標(biāo)準(zhǔn)號：BS ISO 18916-2007
中文標(biāo)準(zhǔn)名稱：成像材料.處理過的成像材料.密封材料的攝影活性試驗(yàn)
英文標(biāo)準(zhǔn)名稱：Imaging materials - Processed imaging materials - Photographic activity test for enclosure materials
標(biāo)準(zhǔn)類型：G81
發(fā)布日期：2007/7/31 12:00:00
實(shí)施日期：2007/7/31 12:00:00
中國標(biāo)準(zhǔn)分類號：G81
國際標(biāo)準(zhǔn)分類號：37.040.99
適用范圍：ISO 18916:2007 specifies the procedure for the photographic activity and dye coupler reactivity tests. ISO 18916:2007 is applicable to general photographic enclosure materials such as paper, tissue, cardboard, mat board and plastics. It is also applicable to components of photographic enclosure materials such as adhesives, inks, paints, labels, and tape.ISO 18916:2007 evaluates possible chemical interactions between enclosures with processed silver-gelatin, colour (dye-gelatin), inkjet prints made with dye-based and pigment-based inks, thermal dye diffusion transfer (“dye sub”) prints, digitally printed dye-diffusion-transfer prints, liquid- and dry-toner xerographic prints, liquid-toner electrostatic prints, and diazo images after long-term storage. It does not pertain to harmful physical interactions such as blocking (sticking together), dye bleed, adhesive migration, or plasticizer exudation. It does not pertain to important criteria of enclosures such as their inherent chemical stability, physical integrity, and workmanship. Passing the photographic activity test (PAT) does not indicate that a material is archival. This term has no clear definition and is not used in this standard. Photo-safe, storage enclosures and their components are covered in ISO 18902, which includes passing the criteria of the photographic activity test.If a particular brand of commercially made enclosure materials is found to be safe for long-term storage purposes, there is no assurance that subsequent batches will contain the same ingredients of the same purity, chemical inertness, concentrations, or sound and sturdy construction. For this reason, materials are tested annually or upon each formulation or supplier change. For materials which are manufactured in a variety of colours, such as papers and inks, each colour is evaluated and reported separately.