25
October
2011

UNI EN 12150-1 Glass of soda lime silicate safety glass thermally

By Gianluca Gaggioli published Tuesday, October 25, 2011 in Breaking News Breaking News , Product Planning and Projects |

Above The Glass Ceiling
Creative Commons License photo credit: Ian Sane

This legislation vupòe define tolerances, flatness, machining of the edges, and the characteristics which must be paid in case of fragmentation.

This legislation has the other riferimentile following standards:

EN 572-1 Glass in building - Basic soda lime silicate glass products:

Definitions and general physical and mechanical properties

EN 572-2 Glass in building - Basic soda lime silicate glass products: Float

glass

EN 572-4 Glass in building - Basic soda lime silicate glass products: Drawn

sheet glass

EN 572-5 Glass in building - Basic soda lime silicate glass products:

Patterned glass

EN 673 Glass in building - Determination of thermal transmittance

(U value) - Calculation Method

EN 1096-1 Glass in building - Coated glass - Definitions and classification

PREN 12600 Glass in building - Pendulum test - Impact test method for flat glass

and performance requirements.

The safety glass silicate sodo- calcium tempered is achieved through a sheet of monolithic glass and must match in case of rottoura to fragments with no sharp edges and rounded.

In the process of thermal curing may come to cause deformation of the surface of the slab, these signs are defined staple marks, these deformations must still be within the tolerances specified for the realization of silicate glass, soda lime.

Remember that this production process will never generate a totally flat, so there may come to create two tipolgi of curvature:

bowing global

curvature localized

The glass for the measurement of the bending is placed perpendicular to the ground and kept in vertical position by holding the longer sides, the deformation must be verified lumgo the edges of the glass and along its diagonal, said measurement must be carried out at room temperature.

For any work on the glass of soda lime silicate remembers that after the work hardening should not be cut, sawn, or subject to the working board so any activities to be undertaken on the plate must be strictly carried out first of quenching; also for the realization of the holes must be taken into considerations slabs with a thickness exceeding AI4 mm, the hole diameter is recalled that misses possibly be less than the thickness of the slab

Their position will be affected by:

nominal thickness of the sheet

magnitudes of the plate

diameter of the holes

sleep of the glass sheet

quantity of holes to be played on the plate

We speak now of the evidence of fragmentation of the plates the size of the samples to be tested must be: (please refer to the norm) and each specimen shall be struck with a tool steel with tip in a point located to13 mm from the edge and the middle of the longer side of the same specimen.

How to espi of sharp tools and how it should be placed the plate (audition) is contained in Section 8.3 of the standard.

At the end of the test will be enumerated fragments and verified their measurement measurement will be done by applying a mask detection of 50 +/- 1 MMAL order to verify exactly how many frmmenti will be generated.

Also features glass that will be placed in question will be:

Optical distortion

Anisotropy

Thermal Durability

Mechanical strength

The marking that must have the soda lime silicate glass must be strictly the following:

name and mark of the manufacturer

number of European reference standard (in this case, EN 12150)

The author: Gianluca Gaggioli

Gianluca Gaggioli: married, with three children, all born at a short distance, you know how you find the time to "dabble" on issues of quality and management. For over ten years working in the railway sector and medical in the role of "Quality Assurance and Quality Management Systems". Specific skills: Quality Management According to Standards EN ISO 9001, SGSL, OT24, MOG, EN ISO 13485, IRIS (International Railway Industry Standard), COCS 30.5 / DT Trenitalia, Six Sigma, Kaizen, Quality Systems Auditor Certificate 19011 1st / 2nd Part (Internal audits and suppliers) and Enable Trainer RSPP ASPP, since 2008 business consultant in the field of Occupational Safety; DVR, POS, DUVRI, Designing security plans (organization and management courses workers); from June 2011 Editor in Chief of Organization Quality from March 2012 New Head Quality Management System in Aditech. .

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This entry was posted on Tuesday, October 25, 2011 by Gianluca Gaggioli on Tuesday, October 25, 2011 at 06:00 and belongs to the category Breaking News Breaking News , Product planning and projects . You can follow any responses to this entry through the feed RSS 2.0 . Leave a comment !

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