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BSI PD ISO/TS 18950:2021

BSI PD ISO/TS 18950:2021

$142.49

Imaging materials. Photographic prints. Effect of light sources on degradation under museum conditions

Published By Publication Date Number of Pages
BSI 2021 26
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The test method in this document is intended to be used to characterize and compare the degradation of a set of print materials under exposure to particular light sources, eventually including optical filter combinations, under museum environmental conditions. The document covers typical types of indoor light sources commonly found in a museum including indoor daylight, LED, and incandescent light.

This document is applicable to analogue and digital reflection photographic prints.

NOTE

Examples of photographic prints covered by this document are prints made with digital printing technologies such as inkjet, electrophotography, and thermal dye transfer, as well as prints made on silver halide colour paper but not prints made on black and white silver halide paper.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms, definitions, and abbreviated terms
10 4 Use profile
4.1 General
4.2 Stress factors in museum use profile
11 5 Test method
5.1 General
5.2 Sample specimen preparation
5.2.1 Outline
12 5.2.2 Contemporary materials
5.2.3 Historic materials
5.2.4 Selection of suitable test patches on historic materials
13 5.2.5 Reference sample specimens
5.2.6 Backing of the specimens
5.2.7 Dummy sample
5.3 Light exposure
5.3.1 Outline
14 5.3.2 Light intensity tolerances and long-term drift
5.3.3 Specifications for filtered Xenon arc lamp to simulate indoor daylight
15 5.3.4 Specifications for incandescent light
5.3.5 Specifications for LED light
16 5.4 Specifications for additional filters
5.4.1 General
5.4.2 UV Filter specifications for museum lighting
17 6 Measurement
6.1 General
6.2 Measurement conditions
6.3 Calculation of colour difference
6.4 Test procedure
18 7 Evaluation
7.1 General
7.2 Comparing light sources
8 Test report
20 Annex A (informative) Translation of the test results into safe display duration
22 Annex B (informative) Examples of a relative spectral irradiance of white LEDs
23 Bibliography

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BSI PD ISO/TS 18950:2021
$142.49