ISO 5630-6-2009 “Accelerated Ageing of paper and paperboard – חֵלֶק 6 Exposure to atmospheric pollution”
ISO 5630-6:2009 is part of the ISO 5630 תֶקֶן, which specifies methods for accelerated aging of paper and paperboard materials. חֵלֶק 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, brightness, 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 “Accelerated Ageing of paper and paperboard – חֵלֶק 6 Exposure to atmospheric pollution”
In conclusion, 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, printing and packaging.
מבוא
ISO (הארגון הבינלאומי לתקינה) היא ברית גלובלית של גופי תקינה לאומיים (גופים חברי ISO). פיתוח תקנים בינלאומיים מתבצע בדרך כלל באמצעות ועדות טכניות של ISO. כל מוסד חבר המעוניין בנושא שעליו הוקמה ועדה טכנית זכאי להיות מיוצג באותה ועדה. ארגונים ממשלתיים ולא-ממשלתיים בינלאומיים המקיימים קשר עם ISO מעורבים גם הם בעבודה זו. ISO עובד בשיתוף פעולה הדוק עם הנציבות האלקטרוטכנית הבינלאומית (חברת החשמל) בכל הקשור לתקינה חשמלית.
תקנים בינלאומיים מנוסחים בהתאם לכללים המפורטים בחלק 2 של הוראת ISO/IEC.
המשימה העיקרית של הוועדה הטכנית היא לפתח תקנים בינלאומיים. טיוטת התקן הבינלאומי שאומצה על ידי הוועדה הטכנית תופץ לגופים החברים להצבעה. פרסום כתקן בינלאומי דורש אישור של לפחות 75% של מוסדות חברים.
ISO 5630-6-2009 “Accelerated Ageing of paper and paperboard – חֵלֶק 6 Exposure to atmospheric pollution”
שים לב שרכיבים מסוימים במסמך זה עשויים להיות כפופים לזכויות פטנט. ISO אינה אחראית לזיהוי פטנטים כאלה או כולם.
ISO 5630-6 was prepared by Technical Committee ISO/TC 6 (עיתון, board and pulp), SC 2 Sub-committee (Test methods and quality specifications for paper and board).
ISO 5630 consists of the following parts under the general heading “Paper and board – Accelerated Ageing” :
– חֵלֶק 1: Dry heat treatment at 105 מעלות צלזיוס
– חֵלֶק 3: Moist heat treatment at 80 °C and 65 % לחות יחסית
– חֵלֶק 4: Dry heat treatment at 120 אוֹ 150 מעלות צלזיוס
– חֵלֶק 5: Exposure to temperatures of 100 מעלות צלזיוס
– חֵלֶק 6: Exposure to atmospheric pollution (nitrogen dioxide)
Note Part 2: The wet heat treatment at 90°C and 25% relative humidity was eliminated in 1992.
הצג
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 “Accelerated Ageing of paper and paperboard – חֵלֶק 6 Exposure to atmospheric pollution”
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 טווח
החלק הזה של ISO 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 “Accelerated Ageing of paper and paperboard – חֵלֶק 6 Exposure to atmospheric pollution”
2 אזכור נורמטיבי
קבצי ההפניה הבאים קשים או חסרים לשימוש במסמך זה. להפניות מתוארכות, רק הגרסה המצוטטת חלה. להפניות ללא תאריך, גרסה חדשה של ההפניה (כולל כל תיקונים) חל.
ISO 186, Paper and board – sampling to determine average quality
ISO 187, עיתון, board and pulp – Standard atmospheres for conditioning and testing and procedures for monitoring sample atmospheres and conditioning
ISO 5626, עיתון – Determination of folding durability
ISO 5631-1, paper and board – Determination of colour by diffuse reflectance – חֵלֶק 1: indoor daylight conditions (ג / 2°)