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OBA Free Cards (Weathering)
James Heal’s OBA-free Specimen Cards (135x45mm) are designed for precise use in light and weathering fastness testing. These cards are free of Optical Brightening Agents (OBA), making them ideal for mounting test specimens or Blue Wool standards, which assess material performance under various light and weather conditions.
Description
James Heal’s OBA-free Specimen Cards (135x45mm) are designed for precise use in light and weathering fastness testing. These cards are free of Optical Brightening Agents (OBA), making them ideal for mounting test specimens or Blue Wool standards, which assess material performance under various light and weather conditions.