SIST EN ISO 29664:2017 PDF

Name: SIST EN ISO 29664:2017 — Plastics - Artificial weathering including acidic deposition (ISO 29664:2010)
SKU: SIST EN ISO 29664:2017
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Plastics - Artificial weathering including acidic deposition (ISO 29664:2010)

Название (английский):

SIST EN ISO 29664:2017

Plastics - Artificial weathering including acidic deposition (ISO 29664:2010)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 24
Дата публикации:: 7 марта 2017 г.
Издание:: ISO 29664:2010
ICS:: 83.080.01

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Описание (английский):

ISO 29664:2010 describes artificial weathering tests intended to evaluate plastics for use in heavily polluted outdoor environments. Results from ISO 29664:2010 cannot be used to predict the service life of these plastics. ISO 29664:2010 describes two different exposure methods. Use of the methods depends on the form of the plastic product being evaluated. It does not cover the influence of special chemicals like agrochemicals.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 29664:2017 (ISO 29664:2010) - "Plastics - Artificial weathering including acidic deposition" defines laboratory methods to reproduce the combined effects of UV, heat, humidity, wetting and acidic deposition on plastics intended for use in heavily polluted outdoor environments. The standard provides two exposure methods tailored to product form and degradation mechanism. It explicitly states that test results cannot be used to predict real-world service life.

Key topics and technical requirements

Two exposure methods

Method A - for products where surface degradation dominates. Uses a strong acid spray (pH 1.5) applied once per day; includes two procedures to simulate very humid (tropical/subtropical) and more moderate climates.
Method B - for products that require deep penetration of acidic deposition (e.g., geotextiles). Uses a weaker acid spray (pH 3.5) applied over extended periods integrated into the rain phase.

Acid solution preparation

pH 1.5 solution (reference): mix per 10 L deionized water - 10.6 g H2SO4, 3.18 g HNO3, 1.80 g HCl (adjust for reagent concentration). Dilute 1:10 for pH 2.5 or 1:100 for pH 3.5; verify pH within ±0.3 before test.

Apparatus & light sources

Test chambers and procedures follow ISO 4892-1 (general), ISO 4892-2 (xenon-arc) and ISO 4892-3 (fluorescent UV).
Allowed irradiance guidance (examples from the standard):
- Fluorescent UV Type 1A: 0.76 W·m−2·nm−1 at 340 nm or 45 W·m−2 (290–400 nm).
- Xenon arc (daylight filters): 0.51 W·m−2·nm−1 at 340 nm or 60 W·m−2 (300–400 nm).
Chambers, holders and mounting devices must be acid- and UV-resistant; radiometers and black standard thermometers per ISO 4892-1.

Test controls & reporting

Control of irradiance, temperature, humidity, black standard temperature (BST), and water spray required.
Use of stable reference materials is recommended to monitor repeatability and consistency.

Scope limits

Not intended to evaluate effects of special chemicals such as agrochemicals.
Results are for comparative/qualification purposes, not lifetime prediction.

Applications and who uses it

Engineers and materials scientists evaluating plastics, coatings, geotextiles and outdoor polymer components expected to face acid rain and heavy industrial pollution.

R&D teams and QA labs performing artificial weathering tests, product validation, comparative durability screening and formulation optimization.

Manufacturers and specifiers wanting standardized, repeatable tests for regulatory compliance, procurement specifications, or accelerated performance comparison in polluted-environment scenarios.

Related standards

ISO 4892-1, ISO 4892-2, ISO 4892-3 - laboratory light-source exposure methods

ISO 291 - conditioning and testing atmospheres

ISO 4582 - determination of colour and property changes after exposure

Keywords: EN ISO 29664:2017, ISO 29664, artificial weathering, acidic deposition, plastics testing, xenon arc, fluorescent UV, acid spray pH 1.5, pH 3.5, laboratory weathering test.

SIST EN ISO 29664:2017 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and who uses it

Related standards

Технические детали

ISO 29664:2010

Plastics — Artificial weathering including acidic deposition

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