Overview
ISO 22637:2019 specifies a laboratory test method to determine the electrical resistance (reciprocal of electrical conductivity) of adhesive films and of floor-covering/adhesive composites. The method covers two specimen types: cured adhesive films applied to a glass plate (adhesive resistance, R4) and conductive floor coverings adhesively bonded to fibre‑cement substrates (vertical resistance of composite, R5). The standard defines required apparatus, specimen preparation, conditioning/storage sequences, test voltages and measurement procedure, and minimum test report content.
Keywords: ISO 22637, electrical resistance test, adhesive films, floor covering adhesives, adhesive resistance R4, vertical resistance R5, conductive floor coverings.
Key topics
- Scope and purpose: Measures electrical resistance of adhesive films and bonded floor‑covering composites under controlled laboratory conditions; does not account for every real‑world influence.
- Specimen types:
- Adhesive film on glass for adhesive resistance (R4).
- Floor covering bonded to fibre‑cement panel for vertical/composite resistance (R5).
- Apparatus and materials: glass plate, uncoated fibre‑cement panels, adhesive applicator/trowel, copper strips, roller, tripod electrode (per EN 1081), calibrated resistance meter (recommended internal resistance 100 kΩ), heating chamber.
- Conditioning and storage: Defined sequences (examples in the standard) such as standard atmosphere (23 °C/50 % RH) and elevated temperature exposure (e.g., 40 ± 3 °C) with specific durations for R4 and R5 specimens.
- Test procedure: Controlled placement of electrodes (copper strips or tripod electrode), application of test voltages in sequence (e.g., 10 V, 100 V, 500 V as indicated), reading resistance after a fixed time, and repeating at higher voltage if limits exceeded.
- Reporting: Minimum information includes reference to ISO 22637:2019, adhesive and floor‑covering designations and batch numbers, conditioning sequence, substrate type, trowel/open time, electrodes used, measured R4 and R5 values, deviations and test date.
Applications
- Quality control and product development for adhesive manufacturers and flooring producers to characterize electrical properties of adhesives and bonded systems.
- Independent test laboratories performing conformity testing and material certification.
- Specifiers, architects and facility engineers selecting adhesive/flooring systems where electrostatic behavior or conductive performance is critical (e.g., ESD-sensitive environments, cleanrooms, electronics manufacturing).
- Regulatory and standards bodies referencing electrical resistance performance for resilient and conductive floor coverings.
Related standards
- ISO 472 (plastics vocabulary)
- ISO 554 (standard atmospheres for conditioning)
- ISO 9142 (laboratory ageing conditions)
- ISO 15605 (adhesive sampling)
- EN 1067, EN 1081 (resilient floor coverings electrical resistance)
ISO 22637 is intended to be used alongside these referenced standards to ensure consistent sampling, conditioning and electrode/test arrangements when assessing electrical resistance of adhesive films and bonded floor coverings.
Open preview (PDF)Adhesives — Test of adhesive for floor covering — Determination of the electrical resistance of adhesive films and composites