ISO 4892-2:2013

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ISO4892 國際標(biāo)準以“塑料—暴露于實驗室光源的方法”為總標(biāo)題，由以下部分組成：

第1部分：通則；

第2部分：氙弧燈；

第3部分：熒光紫外燈；

第4部分：開放式碳弧燈，紫外光老化試驗箱ISO 4892 的本部分的附錄A僅作參考之用。

ISO 4892-2:2013指定了樣品暴露在氙燈光照環(huán)境下，模擬戶外綜合老化效果（包括溫度、濕度/潮濕環(huán)境下）的測試方法，以再現(xiàn)產(chǎn)品在實際使用過程中暴露在光照環(huán)境或者經(jīng)過窗玻璃過濾的光照環(huán)境產(chǎn)生的老化效果。

英文摘要

ISO 4892-2:2013 specifies methods for exposing specimens to xenon-arc light in the presence of moisture to reproduce the weathering effects (temperature, humidity and/or wetting) that occur when materials are exposed in actual end-use environments to daylight or to daylight filtered through window glass.

ISO 4892-2 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 6, Ageing, chemical and environmental resistance.

This third edition cancels and replaces the second edition (ISO 4892-2:2006), which has been technically revised. It also cancels and replaces the Amendment ISO 4892-2:2006/Amd.1:2009.

ISO 4892 consists of the following parts, under the general title Plastics — Methods of exposure to laboratory light sources:

— Part 1: General guidance

— Part 2: Xenon-arc lamps

— Part 3: Fluorescent UV lamps

— Part 4: Open-flame carbon-arc lamps

1 Scope

This part of ISO 4892 specifies methods for exposing specimens to xenon-arc light in the presence of moisture to reproduce the weathering effects (temperature, humidity and/or wetting) that occur when materials are exposed in actual end-use environments to daylight or to daylight filtered through window glass.

Specimen preparation and evaluation of the results are covered in other International Standards for specific materials.

General guidance is given in ISO 4892-1.

NOTE Xenon-arc exposures of paints and varnishes are described in ISO 11341.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

ISO 4582, Plastics — Determination of changes in colour and variations in properties after exposure to daylight under glass, natural weathering or laboratory light sources

ISO 4892-1, Plastics — Methods of exposure to laboratory light sources — Part 1: General guidance

ISO 9370, Plastics — Instrumental determination of radiant exposure in weathering tests — General guidance and basic test method