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Specification for test methods for transparent materials for aircraft glazing. Determination of visible light transmission. Original standard BS EN 2155-5-1989 (1999) in PDF full version. Additional info + preview on request

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Specification for test methods for transparent materials for aircraft glazing. Determination of optical deviation. Original standard BS EN 2155-7-1997 in PDF full version. Additional info + preview on request

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Specification for test methods for transparent materials for aircraft glazing. Determination of optical distortion. Original standard BS EN 2155-8-1989 (1999) in PDF full version. Additional info + preview on request

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Specification for test methods for transparent materials for aircraft glazing - Determination of haze. Original standard BS EN 2155-9-1989 in PDF full version. Additional info + preview on request

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Specification for alloys for dental amalgam. Original standard BS EN 21559-1992 (1999) ISO 1559-1986 in PDF full version. Additional info + preview on request

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Specification for dental inlay casting wax. Original standard BS EN 21561-1992 (2000) ISO 1561-1975 in PDF full version. Additional info + preview on request

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