give the user an efficient method for air quality monitoring.

Ozone diffusion tubes are Palmes-type diffusion tubes used for long-term monitoring over 2-4 weeks. Ozone can be detected in the low parts per billion to low parts per million ranges. Specifically designed for Ozone absorption, the tubes are inexpensive and require no specialist skills or training, an ideal air monitor for large areas or for long-term studies.

Previous land uses or accidental spills can result in Volatile Organic Compound (VOC) contamination of soils. Volatile and semi-volatile compounds can then permeate through the soil and may persist for several years.

Ambient air monitoring using our Sulfur dioxide diffusion tubes is a simple means of monitoring that requires no further maintenance after installation – an easy, cost-effective method. These Palmes-type tubes are designed for long-term monitoring, and offer measurement of Sulfur dioxide in the low parts per billion to parts per million range.