BS EN ISO 15091:2020 pdf free

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BS EN ISO 15091:2020 pdf free.Paints and varnishes-Determination of electrical conductivity and resistance.
BS EN ISO 15091 1 Scope This document specifies a method for determining the electrical conductivity and the electrical resistance of coating materials. The conductivity is usually measured for water-borne paints and varnishes, including electrodeposition coating materials, and the resistance is usually measured for solvent-borne paints and varnishes. If required, the resistivity of the coating material Is calculated from either of these measurements. ility in the presence of an electric field. This is particularly important for electrodeposition paints and coating materials which are processed electrostatically.
2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 1513. Paints and varnishes — Examination and preparation of test samples
ISO 3696. Water for analytical laboratory use — Specification and test methods
ISO 4618. Paints and varnishes — Terms and definitions
150 15528. Paints, varnishes and raw materials for paints and varnishes — Sampling
3 Terms and definitions
For the purposes of this document, the terms and definitions given in LSO 4618 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
Take the required quantity of the paint sample and immerse the electrodes in it, avoiding the formation of bubbles. If required, homogenize the material before doing this.
Prior to the measurement, check the measuring cell for cleanliness and remove any particles of dirt. Connect the measuring cell to the measuring instrument. For measurements using a direct-current measuring instrument, e.g. a Wheatstone bridge, read the value after a waiting time of 10 s in order to allow the electrical potential to become constant. For measurements using an alternating-current measuring instrument, read the value after an agreed waiting time.
When using continuously measuring instruments, the value shall only be read if it is constant for more than 20 s.
Immediately after the test, thoroughly clean the measuring cell.BS EN ISO 15091 pdf download.

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