25.220.60 - Organic coatings
ICS 25.220.60 Details
Organic coatings
Organische Beschichtungen
Revetements organiques
Organske prevleke
General Information
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This Part of EN 13523 describes the procedure for determining objectively the chalking resulting from natural or artificial weathering of an organic coating on a metallic substrate. The advantage of this procedure for measuring chalking of an organic coating is that the result can be read off immediately on an instrument. Subjective judgement by visual comparison of test specimens with referencee specimens is not necessary. Experience to date with this test method has been based mainly on artificially weathered specimens. Reproductible results can only de obtained by careful execution of the test.
- Standard8 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft8 pagesEnglish languagesale 10% offe-Library read for1 day
This document describes the procedure for determining objectively the chalking resulting from natural or artificial weathering of an organic coating on a metallic substrate.
The advantage of this procedure for measuring chalking of an organic coating is that the result can be read off immediately on an instrument. Subjective judgement by visual comparison of test specimens with reference specimens is not necessary.
Reproducible results can only be obtained by careful execution of the test. Special attention is paid to the adhesive tape and its application to the test surface.
The test method is not applicable to embossed coatings. In the case of textured coatings, the degree of texture will influence readings. Also, dirt collection can influence readings on outdoor weathered specimens.
NOTE Different methods for assessing chalking are in use. The results of these different methods are not comparable.
- Standard8 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft8 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies requirements for continuously organic coated (coil coated) steel flat products. It particularly specifies the performance requirements.
The products covered are wide strip, sheet cut from wide strip, slit wide strip, strip rolled in widths less than 600 mm and cut lengths (from sheet or strip).
NOTE National provisions can set up relationships between the performances of the coatings as required in this document and the outdoor atmospheres and ambiances required for a relevant building under study.
This document is not applicable to continuously organic coated flat products made of:
- tin mill products;
- electrical steels.
- Standard41 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft40 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies a procedure for evaluating the resistance to humidity of an organic coating on a metallic substrate, by means of exposure in a humidity cabinet under controlled conditions.
- Standard10 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft10 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies the procedure for determining the resistance to water immersion of an organic coating on a metallic substrate.
The test is applicable to all kinds of organic coatings, including metallics and embossed, textured, pearlescent and printed coatings. The results of the test give an indication of the resistance of the coil coated metal to water.
The method is not intended to reproduce any particular condition of condensation.
- Standard10 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft10 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies a procedure for evaluating the resistance to continuous condensation of an organic coating on a metallic substrate, by means of exposure in a humidity cabinet under controlled conditions.
- Standard8 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft8 pagesEnglish languagesale 10% offe-Library read for1 day
This document gives guidelines on how to perform accelerated cyclic electrochemical technique (ACET)
with organic protective coatings on metals.
This document specifies the execution of an ACET test and the considerations relative to the samples
and electrochemical cell, test parameters and procedure.
This document also provides guidelines for the presentation of experimental results such as Bode plots
and relaxation curves and other types of information obtained.
Some typical examples are shown in Annex A.
- Standard23 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft19 pagesEnglish languagesale 10% offe-Library read for1 day
This Part of EN 13523 specifies a procedure for evaluating the humidity resistance of an organic coating (coil coating) on a metallic substrate, by means of exposure in a humidity cabinet under controlled conditions.
- Standard10 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft10 pagesEnglish languagesale 10% offe-Library read for1 day
This Part of EN 13523 specifies a procedure for evaluating the condensation resistance of an organic coating (coil coating) on a metallic substrate, by means of exposure in a humidity cabinet under controlled conditions.
- Standard8 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft8 pagesEnglish languagesale 10% offe-Library read for1 day
This Part of EN 13523 describes the procedure for determining the resistance to water immersion of an organic coating on a metallic substrate. The test is applicable to all kinds of organic coatings, including metallics and embossed, textured, pearlescent and printed coatings. The results of the test give an indication of the resistance of the coil coated metal to water. The method is not intended to reproduce any particular condition of condensation.
- Standard10 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft10 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies methods for specifying decorative and protective organic coatings on aluminium and its alloys. It defines the characteristic properties of organic liquid coatings and provides testing methods with minimum performance requirements, with reference to the application and the aggressiveness of the environment in which the painted aluminium exists. This document is applicable to aluminium products with liquid coatings for general applications, and liquid coatings mainly processed by electrostatic liquid spraying, air spraying or airless spraying. This document does not apply to coil coatings on aluminium.
