ISO 5630-6:2009 ISO の一部です 5630 標準, which specifies methods for accelerated aging of paper and paperboard materials. 一部 6 of the standard, titled “Exposure to Atmospheric Pollution,” describes a process that exposes paper and cardboard samples to the effects of atmospheric pollution to simulate the effects of long-term exposure to environmental pollutants.

The purpose of this standard is to assess the durability of paper and paperboard materials in the case of atmospheric pollution. This is important for applications that require long-term stability, such as file storage.

The standard Outlines a test method that involves exposing paper and cardboard samples to a controlled atmosphere of sulfur dioxide (SO2) gas at a certain concentration and temperature. The specimen is exposed to the gas for a specified period of time. The standard specifies the test conditions and equipment required to perform the test.

After exposure, the samples are evaluated for various properties such as color, 輝度, and intensity. The results of the tests can be used to compare the durability of different paper and cardboard materials and to predict their long-term stability when exposed to atmospheric pollution.

ISO 5630-6-2009 “紙および板紙の老化の促進 – 一部 6 大気汚染への曝露”

結論は, ISO 5630-6:2009 provides a standardized method for testing the effects of atmospheric pollution on paper and paperboard materials, which is important for applications such as archival storage, 印刷と梱包.

導入
ISO (国際標準化機構) 国家標準化団体の世界的な同盟です (ISO会員団体). 国際規格の開発は通常、ISO 技術委員会を通じて行われます。. 技術委員会が設立された主題に関心を持つ各加盟機関は、その委員会に代表される権利を有する。. ISO と連携する国際政府および非政府組織もこの作業に関与しています。. ISO は国際電気標準会議と緊密に連携しています。 (IEC) 電気の標準化に関するあらゆる問題について.

国際規格は、第 1 部に記載されている規則に従って草案されます。 2 ISO/IEC 指令の.

技術委員会の主な任務は国際標準を開発することです. 技術委員会によって採択された国際規格草案は、投票のために加盟団体に配布されます。. 国際標準として発行するには、少なくとも承認が必要です 75% 加盟機関の.

ISO 5630-6-2009 “紙および板紙の老化の促進 – 一部 6 大気汚染への曝露”

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ISO 5630-6 ISO/TC 技術委員会によって作成されました 6 (紙, ボードとパルプ), SC 2 Sub-committee (Test methods and quality specifications for paper and board).

ISO 5630 consists of the following parts under the general heading “紙と板紙 – Accelerated Ageing” :

– 一部 1: Dry heat treatment at 105 ℃

– 一部 3: Moist heat treatment at 80 °C and 65 % 相対湿度

– 一部 4: Dry heat treatment at 120 または 150 ℃

– 一部 5: Exposure to temperatures of 100 ℃

– 一部 6: 大気汚染への曝露 (nitrogen dioxide)

Note Part 2: The wet heat treatment at 90°C and 25% relative humidity was eliminated in 1992.

導入
Paper or cardboard exposed to a harsh environment, such as some type of radiation, high temperatures or chemical contaminants, in a matter of hours can provide information about the natural changes that may occur in the material over several years.

ISO 5630-6-2009 “紙および板紙の老化の促進 – 一部 6 大気汚染への曝露”

This test method for accelerating aging by exposing paper to high concentrations of nitrogen dioxide is based on a method developed by ASTM [1] following an extensive research program. In the program, 15 printing and writing papers were tested, representing multiple paper types (acidic and alkaline, lignin-containing and lignin-free, and papers with and without alkaline reserves (such as calcium carbonate). This method proved to be the most relevant for judging the effect of atmospheric pollution gases on the long-term mechanical strength and optical stability of such papers. In order to fully understand the stability of paper against long-term natural aging effects, a combination of accelerated aging test methods is used.

1 範囲
ISO のこの部分 5630 specifies a method to accelerate the ageing of printing and writing paper by exposure to nitrogen dioxide gas and to assess the effects on mechanical and optical properties to predict the stability of long-term natural ageing that occurs as a result of exposure to polluted air. It is suitable for all cellulose-based printing and writing paper, including coated paper and filler paper.

ISO 5630-6-2009 “紙および板紙の老化の促進 – 一部 6 大気汚染への曝露”

2 規範的参照
The following reference files are difficult or lacking for the use of this document. 日付の付いた参照については, 引用されたバージョンのみが適用されます. 日付のない参考文献については, リファレンスの新しいバージョン (改訂も含めて) 当てはまる.

ISO 186, 紙と板紙 – 平均品質を決定するためのサンプリング

ISO 187, 紙, ボードとパルプ – コンディショニングとテストの標準雰囲気、およびサンプル雰囲気とコンディショニングを監視する手順

ISO 5626, 紙 – 折り曲げ耐久性の測定

ISO 5631-1, 紙と板 – Determination of colour by diffuse reflectance – 一部 1: indoor daylight conditions (C / 2°)