国产一级a毛一级a看免费视频,久久久久久国产一级AV片,免费一级做a爰片久久毛片潮,国产精品女人精品久久久天天,99久久久无码国产精品免费了

| 注冊| 產品展廳| 收藏該商鋪

行業產品

當前位置:
廣東宏展科技有限公司>>技術文章>>ISO 4665-2016測試標準

產品分類品牌分類

更多分類

ISO 4665-2016測試標準

閱讀:2525        發布時間:2018-8-2

本頁面標準信息均來源于網絡收集,或由參與標準制定的供應商提供,只作為參考使用,為確保測試結果的準確性、節省您的時間,如需ISO 4665-2016標準詳細信息或ISO 4665-2016具體測試方法,歡迎與我們技術人員聯系或給我們留言,我們將為您相關的技術支持。

 

ISO 4665-2016標準介紹

ISO 4665-2016是關于硫化或熱塑性橡膠-耐候性測試方法。 本標準規定了以熒光紫外燈和冷凝裝置模擬天然氣候的太陽紫外光、溫度和冷凝水等老化因素的一種人工氣候老化試驗方法。

本標準適用于硫化橡膠在紫外光照和冷凝作用交替條件下暴露的耐候性試驗。*新標準ISO 4665-2016發布于2016年1月。

 

ISO 4665-2016英文介紹

ISO 4665:2016 specifies methods for the exposure of vulcanized or thermoplastic rubbers to natural or artificial weathering and methods for the determination of changes in colour, appearance, and physical properties resulting from exposure.

 

1 Scope

This International Standard specifies methods for the exposure of vulcanized or thermoplastic rubbers to natural or artificial weathering and methods for the determination of changes in colour, appearance, and physical properties resulting from exposure.

 

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 105-A02, Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour

ISO 877-1:2009, Plastics — Methods of exposure to solar radiation — Part 1: General guidance

ISO 877-2:2009, Plastics — Methods of exposure to solar radiation — Part 2: Direct weathering and exposure behind window glass

ISO 877-3:2009, Plastics — Methods of exposure to solar radiation — Part 3: Intensified weathering using concentrated solar radiation

ISO 1431-1, Rubber, vulcanized or thermoplastic — Resistance to ozone cracking — Part 1: Static and dynamic strain testing

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

ISO 4892-2, Plastics — Methods of exposure to laboratory light sources — Part 2: Xenon-arc lamps

ISO 4892-3, Plastics — Methods of exposure to laboratory light sources — Part 3: Fluorescent UV lamps

ISO 4892-4, Plastics — Methods of exposure to laboratory light sources — Part 4: Open-flame carbon-arc lamps

ISO 18314-1, Analytical colorimetry — Part 1: Practical colour measurement

ISO 23529, Rubber — General procedures for preparing and conditioning test pieces for physical test methods

 

3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 877 and ISO 4892 and the following apply.

3.1control

material exposed alongside the test material for comparison

Note 1 to entry: The control, for example, may be a material of similar or related composition to the test material or a material having a known response to the exposure conditions.

3.2file test piece

portion of the material to be tested which is stored under conditions in which it is stable and is used for comparison between the exposed and the original state

3.3masked area

portion of the exposed test piece which is protected from light exposure by masking

3.4weathering reference material

reference material whose weathering degradation properties are well documented and repeatable when exposed to identical conditions

3.5exposure stage

interval of exposure between determinations of change in properties, expressed as time or radiant exposure

 

▼ISO 4665-2016第三方檢測機構

以上標準信息來自互聯網搜索整理,如需了解完整的ISO 4665-2016的信息或ISO 4665-2016標準解讀,歡迎詳詢。

收藏該商鋪

登錄 后再收藏

提示

您的留言已提交成功!我們將在第一時間回復您~
二維碼 意見反饋
在線留言
主站蜘蛛池模板: 宝山区| 龙口市| 武清区| 韩城市| 讷河市| 日土县| 卓尼县| 潼南县| 鄱阳县| 和政县| 崇信县| 都兰县| 怀安县| 镇巴县| 五指山市| 监利县| 池州市| 景东| 黄平县| 城市| 黄山市| 新源县| 澎湖县| 宣恩县| 固安县| 荣昌县| 芦溪县| 资中县| 城市| 京山县| 弥渡县| 尚志市| 夏河县| 嘉黎县| 塔河县| 华阴市| 新竹县| 青岛市| 南靖县| 巴马| 全南县|