- Standard40 pagesEnglish languagesale 15% off
This document specifies methods for specifying decorative and protective powder coatings on aluminium and its alloys. It defines the characteristic properties of powder coatings and provides testing methods with minimum performance requirements, with reference to the application and the aggressiveness of the environment in which the coated aluminium exists. This document does not apply to coil coatings on aluminium.
- Standard29 pagesEnglish languagesale 15% off
This document specifies the procedure for determining the gloss of an organic coating on a metallic substrate. Gloss is a characteristic of fundamental importance to the appearance of the coil coated product.
The apparatus requires a flat specimen of size greater than the aperture, thus, uneven surfaces cannot be measured.
This method is applicable to all pigmented and unpigmented coatings including metallic/pearlescent coatings. However, for textured coatings it is only indicative.
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft8 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies the overall scope of all parts of EN 13523, gives definitions common to all parts and describes how sampling and preparation of test panels for most of the individual test methods are to be carried out.
- Standard8 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft8 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies the procedure for determining the resistance to cracking of an organic coating on a metallic substrate when bent through 135° to 180°. The degree of adhesion can also be evaluated.
Both folding and mandrel methods are considered. The folding method is more often used for practical purposes but where more precise determinations are required, the mandrel method is the preferred method.
The cylindrical bend method can also be used for a pass/fail decision by using an agreed mandrel.
The choice of the appropriate test method is limited by the thickness and/or the hardness of the substrate.
The feasibility of the test depends on the type and thickness of the substrate. During the procedure, the mandrel is not intended to deform.
- Standard16 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft16 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies procedures for determining the instrumental colour difference (CIELAB) of an organic coating on a metallic substrate compared to another one used as a reference (usually called reference) and the metamerism depending on the illuminant.
When two colour specimens have identical spectral reflectance curves, they are matching under any illuminant irrespective of its spectral characteristics. This is termed a “spectral match”. It is also possible for two colour specimens having different spectral reflectance curves to match visually under a given light source but not to match under another light source with different spectral characteristics; such matches are termed “metameric”.
One quantitative description of metamerism is the so-called “metamerism index”.
Information on the metamerism index is of limited value where ΔE (instrumental colour difference for a given illuminant) is > 0,5. The metamerism index is not suited for determining the absolute colour difference or colour consistency of a given specimen at change of illuminant.
The colour difference under the reference illuminant is to be measured in colour coordinates L*, a* and b*.
Excluded from this method are organic coatings producing fluorescence and/or which are multicoloured, pearlescent or metallic.
Establishing a reference as well as the magnitude of an acceptable colour difference are not covered by this method.
Two methods are given in this document:
a) instrumental colour difference measurement using a tristimulus colourimeter;
b) instrumental colour difference measurement using a spectrophotometer or equivalent.
It is advised that care is taken when measuring e.g.
— textured surfaces;
— fluorescent coatings;
— metameric coatings;
— multi-coloured, pearlescent, metallic or special colour effect coatings.
- Standard11 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft11 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies requirements for continuously organic coated (coil coated) steel flat products. It particularly specifies the performance requirements.
The products covered are wide strip, sheet cut from wide strip, slit wide strip, strip rolled in widths less than 600 mm and cut lengths (from sheet or strip).
NOTE National provisions can set up relationships between the performances of the coatings as required in this document and the outdoor atmospheres and ambiances required for a relevant building under study.
This document is not applicable to continuously organic coated flat products made of:
- tin mill products;
- electrical steels.
- Standard41 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft40 pagesEnglish languagesale 10% offe-Library read for1 day
This part of EN 13523 specifies procedures for determining the instrumental colour difference (CIELAB) of an organic coating on a metallic substrate.
Establishing a standard as well as the magnitude of an acceptable colour difference are not covered by this method.
Two appropriate methods are given in this part of EN 13523:
a) instrumental colour difference measurement using a tristimulus colorimeter;
b) instrumental colour difference measurement using a spectrophotometer or equivalent.
Care shall be taken when measuring e.g.
- textured surfaces;
- fluorescent coatings;
- metameric coatings;
- multi-coloured, pearlescent, metallic or special colour effect coatings.
In order to determine whether metamerism is present, the metamerism index is determined (see EN 13523-15) and/or a visual examination (see EN 13523-22) is performed with different artificial light sources.
- Standard11 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft11 pagesEnglish languagesale 10% offe-Library read for1 day
This part of EN 13523 specifies the procedure for determining the resistance to cracking of an organic coating on a metallic substrate when bent through 135° to 180°. The degree of adhesion may also be evaluated.
Both folding and mandrel methods are considered. The folding method is more often used for practical purposes but where more precise determinations are required, the mandrel method is recommended.
The cylindrical bend method may also be used for a pass/fail decision by using an agreed mandrel.
