SIST EN ISO 877-2:2025 PDF

Name: SIST EN ISO 877-2:2025 — Plastics - Methods of exposure to solar radiation - Part 2: Direct weathering and exposure behind window glass (ISO 877-2:2025)
SKU: SIST EN ISO 877-2:2025
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Plastics - Methods of exposure to solar radiation - Part 2: Direct weathering and exposure behind window glass (ISO 877-2:2025)

Название (английский):

SIST EN ISO 877-2:2025

Plastics - Methods of exposure to solar radiation - Part 2: Direct weathering and exposure behind window glass (ISO 877-2:2025)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 14
Дата публикации:: 24 сентября 2025 г.
Издание:: ISO 877‑2:2025
ICS:: 83.080.01

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Описание (английский):

This document specifies a method for the direct exposure of plastics to solar radiation (method A) and a method for the exposure of plastics to glass-filtered solar radiation (exposure behind window glass) (method B). The purpose is to assess property changes produced after specified stages of such exposures. General guidance concerning the scope of the ISO 877 series[1] is given in ISO 877-1.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

EN ISO 877-2:2025 - Plastics - Methods of exposure to solar radiation - Part 2: Direct weathering and exposure behind window glass (ISO 877-2:2025) defines standardized outdoor exposure procedures for plastics. It specifies two test methods: Method A (direct exposure to solar radiation) and Method B (exposure behind window glass, i.e., glass‑filtered solar radiation). The standard’s purpose is to provide a repeatable way to assess property changes in plastics after specified exposure stages under natural solar radiation.

Key topics and technical requirements

Scope and principle: Describes the intent to evaluate changes in physical and appearance properties after natural solar exposure; general guidance is referenced to ISO 877-1:2025.

Test methods: Method A (direct weathering) and Method B (exposure behind window glass) for assessing effects of unfiltered and glass‑filtered solar radiation respectively.

Apparatus and fixtures:

Racks capable of the required inclination; specimens must be at least 0.5 m from the ground or obstructions.
Racks/holders must allow free shrinkage, expansion or warping with minimal stress.
Area beneath/in the vicinity of racks should have low reflectance and representative ground cover (e.g., gravel in deserts, low‑cut grass in temperate areas).
Dedicated test fixtures for Methods A and B and apparatus for measuring climatic factors and solar radiant exposure.

Specimens and mounting: Guidance on specimen preparation, secure mounting, and avoidance of shadows from nearby objects.

Exposure stages and measurement:

Definition of exposure stages and procedures for recording solar radiant exposure and climatic observations.
Procedures for determining and expressing changes in properties and for preparing a comprehensive test report.

Documentation: Normative references (notably ISO 877-1) and bibliographic references are included.

Practical applications

Verifying long‑term performance of plastics used outdoors (façade components, glazing seals, automotive exterior parts, polymeric coatings).

Comparing formulations, fillers, stabilizers and additives for UV/weather resistance.

Supporting material selection, quality control, product development and conformity evidence for construction, automotive, consumer products and glazing industries.

Assessing the difference between direct solar exposure and the effects of glass‑filtered solar radiation for interior‑facing or window‑protected materials.

Related standards

ISO 877-1:2025 - Plastics - Methods of exposure to solar radiation - Part 1: General guidance (normative reference)

Other parts of the ISO 877 series for additional exposure methods and guidance

Keywords: EN ISO 877-2:2025, plastics weathering, solar radiation exposure, direct weathering, exposure behind window glass, outdoor aging tests, solar radiant exposure.

SIST EN ISO 877-2:2025 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications

Who should use this standard

Related standards

Технические детали

ISO 877-2:2025

Plastics — Methods of exposure to solar radiation — Part 2: Direct weathering and exposure behind window glass

ISO 877-1:2025

Plastics — Methods of exposure to solar radiation — Part 1: General guidance

SIST EN ISO 877-1:2025

Plastics - Methods of exposure to solar radiation - Part 1: General guidance (ISO 877-1:2025)