ISO 16276-2:2007 PDF

Corrosion protection of steel structures by protective paint systems — Assessment of, and acceptance criteria for, the adhesion/cohesion (fracture strength) of a coating — Part 2: Cross-cut testing and X-cut testing

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Title (English):

ISO 16276-2:2007

Document status:: Withdrawn
Format:: Electronic (PDF)
Number of pages:: 9
Publication date:: May 18, 2007
Edition:: ISO IS 16276 edition 1 version 1
ICS:: 87.020

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Description (English):

ISO 16276-2:2007 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. It also specifies suitable equipment and defines inspection areas, sampling plans and acceptance/rejection criteria. It does not specify ratings for particular coating systems.

Technical details

Technical committee: ISO/TC 35/SC 14 - Protective paint systems for steel structures
SKU: ISO 16276-2:2007

Abstract

Overview

ISO 16276-2:2007 specifies field procedures for assessing the adhesion/cohesion (fracture strength) of protective paint coatings on steel structures using cross‑cut testing and X‑cut (St. Andrew’s cross) testing. The standard defines suitable equipment, inspection areas, sampling plans and acceptance/rejection criteria, and provides guidance for test panels and site conditioning. It supplements the ISO 12944 corrosion‑protection series but does not prescribe ratings for specific coating systems.

Key topics and requirements

Test methods: Two destructive qualitative methods are covered:
- Cross‑cut test (ISO 2409 referenced): matrix of right‑angle cuts through the coating to form squares; assessment on a 0–5 damage scale. Suitable for film thicknesses up to 250 µm.
- X‑cut test (based on ASTM D3359, Method A): two cuts form an X; adhesive tape is applied and removed, then rated (Annex A provides rating classification).
Equipment and materials: multiple‑blade or single‑blade cutters, templates, and transparent pressure‑sensitive adhesive tape in accordance with referenced standards.
Sampling and inspection: inspection areas and sampling plans are defined to ensure representative field assessment of coated structures.
Site conditions and conditioning:
- Tests are destructive; repair is required after testing.
- Coatings must be dried/cured per manufacturer recommendations. If none are supplied, a minimum drying period of 10 days at substrate temperature >15 °C and relative humidity

Related standards

Mentioned in the description and other ISO standards

Overview

Key topics and requirements

Test methods: Two destructive qualitative methods are covered:
- Cross‑cut test (ISO 2409 referenced): matrix of right‑angle cuts through the coating to form squares; assessment on a 0–5 damage scale. Suitable for film thicknesses up to 250 µm.
- X‑cut test (based on ASTM D3359, Method A): two cuts form an X; adhesive tape is applied and removed, then rated (Annex A provides rating classification).
Equipment and materials: multiple‑blade or single‑blade cutters, templates, and transparent pressure‑sensitive adhesive tape in accordance with referenced standards.
Sampling and inspection: inspection areas and sampling plans are defined to ensure representative field assessment of coated structures.
Site conditions and conditioning:
- Tests are destructive; repair is required after testing.
- Coatings must be dried/cured per manufacturer recommendations. If none are supplied, a minimum drying period of 10 days at substrate temperature >15 °C and relative humidity

ISO 16276-2:2007 PDF

Technical details

Abstract

Overview

Key topics and requirements

Related standards

Abstract

Overview

Key topics and requirements

Related standards

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