The choice of the appropriate test method is limited by the thickness and/or the hardness of the substrate.
The feasibility of the test depends on the type and thickness of the substrate. During the procedure, the mandrel should not deform.
- Standard16 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft16 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies the procedure for determining the gloss of an organic coating on a metallic substrate. Gloss is a characteristic of fundamental importance to the appearance of the coil coated product.
The apparatus requires a flat specimen of size greater than the aperture, thus, uneven surfaces cannot be measured.
This method is applicable to all pigmented and unpigmented coatings including metallic/pearlescent coatings. However, for textured coatings it is only indicative.
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft8 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies the overall scope of all parts of EN 13523, gives definitions common to all parts and describes how sampling and preparation of test panels for most of the individual test methods are to be carried out.
- Standard8 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft8 pagesEnglish languagesale 10% offe-Library read for1 day
This document defines terms of the procedure for determining the adhesion of an organic coating to a metallic substrate after indentation produced by slow deformation.
The resistance to cracking can also be evaluated.
- Standard11 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft11 pagesEnglish languagesale 10% offe-Library read for1 day
This document describes a laboratory method for testing foam adhesion to an organic coating on a metallic substrate under dry and wet conditions.
- Standard8 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft8 pagesEnglish languagesale 10% offe-Library read for1 day
This document specifies test procedures for assessing the effect of chemicals on the characteristics of an organic coating on a metallic substrate. It covers testing by using defined substances and to assess the change in characteristics such as discoloration, change in gloss, blistering, softening, swelling and loss of adhesion. Assessment of other phenomena can be agreed between the interested parties
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft9 pagesEnglish languagesale 10% offe-Library read for1 day
This European Standard describes a laboratory method for testing foam adhesion to an organic coating on a metallic substrate under dry and wet conditions.
- Standard8 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft8 pagesEnglish languagesale 10% offe-Library read for1 day
This Part of EN 13523 defines terms of the procedure for determining the adhesion of an organic coating to a metallic substrate after indentation after slow deformation.
The resistance to cracking may also be evaluated.
- Standard11 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft11 pagesEnglish languagesale 10% offe-Library read for1 day
This Part of EN 13523 specifies test procedures for assessing the effect of chemicals on the characteristics of an organic coating on a metallic substrate. It covers testing by using defined substances and to assess the change in characteristics such as discoloration, change in gloss, blistering, softening, swelling and loss of adhesion. Assessment of other phenomena may be agreed between the interested parties.
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft9 pagesEnglish languagesale 10% offe-Library read for1 day
This document defines the requirements and test methods for factory applied thermoplastic acid modified polyolefin (TMPO) coatings used for the protection of ductile iron fittings and accessories according to EN 545, EN 598, EN 969, EN 12842 and EN 14525:
- conveying water (e.g. potable water, raw water, …) at operating temperature up to 50 °C; or
- conveying waste water at operating temperature up to 45 °C; or
- conveying gas at operating temperature up to 50 °C;
- suitable for external environments, i.e. soils, waters and atmospheres of all common corrosion loads, characterized in D.2.3 of EN 545:2010.
- Standard17 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft17 pagesEnglish languagesale 10% offe-Library read for1 day
This European Standard defines the requirements and test methods for factory applied epoxy coatings (fusion bonded powder or liquid two-pack) used for the corrosion protection of ductile iron fittings and accessories conforming to EN 545, EN 598, EN 969, EN 12842, EN 14525, for:
- conveying water (e.g. potable water) at operating temperature up to 50 °C excluding frost; or
- conveying waste water at operating temperature up to 45 °C excluding frost; or
- conveying gas at operating temperature up to 50 °C;
- suitable for external environments, i.e. soils, waters and atmospheres of all common corrosion loads, characterized in EN 545:2010, D.2.3.
- Standard18 pagesEnglish languagesale 10% offe-Library read for1 day
This part of the EN 13523 series specifies two methods for determining the numerical evaluation of the adhesion of strippable films which have previously been applied to an organic coating on a metallic substrate.
Samples can be tested irrespective of whether the strippable film has been applied in the laboratory or on the production line.
NOTE Method 1 is preferred for films with adhesive and method 2 for films without adhesive.
- Standard10 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft11 pagesEnglish languagesale 10% offe-Library read for1 day
This part of EN 13523 specifies the panel design and describes the procedure for determining the resistance to outdoor exposure of an organic coating on a metallic substrate.
- Standard17 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft18 pagesEnglish languagesale 10% offe-Library read for1 day
This part of the EN 13523 series specifies the procedure for evaluating the degree of curing by assessing the resistance of a cured organic coating film, applied on a metallic substrate, to a specified organic solvent.
