Toyota TSM 0508G Determination of Volatile Components - Sampling Bag, Measurement Method for Volatile Components with Emissions

The “Toyota TSM 0508G Determination of Volatile Components - Sampling bag, measurement method for emissions and volatile components” standard developed by the Toyota vehicle company describes a measurement method for the determination of volatile organic compounds in air.

The atmosphere is a particularly difficult analytical system due to very low levels of substances to be analyzed, sharp changes in pollutant levels over time and place, and differences in wind, temperature and humidity. This makes the selection of an effective sampling technique for air analysis an important step towards reliable results. In general, methods for sampling volatile organic compounds involve collecting all air or reconcentrating samples on adsorbents. All methods differ from each other according to sampling technique, sorbent type, extraction method and identification technique.

Sampling is crucial in weather analysis because weather is complex and heterogeneous, constantly evolving over time and space, and affected by atmospheric and geographical conditions. Moreover, due to the low levels of pollutants found in the atmosphere, enrichment is often needed.

In general, the most common technique for sampling and enrichment of volatile organic compounds (VOCs) in air samples is the collection of all air in containers and solid sorbent enrichment, usually combined with a preconcentration step. Additionally, the solid sorbents and subsequent desorption techniques used to retain volatile organic compounds in the air are important.

In recent years, emphasis has been placed on developing online analysis methods that provide real-time data and are useful in providing rapid results. The application of adsorbent capture to online analysis and other techniques for online analysis, such as membrane extraction and selected ion flow tube mass spectrometry, are examined.

Air has complex properties. It is a heterogeneous system of gases, liquids and solid particles, and its composition can be affected by meteorological conditions, diffusion and reactivity, so sampling is very important in air analysis. The use of a sampling bag allows representative samples to be taken, avoiding any changes in their composition. Enabling field sampling should be as simple as possible. Additionally, due to low levels of contaminants in the atmosphere, enrichment is often needed to reach acceptable detection limits.

The most common techniques used to sample and concentrate volatile organic compounds in air are whole-air sampling in special receivers, collection on solid adsorbents, and continuous sampling and online analysis. Some of these require combination with another enrichment technique. Choosing the correct method or combination of methods may depend on the compounds of interest, expected concentration range, required sensitivity, accuracy and precision, selectivity, presence of interferences, sample type, portability and cost.

Collecting air samples in a container is the simplest way to collect them. Samples are often analyzed subsequently using gas chromatography (GC), either by direct injection or, more often, in combination with a pre-concentration step.

The automotive industry is heavily regulated over the VOC content emitted from polymers, adhesives, and fabrics in vehicle interiors because of research showing that VOCs can cause certain types of cancer and respiratory diseases. However, regulations regarding volatile organic compounds vary between each automotive manufacturer. But advanced laboratories are equipped to test these various automotive standards.

Among the numerous testing, measurement, analysis and evaluation studies carried out for businesses in various sectors, our organization, with its trained and expert staff and advanced technological equipment, measures emissions and volatile components using a sampling bag for the purpose of determining volatile components, within the scope of Toyota TSM 0508G standard. It also provides services.