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IImpact of uv irradiance on selected parameters of scots pine impregnated with some commonly used fire- retardants

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Academic year: 2021

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Tab. 1: The gloss changes of specimens before and after each UV irradiance periods.
Tab. 2 shows surface roughness of FR impregnated Scots pine specimens before and after   UV irradiance from 250, 500, and 750 h UV irradiance exposure
Tab. 3 shows L*, a*, and b* values of un-treated (control) Scots pine, and impregnated Scots  pine specimens before and after weathering, and also presents the values of change for all three  color parameters (∆L*, ∆a*, and ∆b*), as well as the total color

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