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ISO 19840 FREE PDF

ISO and PSPC, the term used is. “nominal dry film thickness.” • For consistency in comparisons of area in this article, square meters are used to describe. STANDARD. ISO. Second edition. Reference number. ISO (E). This is a free 5 page sample. Access the full version online. ISO Paints and varnishes – Corrosion protection of steel structures by protective paint systems – Measurement of, and acceptance.

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Original packing shall be firmly closed; labels and stickers shall be plain and good to be read. Annex B describes a method for multiple readings. Protective paint systems ISOPaints and varnishes — Corrosion protection of steel structures by protective paint systems — Part 6: For dated references, only the edition cited applies. ISO shall not be held responsible for identifying any or all such patent rights.

Acceptance criteria: ISO and coating system

Where individual readings, based on adjustment on a smooth, lat steel surface without the use of correction values, are speciied or agreed, it is important to recognize that this method does not conform with this International Standard. ISO and coating system data sheet.

Various forms of the instrument are available, including a simple pencil type, a spring balance type and another type to which tension is applied by turning a calibrated circular dial until the magnet and attached spring detach from the coated surface.

Number of measurements to be taken in accordance with ISO For some instruments, setting to zero is required with the probe on the prepared but uncoated surface.

The value obtained is the correction value. For maximum numbers of repeated measurements within an inspection area see Table 1. If the number of readings is not speciied in the contract or speciication, ive individual readings see 3.

If the structure has not been divided into individual inspection areas, the whole structure is considered as the inspection area for measuring the dry-ilm thickness.

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Safety of work As many paints especially diluted with solvent contain unhealthy substances, it is necessary to observe the established norms and safety rules. Rotary Wheel Heat Exchangers. NOTE Other methods using a similar principle are available.

During application of anticorrosive coatings only accepted by painting system 7 paints and solvents should be applied. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. In this method, no correction value is used.

Acceptance criteria: ISO 19840 and coating system

In case of paints are stored in a cold premise, it is necessary to place them before usage for a while in warm that they were adequately warmed.

The methods in Annexes A and B are intended to be used only if speciied or agreed. For more details, see Annex C. If the acceptance criteria above are not met, the inspection area shall be rejected see also ISO series. Help Center Find new research papers in: The criteria deined above include all measurement uncertainties for example instrument accuracy, operator skillprovided that the requirements of this International Standard have been met.

The procedure described in this International Standard is based on the use of instruments of the permanent magnet, electromagnet and eddy current type. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.

Prior to start painting works responsible for these works person should check and consider all the possible ambiguities. This new measurement will then be the individual dry-ilm thickness. Degree of the surface preparatory ftee of products should correspond to requirements of specification Sa3 — blast cleaning to pure metall.

Repair of defects 3.

ISO – Free Download PDF

Documents connected with procedure ISO Preparation of steel substrates before application of paints and related products — Visual assessment of surface cleanliness — Part 1: To minimize measurement errors on a blast-cleaned surface, it is fref that at least one of the shims used for adjustment be thinner than the ilm to be measured.

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The measurement instruments used are adjusted. Page 3 of 9 Acceptance criteria: The magnetic ield strength is related to the coating thickness. Inspection should be done for ever y parts. It is necessary to handle painting materials very accurately, prevent their hit into the earth, reservoirs. Representative photographic examples of the change of appearance imparted to steel when blast-cleaned with different abrasives ISO NOTE 1 The correction value is applied once to every reading, no matter if the coating consists of a single layer or freee layers see illustration in Figure io.

General introduction ISOPaints and varnishes — Corrosion protection of steel structures by protective paint systems — Part 2: Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee.

Individual reading Correction value used Resulting individual Individual dry-film see Table 2 of dry-film thickness thicknesses outside of ISO They produce a coating thickness measurement by measuring the change in magnetic ield strength within their probes due to the proximity of the magnetic substrate.

Design considerations ISOPaints and varnishes — Corrosion protection of steel structures by protective paint systems — Part 4: Cree be done on every parts. Each dificult area, e. Waste should be collected and utilized according to the valid legislation and the established rules. A10 Sketch for identification of inspection area: They measure the magnetic ield strength produced by eddy currents caused by the probe in a conductive substrate.

Adjust the scale reading to the value lso the shim. In many instances, the effect of these changes will be small compared to the effect of the blast-cleaned surface inish which is dealt with in the main body of this International Standard.