Description Blue Wool Scales are an essential tool for assessing lightfastness and monitoring the potential fading of sensitive materials in museum and archival collections. Commonly used in preventive conservation, these scales help heritage professionals determine how much light exposure is safe for textiles, paper, and other light-sensitive objects. Key Features: Reliable Lightfastness Reference – Comprises a series of dyed wool strips, each with a known degree of fading resistance, from Blue Wool 1 (very low) to 8 (very high). Easy Comparison – Place alongside objects on display or in storage to visually monitor fading over time or to assess light exposure in controlled tests. Widely Used Standard – Trusted by conservators, curators, and heritage professionals across Ireland and internationally as part of light damage risk assessments. Compact & Reusable – Convenient to use in display cases, light testing set-ups, or during environmental surveys. An invaluable resource for anyone responsible for the care and long-term preservation of historic collections, Blue Wool Scales are a practical aid in managing light levels and exhibition durations.
