SIST EN ISO 16891:2016 PDF

Overview

EN ISO 16891:2016 / ISO 16891:2016 defines a standardized laboratory test method to evaluate the degradation of cleanable filter media, with emphasis on nonwoven fabric filters commonly used in industrial bag-filter systems. The standard describes controlled, accelerated exposure of filter media to heat and corrosive gases to measure relative changes in physical properties (notably tensile strength) over simulated long-term service. Results are intended to inform filter bag design, media selection and development, and operating-parameter choices - but are not intended to predict absolute performance of full-scale filter installations.

Key topics and technical requirements

• Test principle: Controlled gas-phase exposure under defined temperature and gas-concentration conditions to accelerate degradation mechanisms relevant to industrial operation.
• Specimen preparation: Guidance on sampling, sheet preparation and selection (air-permeability screening) for consistent test specimens.
• Exposure system components: Requirements and descriptions for an exposure chamber, heating system, gas supply, gas analyzer and gas treatment device.
• Test conditions & procedure: Specification of exposure periods, attachment of samples, and repeatability considerations for comparative testing.
• Post-exposure evaluation: Tensile-strength/tenacity test methods, specimen sizing, characterization of degradation and data reporting.
• Informative annexes: Causes and results of fabric degradation, suggested evaluation methods, experimental setups, service temperature information and example test reports - useful for interpretation and repeatability.
• Scope limits: Emphasis on relative rather than absolute property changes; suitable for synthetic-fibre nonwoven filters and similar cleanable media.

Applications and who uses this standard

• Filter media manufacturers: Evaluate new materials, validate formulations and compare durability under simulated service.
• Bag-filter designers and OEMs: Select media compatible with expected gas chemistries and temperatures; optimize bag design and cleaning regimes.
• Industrial plant operators (power plants, cement, waste incineration, metal processing): Assess media suitability for specific exhaust gas compositions and operating temperatures.
• Independent test laboratories and R&D teams: Provide repeatable, comparable degradation data for product claims and development.
• Standards bodies and consultants: Harmonize testing approaches and advise on regulatory/contractual specifications.

Practical benefits include improved media selection, reduced risk of premature bag failure or dust leakage, and data-driven choices of service temperature and cleaning strategies.

Related standards

• ISO 11057 (filtration performance evaluation) - referenced for complementary filtration characteristic tests.
• National equivalents/endorsements: EN ISO 16891:2016 (CEN adoption).
• Note: Other national methods (e.g., GB/T 6719:2009 liquid-dip tests) exist for different exposure modalities; ISO 16891 focuses on gas-phase exposure.