What is ISO 22031 about?
ISO 22031 discusses sampling and test methods for the cleanable filter. ISO 22031 specifies a method for sampling fabric filter medium from a filter system in operation and a test method for evaluating the degradation of the sampled filter medium. It applies to both woven and nonwoven fabric filter media.
ISO 22031 also specifies a storage and transportation method for the sampled filter medium that will protect the health of workers and people conducting the tests
Who is ISO 22031 for?
ISO 22031 on sampling and test method for cleanable filter media taken from filters of systems in operation is useful for:
- Municipal garbage incinerators
- Coal-fired boilers
- Iron manufacturer
- Cement Factories
- Power Plants
Why should you use ISO 22031?
Since filter media are used under various gas and dust conditions for a long time, their physical and chemical properties change (deteriorate) with operating time due to various causes. The important filter characteristics such as collection performance and residual pressure drop change with the operation period. Changes in the physical and chemical properties of the filter medium, i.e., physical, and chemical degradation is caused by many factors, such as heat, particle accumulation, reaction with corrosive gases and deposited particles, and mechanical reasons like clogged weave openings and increasing size of weave openings, the combination of those factors and so on.
ISO 22031 provides a standard method for sampling filter elements from a dust collector system in operation and a test method for monitoring sampled filter elements and the system through measurement of basic filter properties.
ISO 22031 provides you with a method for removing the used filter medium from a dry type filtering dust collector, a method for removing dust from the sampled filter medium as part of the preparation for testing, and measurement parameters for the test specimen. The number of filter elements to be sampled, their positions in the blocks of filter elements in the dust collector, the position and the size of the test specimens to be cut out from the filter element, measurement parameters and their test methods are also specified.
