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BS EN 17871:2024

BS EN 17871:2024

$102.76

Glass in building. Spectrophotometric characteristics of glass products. Validation procedure for calculation tool

Published By Publication Date Number of Pages
BSI 2024 16
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This standard provides a procedure to validate a calculation tool of spectrophotometric and thermal characteristics of the glass products following EN 410 or EN 673. It provides also the methodology to correctly use measured data in the calculation tool. The following characteristics are included in the scope of this standard: – light transmittance (tv) – light reflectance – both sides (rv, r’v) – solar direct transmittance (te) – solar direct reflectance ā€“ both sides (re, r’e) – total solar energy transmittance (solar factor or g value) (g) – thermal transmittance (U value) in the vertical position The following characteristics are excluded from the scope of this standard: – UV transmittance (tuv) – shading coefficient (SC) – general colour rendering index (Ra) – thermal transmittance (U value) at angles other than vertical

PDF Catalog

PDF Pages PDF Title
2 undefined
7 1 Scope
2 Normative references
3 Terms and definitions
8 4 Validation procedure
4.1 General outline
4.2 Choice of the reference products and data
12 4.3 Reference calculation tool
4.4 Calculation tool to be validated
4.5 Comparison procedure
4.6 Difference criteria
4.7 Calculation tool update validation
13 4.8 Report content

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BS EN 17871:2024
$102.76