BS ISO 6221:1996 - Photography. Films and papers. Determination of dimensional change
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BS ISO 6221:1996 is a British Standard (BS) that adopts the ISO 6221 international standard. This standard pertains to photography and specifically focuses on films and papers used in photography. The standard outlines a method for determining the dimensional change of these photographic materials.
Photographic films and papers need to maintain their dimensional stability to ensure the quality and accuracy of images, especially when they are subject to various environmental conditions, such as changes in temperature and humidity. Understanding how these materials may change dimensionally over time is crucial for the assessment of their long-term performance and archival properties.
BS ISO 6221:1996 provides a standardized procedure for evaluating these dimensional changes, which can include factors like expansion or contraction of the materials. This information is valuable for manufacturers, photographers, and archivists to ensure the reliability and preservation of photographic materials over time.
