ISO 16276, Parts 1 and 2 Corrosion protection of steel structures by protective paint

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ISO 16276, Parts 1 and 2 Corrosion protection of steel structures by protective paint systems — Assessment of, and acceptance criteria for, the adhesion/cohesion (fracture strength) of a coating

Author: Technical Committee CEN/TC 139, Paints and varnishes | Size: 0.6 MB | Format: PDF | Quality: Original preprint | Publisher: ISO | Year: 2007

ISO 16276-1:2007
This part of ISO 16276 specifies procedures for assessing the fracture strength of a protective paint coating of any thickness on a steel substrate of thickness not less than 10 mm. The procedures given in this part of ISO 16276 are based on methods used with different types of pull-off test equipment. The results obtained using such different types of equipment are not comparable.
NOTE 1 Substrates of less than 10 mm in thickness can be tested if they are strengthened by the sandwich technique (see ISO 4624) or by the nature of the structure (e.g. I-beam or backing-plate). Otherwise, test panels with a thickness of at least 10 mm coated in the same way as the structure can be used, or the method specified ISO 16276-2 can be used.
This part of ISO 16276 is only applicable if a fracture strength value is specified, together with the type of test equipment and the manufacturer of the equipment. Usually, this information is included in contract documentation.
NOTE 2 A value for the fracture strength is only meaningful if the requirements concerning the ambient conditions (see 6.4.2) are met.
This part of ISO 16276 also specifies suitable equipment and defines inspection areas, sampling plans and acceptance/rejection criteria.
It does not give any values of the fracture strength of different protective paint coatings.

ISO 16276-2:2007
This part of ISO 16276 specifies procedures for rating the resistance of coating systems when a cut in the form of a right-angle lattice pattern (cross-cut) or in the form of an X (X-cut) is made into the coating, penetrating through to the substrate.
This part of ISO 16276 is only applicable if the cross-cut or X-cut test method is specified, together with the rating from the appropriate rating scale.
NOTE The characteristics of the coating can make the assessment of the result of a cross-cut or X-cut test difficult.
This part of ISO 16276 also specifies suitable equipment and defines inspection areas, sampling plans and acceptance/rejection criteria.
It does not specify ratings for particular coating systems.

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BS EN ISO 16276-1-2007
BS EN ISO 16276-2-2007

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