BS EN 15681-1:2016
$102.76
Glass in building. Basic alumino silicate glass products – Definitions and general physical and mechanical properties
| Published By | Publication Date | Number of Pages |
| BSI | 2016 | 22 |
This Part of this European Standard specifies and classifies basic alumino silicate glass products, indicates their chemical composition, their main physical and mechanical characteristics, their dimensional and their minimum quality requirements (in respect of optical and visual faults).
This European Standard applies to basic alumino silicate glasses supplied in stock sizes, supplied sizes or in cut sizes for final end use.
This European Standard does not apply to final cut sizes having a dimension less than 100 mm or a surface area less than 0,05 m2.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Contents Page |
| 5 | European foreword |
| 6 | 1 Scope 2 Normative references 3 Terms and definitions |
| 7 | Figure 1 — Relationship between length, width and direction of draw |
| 8 | 4 Chemical composition 4.1 General Table 1 — Magnitude of the proportions by mass of the constituents of alumino silicate glass 4.2 Tint 5 Physical and mechanical characteristics 5.1 General characteristics |
| 9 | Table 2 — General characteristic values of basic alumino silicate glass 5.2 Characteristic bending strength 5.3 Designation of clear alumino silicate glass 5.3.1 General |
| 10 | 5.3.2 Clear transparent alumino silicate glass Table 3 — Minimum light transmittance values for designating a transparent glass product as clear 5.3.3 Clear translucent alumino silicate glass |
| 11 | Table 4 — Minimum light transmittance values for designating a translucent glass product as clear 5.4 Stability of physical and chemical characteristics 6 Dimensional requirements 6.1 Manufacturing dimensions 6.1.1 Stock sizes 6.1.2 Supplied and final cut sizes 6.2 Thickness and thickness tolerances |
| 12 | Table 5 — Nominal thicknesses and thickness tolerances 6.3 Length, width and squareness Table 6 — Tolerances, t, on the nominal dimensions length and width Table 7 — Limits for the difference between diagonals 7 Quality requirements 7.1 General |
| 13 | 7.2 Methods of observation and measurement 7.2.1 Optical faults 7.2.1.1 Method of observation of optical faults on float glass 7.2.1.2 Method of measurement of optical faults on float glass Figure 2 — Plan view showing set up of zebra test |
| 14 | Figure 3 — Zones for the measurement of optical distortion 7.2.1.3 Method of observation of optical faults on drawn sheet and rolled glass 7.2.1.4 Method of measurement of optical faults on drawn sheet and rolled glass 7.2.2 Visual faults (spot faults, linear/extended faults), all types of basic alumino silicate glass 7.2.2.1 Method of observation of visual faults (spot faults, linear/extended faults) 7.2.2.2 Method of measurement of spot faults |
| 15 | 7.2.2.3 Method of measurement of linear/extended faults 7.3 Acceptance levels 7.3.1 Optical faults 7.3.1.1 Float glass Table 8 — Critical viewing angle 7.3.1.2 Drawn sheet and rolled glass 7.3.2 Visual faults (spot faults, linear/extended faults), all types of basic alumino silicate glass Table 9 — Summary of acceptance levels |
| 16 | 7.4 Edge defects for final cut sizes 7.4.1 Entrant and emergent faults Figure 4 — Entrant and emergent faults – surface view Figure 5 — Entrant faults – edge view 7.4.2 Bevel Figure 6 — Bevel – edge view 7.4.3 Limitations on edge defects |
| 17 | Table 10 — Limitations on edge defects 8 Designation |
| 18 | Annex A (informative) Complementary information related to REACH |
| 19 | Bibliography |
