ISO 5630-6:2009 is part of the ISO 5630 standard, which specifies methods for accelerated aging of paper and paperboard materials. Part 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 – Part 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.

introduction
ISO (International Organization for Standardization) is a global alliance of national standards bodies (ISO member bodies). The development of international standards is usually carried out through ISO technical committees. Each member institution interested in a subject on which a technical committee has been established has the right to be represented on that committee. International governmental and non-governmental organizations liaising with ISO are also involved in this work. ISO works closely with the International Electrotechnical Commission (IEC) on all matters of electrical standardization.

International standards are drafted in accordance with the rules given in Part 2 of the ISO/IEC Directive.

The main task of the technical committee is to develop international standards. The draft international standard adopted by the Technical Committee will be circulated to the member bodies for voting. Publication as an international standard requires approval by at least 75% of member institutions.

ISO 5630-6-2009 “Accelerated Ageing of paper and paperboard – Part 6 Exposure to atmospheric pollution”

Please note that certain elements of this document may be subject to patent rights. ISO is not responsible for identifying any or all such patents.

ISO 5630-6 was prepared by Technical Committee ISO/TC 6 (Paper, 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” :

– Part 1: Dry heat treatment at 105 °C

– Part 3: Moist heat treatment at 80 °C and 65 % relative humidity

– Part 4: Dry heat treatment at 120 or 150 °C

– Part 5: Exposure to temperatures of 100 °C

– Part 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.

introduce
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 – Part 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 Range
This part of 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 – Part 6 Exposure to atmospheric pollution”

2 Normative references
The following reference files are difficult or lacking for the use of this document. For dated references, only the cited version applies. For undated references, a new version of the reference (including any revisions) applies.

ISO 186, Paper and board – sampling to determine average quality

ISO 187, Paper, board and pulp – Standard atmospheres for conditioning and testing and procedures for monitoring sample atmospheres and conditioning

ISO 5626, Paper – Determination of folding durability

ISO 5631-1, paper and board – Determination of colour by diffuse reflectance – Part 1: indoor daylight conditions (C / 2°)