EN ISO 17132:2007 PDF

Name: EN ISO 17132:2007 — Paints and varnishes - T-bend test (ISO 17132:2007)
SKU: EN ISO 17132:2007
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Paints and varnishes - T-bend test (ISO 17132:2007)

Название (английский):

EN ISO 17132:2007

Paints and varnishes - T-bend test (ISO 17132:2007)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 16
Дата публикации:: 1 октября 2007 г.
Издание:: CEN EN 17132 edition 1 version 1
ICS:: 87.040

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Описание (английский):

ISO 17132:2007 describes a method of evaluating the flexibility and adhesion of an organic coating on a metallic substrate by observing the cracking or loss of adhesion when a coated test panel is bent. The method can be used to confirm whether paints, varnishes or related products meet a given test requirement in a pass/fail test, or to determine the minimum bending diameter at which cracking does not occur.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Paints and varnishes - T-bend test (EN ISO 17132:2007) - Overview

EN ISO 17132:2007 specifies the T-bend test method for evaluating the flexibility and adhesion of organic coatings on metallic substrates. The procedure detects cracking or loss of adhesion when a coated test panel is bent, and can be used as a pass/fail adhesion test or to determine the minimum bending diameter (expressed as a T‑bend rating) at which no cracking or flaking occurs.

Key topics and technical requirements

Scope: Assesses coating flexibility and adhesion on metal by bending coated panels through 180° and inspecting for cracks or detachment.

Test principle: Panels are bent with the coated surface on the outside; bending radii are defined by mandrels or spacer panels. After bending, panels are examined visually (×5–×10 magnification) and with a tape pull-off test for adhesion loss.

T‑bend rating: Reported as the number of panel thicknesses or spacers (e.g., 1T, 2T) equivalent to the narrowest mandrel/spacer around which no failure occurs.

Apparatus: Vice with flat jaws, mandrels or uncoated spacer panels, magnifying glass, and adhesive tape with strength 6–10 N/25 mm (per IEC 60454‑2).

Test panels & preparation: Use rectangular steel panels (unless agreed otherwise). Prepare panels and measure dry film thickness following ISO 1514 and ISO 2808 procedures.

Conditioning and test conditions: Condition coated panels at (23 ± 2) °C and (50 ± 5) % RH for at least 16 hours; perform the test under the same environmental conditions unless otherwise agreed.

Procedure variants: Bending around a mandrel, using spacer panels, or repeated folding (folding method) - selected by agreement between parties.

Reporting & precision: Results expressed as T rating; precision information (repeatability and reproducibility) is included in the standard.

Practical applications and users

Who uses it: Paint and varnish manufacturers, coating formulators, quality control and testing laboratories, specification writers, OEMs (automotive, appliance, metal fabrication), and coil coaters.

Why use it:

Verify compliance with product specifications or contract requirements (pass/fail).
Determine the minimum bending diameter a coated metal part can tolerate without cracking (useful for forming, folding, and coil coating operations).
Evaluate coating performance for protective and decorative applications where substrate deformation occurs.

Related standards

ISO 1513, ISO 1514, ISO 2808, ISO 15528 (sample/panel preparation and film thickness)

IEC 60454‑2 (tape test method reference)

Other coating deformation tests: ISO 1519, ISO 1520, ISO 6272, ISO 6860

Comparable regional methods: ASTM D4145, EN 13523‑7, JIS G3312

Keywords: EN ISO 17132, T-bend test, paints and varnishes, coating flexibility, adhesion test, metallic substrate, mandrel, spacer panels, film thickness.

EN ISO 17132:2007 PDF

Abstract

Похожие стандарты

Paints and varnishes - T-bend test (EN ISO 17132:2007) - Overview

Key topics and technical requirements

Practical applications and users

Related standards

Технические детали

ISO 17132:2007

Paints and varnishes — T-bend test

IEC 60454-2:2007

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