WebThe Blue Wool standards have been adopted since as ISO International Organisation for Standardisation) Recommendation R 105 and British Standards BS1006 (1961), so that sample cards are readily available. Each card contains 8 specially prepared blue dyeings on wool. They are WebThe blue wool card allows you to monitor the net exposure to light given to objects on display and to alert conservators to adjust intensity of illumination. These blue scale cards are manufactured in the UK …

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Web450-Women's Loop-Yarns Wool Oversized Coat, Double Breasted Wool Trapeze Coat, Simplicity, Cape Coat, Poncho Coat, Deep Blue A-line Coat. (1.8k) $217.66 vintage minimalist navy wool maxi Coat size small, blue Oversized winter … WebDuring the light fastness test, one half of the blue wool standard reference card is covered to prevent exposure to UV light. The exposed leather is judged on contrast compared to the non exposed leather and then compared with a similar difference in contrast of the blue wool standards. This is a subjective analysis of the light fastness. state department background notes

Color Fastness: The Ultimate Guide - Testex

WebIf the instrument is to determine the wet photosensitive textiles, no need to expose the blue wool standard. Instead, use the gray sample card to make a comparative assessment. Features of Water-cooled Light & Weather Fastness Tester TF422 Specifications Weight Power Dimensions Standards WebWhat are the different applications of the AATCC Standard Reference Detergents with or without Optical Brightener? How can I verify the UPF of a fabric or garment? What is AATCC’s UV Calibration program? What happened to L4 Blue Wool? WebISO Blue Wools. The ISO blue wools are each dyed with a different dye giving rise to a light fastness scale which is an approximate geometric progression, ranging from 1 to 8. The full range of ISO blue references is … state department authorization act