EN ISO 5403-2:2011 PDF

Name: EN ISO 5403-2:2011 — Leather - Determination of water resistance of flexible leather - Part 2: Repeated angular compression (Maeser) (ISO 5403-2:2011)
SKU: EN ISO 5403-2:2011
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Leather - Determination of water resistance of flexible leather - Part 2: Repeated angular compression (Maeser) (ISO 5403-2:2011)

Название (английский):

EN ISO 5403-2:2011

Leather - Determination of water resistance of flexible leather - Part 2: Repeated angular compression (Maeser) (ISO 5403-2:2011)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 12
Дата публикации:: 15 декабря 2011 г.
Издание:: CEN EN 5403 edition 1 version 1
ICS:: 59.140.30

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Описание (английский):

ISO 5403-2:2011 specifies a method for determining the dynamic water resistance of leather by means of repeated angular compression. It is applicable to all flexible leathers but is particularly suitable for leathers intended for footwear applications. It uses a Maeser-type machine and includes an option for electronic detection.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 5403-2:2011 (ISO 5403-2:2011) specifies a laboratory method for determining the dynamic water resistance of flexible leather by repeated angular compression - commonly known as the Maeser test. The method is applicable to all flexible leathers and is particularly suited to footwear leathers. Test specimens are folded into V-shaped clamps on a Maeser-type machine, immersed in water (or electrolyte for electronic detection) and flexed until water penetration occurs.

Key topics and technical requirements

Test principle: Repeated angular (folding-type) compression of a folded leather specimen until first sign of water penetration; results reported as number of flex cycles.

Apparatus: Maeser-type machine with V-shaped clamps set 63 mm ± 3 mm apart; clamp V internal angle 31° ± 1°; internal tip radius 7.5 mm ± 0.5 mm; pivot located 54.0 mm ± 0.5 mm above clamp tip; flexing angle 32° ± 2°; flexing frequency (90 ± 5) cycles/min.

Specimens: Two square specimens, at least 100 mm × 100 mm; fold orientation marked relative to principal material direction; edges may be sealed with rubber solution if wicking is a concern.

Media: Distilled or deionized water (ISO 3696 grade 3) at (20 ± 5) °C; for electronic detection use 1 g/l NaCl electrolyte.

Electronic detection (optional): Uses stainless steel balls (~3 mm) and a high-potential electrode; test is stopped when resistance falls below 50 000 Ω.

Pre-treatments: Optional light abrasion (P180 abrasive, weighted to ~1.0 kg) to simulate wear; alternative pre-flexing using ISO 5402-1 may be appropriate for some leathers.

Measurements: Count cycles to penetration (continuous observation or electronic stop). Water penetration usually appears at the ends of the centre fold.

Applications and users

Footwear manufacturers assessing upper and lining leathers for dynamic water resistance under flexing conditions.

Leather testing laboratories performing standardized quality control, batch acceptance and comparative performance assessments.

R&D teams developing finishes, coatings or leather constructions that improve flexing water resistance.

Procurement and compliance professionals specifying material performance for outdoor, work, or safety footwear.

Related standards and notes

Part of the ISO 5403 series; see ISO 5403-1 (repeated linear compression - penetrometer). Results from Part 1 and Part 2 are not comparable due to different flexing actions.

Normative references used: ISO 2418 (sampling), ISO 2419 (sample preparation/conditioning), ISO 3696 (water for lab use).

Keywords: EN ISO 5403-2:2011, Maeser test, repeated angular compression, leather water resistance test, dynamic water resistance, footwear leather testing.

EN ISO 5403-2:2011 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards and notes

Технические детали

ISO 5403-2:2011

Leather — Determination of water resistance of flexible leather — Part 2: Repeated angular compression (Maese…

SIST EN ISO 3696:1998

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