- Standard8 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft8 pagesEnglish languagesale 10% offe-Library read for1 day
This European Standard defines the requirements and test methods for factory applied epoxy coatings (fusion bonded powder or liquid two-pack) used for the corrosion protection of ductile iron fittings and accessories conforming to EN 545, EN 598, EN 969, EN 12842, EN 14525, for:
- conveying water (e.g. potable water) at operating temperature up to 50 °C excluding frost; or
- conveying waste water at operating temperature up to 45 °C excluding frost; or
- conveying gas at operating temperature up to 50 °C;
- suitable for external environments, i.e. soils, waters and atmospheres of all common corrosion loads, characterized in EN 545:2010, D.2.3.
- Standard18 pagesEnglish languagesale 10% offe-Library read for1 day
To allow ductile iron pipe manufacturers and users of the product to apply TMPO linings and thereby comply with the relevant requirements of EN 545, EN 545, EN 969. This demonstrates innovation according to Annex I, by the use of non-traditional coating systems offering environmental and economic benefits. The TMPO linings meet the criteria expressed in EN 14901, except for those pertinent to fusion bonded epoxy chemistry. The linings are being used in other parts of the world eg Australia and New Zealand and have been incorporated in the recent AWWA C116/A21.16-15 publication. The current status for TMPO linings in EU amounts to a barrier to trade and does not support SME’s involved in the manufacture, lining and application of the material that offers human health benefits, as highlighted in the Annex I and II.
- Standard17 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft17 pagesEnglish languagesale 10% offe-Library read for1 day
This part of the EN 13523 series specifies two methods for determining the numerical evaluation of the adhesion of strippable films which have previously been applied to an organic coating on a metallic substrate.
Samples can be tested irrespective of whether the strippable film has been applied in the laboratory or on the production line.
NOTE Method 1 is preferred for films with adhesive and method 2 for films without adhesive.
- Standard10 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft11 pagesEnglish languagesale 10% offe-Library read for1 day
This part of EN 13523 specifies the panel design and describes the procedure for determining the resistance to outdoor exposure of an organic coating on a metallic substrate.
- Standard17 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft18 pagesEnglish languagesale 10% offe-Library read for1 day
This part of the EN 13523 series specifies the procedure for evaluating the degree of curing by assessing the resistance of a cured organic coating film, applied on a metallic substrate, to a specified organic solvent.
- Standard8 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft8 pagesEnglish languagesale 10% offe-Library read for1 day
This European Standard specifies the agreements to be made between the client, the galvanizer/ sherardizer, the chemical suppliers and the applicators of the pre-treatment and the powder organic coating systems (if they are not one and the same). It also specifies the quality of the galvanized or sherardized articles to which the powder organic coatings are to be applied and for the pre-treatment and powder organic coatings intended for application to the galvanized or sherardized articles.
This standard applies to the application of hot dip galvanized, sherardized and powder organic coatings by controlled industrial processes to articles consisting of or manufactured from steel. The standard applies to hot dip galvanized products, galvanized in accordance with EN ISO 1461 and EN 10240, or products sherardized in accordance with EN ISO 17668, as well as parts of these products manufactured from continuously galvanized sheet and strip galvanized in accordance with EN 10326 or EN 10327 which, after the galvanizing and/or assembly or sherardizing, will have a powder organic coating system applied. This standard also applies to products which have been hot dip galvanized or sherardized according to specific product standards to which powder organic systems are applied.
This standard might also be useful when supplying other organic coating systems (excluding wet paint systems).
- Standard23 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft21 pagesEnglish languagesale 10% offe-Library read for1 day
This part of The EN 13523 series specifies the procedures for determining the resistance to salt spray (fog) of an organic coating on a metallic substrate (coil coating).
For steel, neutral salt spray (fog) is usually used, and for aluminium, acetic acid salt spray (fog).
- Standard12 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft13 pagesEnglish languagesale 10% offe-Library read for1 day
This part of the EN 13523 series specifies the procedure for evaluating the behaviour of an organic coating on a metallic substrate during and after outdoor exposure. Panel design, preparation and the procedure for outdoor exposure are performed in accordance with EN 13523 19.
After washing of the panel, some dirt can remain on the panel. This remaining dirt can influence the accuracy and precision of readings of gloss and colour, performed on exposed panels, although carried out in accordance with the standards. Unlike other precise measurements, the objective of this European Standard is to report on trends in the corrosion and/or paint degradation behaviour of coil coated panels.
- Standard17 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft16 pagesEnglish languagesale 10% offe-Library read for1 day
This part of The EN 13523 series specifies the procedure for determining the resistance to blocking and/or pressure marking of an organic coating on a metallic substrate.
