ИСО 16276-2-2007 “Evaluation and acceptance criteria for adhesion/cohesion (fracture strength) of protective coating systems to corrosion protective coatings on steel structures – Парт 2: cross-cut and X-cut tests”
увод
ИСО (Међународна организација за стандардизацију) је глобални савез националних тела за стандардизацију (Тела чланица ИСО). Развој међународних стандарда се обично спроводи преко ИСО техничких комитета. Свака институција чланица заинтересована за предмет за који је основан технички комитет има право да буде заступљена у тој комисији. Међународне владине и невладине организације које су у вези са ИСО такође су укључене у овај посао. ИСО блиско сарађује са Међународном електротехничком комисијом (ИЕЦ) о свим питањима електричне стандардизације.
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ИСО 16276-2-2007 “Evaluation and acceptance criteria for adhesion/cohesion (fracture strength) of protective coating systems to corrosion protective coatings on steel structures – Парт 2: cross-cut and X-cut tests”
ИСО 16276-2 was developed by the European Committee for Standardization (CEN) Technical Committee CEN/TC 139, Боје и лакови, in cooperation with the Technical Committee ISO/TC 35, Боје и лакови, Subcommittee SC 14, Coating Systems for the protection of Steel structures.
ИСО 16276 састоји се од следећих делова, with the general title “Corrosion protection of steel structures by protective coating systems – Evaluation and acceptance criteria for coating adhesion/cohesion (разбијање снага) :
– Парт 1: Pull-out test
– Парт 2: Crosscutting test and X-cutting test
увести
The main purpose of this part of ISO 16276 is to complement the ISO 12944 series in the field evaluation and acceptance criteria for coating adhesion/cohesion.
Note that this part of ISO 16276 is designed to evaluate transverse and X-cut tests for paint coatings on steel structures in the field. ИСО 2409 prescribes crosscut testing and ASTM D 3359 prescribes a generic X-cut test without a note explaining the results or accepting or rejecting the criteria.
ИСО 16276-2-2007 “Evaluation and acceptance criteria for adhesion/cohesion (fracture strength) of protective coating systems to corrosion protective coatings on steel structures – Парт 2: cross-cut and X-cut tests”
Breaking strength testing is often destructive and therefore requires maintenance work, the extent of which depends on the specifications and durability required for the protective paint coating.
The objective of this part of ISO 16276 is to minimize variability and achieve uniformity in practice when evaluating the break strength of bedliner coatings, and to establish acceptance/rejection criteria for such coatings. The method uses test equipment based on the principles of crosscutting and X-cutting.
1 Домет
Овај део ИСО-а 16276 specifies that when cutting in the form of a rectangular lattice pattern (crosscut) or X (X-cut), the resistance rating program of the coating system is permeated into the coating and onto the substrate.
Овај део ИСО-а 16276 applies only to ratings that specify a crosscut or X-cut test method and the corresponding rating level.
Note that the characteristics of the coating can make it difficult to evaluate crosscut or X-cut test results.
ИСО 16276-2-2007 “Evaluation and acceptance criteria for adhesion/cohesion (fracture strength) of protective coating systems to corrosion protective coatings on steel structures – Парт 2: cross-cut and X-cut tests”
Овај део ИСО-а 16276 also specifies suitable equipment and defines inspection areas, sampling plans and acceptance/rejection criteria.
It does not specify a rating for a particular coating system.
2 Normative references
Следеће референтне датотеке су потребне за примену овог документа. За датиране референце, примењује се само наведена верзија. For undated references, a new version of the reference (укључујући све ревизије) примењује.
ИСО 2409-2006, paints and varnishes. Cross cutting test
ИСО 12944-7, Боје и лакови – Corrosion protection of steel structures through protective coating systems – Парт 7: Execution and supervision of paint work
ИСО 12944-8, Боје и лакови – Corrosion protection of steel structures by protective coating systems – Парт 8: Development of new work and maintenance specifications
ИСО 19840, Боје и лакови – Corrosion protection of steel structures by protective coating systems – Standard for measurement and acceptance of dry film thickness on rough surfaces
АСТМ Д 3359-02, Standard Test Method for Measuring Adhesion by Tape testing
ИСО 16276-2-2007 “Evaluation and acceptance criteria for adhesion/cohesion (fracture strength) of protective coating systems to corrosion protective coatings on steel structures – Парт 2: cross-cut and X-cut tests”
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1 Breaking strength
More than the force needed for the relay
– Between coatings or between coatings and substrate (адхезија) and/or
– Inside the coat (cohesive)
Белешка 1: Овај део ИСО-а 16276 does not define a method for determining breaking strength (see ISO 16276-1).
3.2 Адхезија
Adhesion at the interface between a solid surface and another material caused by molecular forces
Белешка 1: Adhesion should not be confused with cohesion.
[Извор: ИСО 4618:2006]
ИСО 16276-2-2007 “Evaluation and acceptance criteria for adhesion/cohesion (fracture strength) of protective coating systems to corrosion protective coatings on steel structures – Парт 2: cross-cut and X-cut tests”
3.3 Cohesion
The force that binds the film together into a single entity
Белешка 1: Cohesion should not be confused with adhesion.
[Извор: ИСО 4618:2006]
3.4 Coat
A continuous layer of coating material produced from a single application
[Извор: ИСО 4618:2006]
3.5 Clothes
A continuous layer formed by a single or multiple coating of a coating material onto a substrate
[Извор: ИСО 4618:2006]
3.6 Checking Areas
The specified area where the sampling plan has been applied can be the entire structure or a selected part of the structure
ИСО 16276-2-2007 “Evaluation and acceptance criteria for adhesion/cohesion (fracture strength) of protective coating systems to corrosion protective coatings on steel structures – Парт 2: cross-cut and X-cut tests”
Јаван је само одељак са стандардним информацијама. Да бисте видели цео садржај, морате купити стандард преко званичних канала.