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
This part of EN 13523 specifies the procedure for determining the resistance to blocking and/or pressure marking of an organic coating on a metallic substrate.
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
This part of EN 13523 specifies the procedure for evaluating the behaviour of an organic coating on a metallic substrate during and after outdoor exposure. Panel design, preparation and the procedure for outdoor exposure are performed in accordance with EN 13523 19.
After washing of the panel some dirt can remain on the panel. This remaining dirt can influence the accuracy and precision of readings of gloss and colour, performed on exposed panels, although carried out in accordance with the standards. Unlike other precise measurements, the objective of this European Standard is to report on trends in the corrosion and/or paint degradation behaviour of coil coated panels.
- Standard17 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft16 pagesEnglish languagesale 10% offe-Library read for1 day
This part of EN 13523 specifies the procedures for determining the resistance to salt spray (fog) of an organic coating on a metallic substrate (coil coating).
For steel neutral salt spray (fog) is usually used, and for aluminium acetic acid salt spray (fog).
- Standard12 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft13 pagesEnglish languagesale 10% offe-Library read for1 day
This part of the EN 13523 series specifies a procedure for evaluating the resistance of an organic coating on a metallic substrate (coil coating) in conditions of extreme humidity (acid, alkaline and/or neutral).
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
This part of the EN 13523 series describes the procedure for determining the resistance of an organic coating on a metallic substrate to penetration by scratching with a needle.
It is possible that with some aluminium alloys and thin gauge steel substrate below 0,4 mm, that rather than scratching, the needle will deform the substrate. Under these conditions, this test method is not applicable.
Soft coatings such as poly vinyl chloride (PVC) and structured coatings will not give a precise result due to the soft nature of the coating and/or the potential for the needle to snag.
The method is not applicable to conductive coatings.
- Standard8 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft8 pagesEnglish languagesale 10% offe-Library read for1 day
This part of the EN 13523 series specifies a procedure for the comparative evaluation of resistance to soiling of an organic coating on a metallic substrate (coil coating) in an outdoor exposure environment, particularly the soiling defect known as "Tiger stripes".
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft9 pagesEnglish languagesale 10% offe-Library read for1 day
This part of the EN 13523 series specifies the procedures for determining the dry-film thickness of an organic coating on a metallic substrate (coil coating).
Four appropriate methods are given in this European Standard:
a) magnetic induction;
b) eddy current;
c) micrometer;
d) optical.
The methods are applicable only to products with smooth and flat substrates but the coating itself may be textured. In that case, for methods a) and b) the average of a series of readings will represent an average of the thickness of the organic coating, while method c) will give the maximum thickness and method d) can provide the minimum, maximum and average thickness.
Non-destructive continuous-web methods on measurement of dry-film thickness (see EN ISO 2808) are not dealt with.
- Standard10 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft10 pagesEnglish languagesale 10% offe-Library read for1 day
This part of the EN 13523 series specifies the procedure for determining the difference in the colour of an organic coating on a metallic substrate by visual comparison against a standard using either diffuse natural daylight or artificial daylight in a standard booth.
NOTE Results might differ between natural and artificial daylight.
It might be that two colour specimens will match in daylight but not under another light source. This phenomenon is known as metamerism (see EN 13523 15).
If a metameric match is to be reported in objective terms, spectrophotometric measurements (using CIE Standard Illuminants D65 and A) should be made, in accordance with EN 13523-15.
No statement is made about either the precision or the accuracy of this procedure since the results derived are neither in numerical form nor do they provide a pass/fail evaluation in objective terms. Therefore, this procedure should only be used where the use of colour measuring instruments is not recommendable (evaluation of colour matches, inspection of metallic colours, etc.).
The standardization of such visual comparisons, by light sources, illuminating and viewing geometry and specimen size, provides for improved uniformity of results. This practice is essential for critical colour matching and is highly recommended for colour inspections.
- Standard9 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft9 pagesEnglish languagesale 10% offe-Library read for1 day
This part of the EN 13523 series specifies the basic principles and procedure for determining the resistance of an organic coating on a metallic substrate (coil coating) to a combination of fluorescent UV radiation, and water condensation and temperature under controlled conditions.
Due to varied conditions which occur during natural weathering and the extreme nature of accelerated testing, correlation between the two cannot be expected.
Not all organic coatings will perform on an equal basis but a degree of correlation between the same generic type might be observed.
- Standard8 pagesEnglish languagesale 10% offe-Library read for1 day
- Draft8 pagesEnglish languagesale 10% offe-Library read for1 day