7
Feb
2013

UNI EN 12150-1 silicate glass safety glass

Di Gianluca Gaggioli pubblicato giovedì 7 febbraio 2013 in Prodotto pianificazione e progetti |

bridging knowledge to health

This legislation can define tolerances, flatness, edge processing, and 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 made from soda lime silicate hardened is realized through a pane of glass monolithic and must match in case of broke to fragments with no sharp edges and rounded.

In the process of hardening heat can come to create deformations of the plate surface, these signs are defined signs of stapling, these deformations must still fall within the tolerances specified for the realization of silicate glass, soda lime.

Please note that this production process can never generate a totally flat, so there may be to create two kind of curvature:

spiking global

localized buckling

The glass for the measurement dell’incurvamento is placed perpendicularly to the ground and kept in vertical position by holding the longer sides, the deformations must be verified 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 remember that after the work hardening should not be cut, sawn, or subjected to processing the edge so any activities to be undertaken on the plate should be strictly carried out the first of the quenching; also for the realization of the holes must be taken into considerations slabs with a thickness exceeding of 4 mm, the diameter of the hole it is recalled that misses possibly be less than the thickness of the slab

Their position will be affected by:

nominal thickness

sizes of the plate

diameter of the holes

form  of the glass sheet

quantity of holes to be played back on the plate

We speak now of the fragmentation tests 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 steel tool with tip in a point located a13 mm from the edge and the middle of the longest side of the same specimen.

How to espi of sharp tools and how it should be placed the plate (sample) can be found in paragraph 8.3 of the standard.

At the end of the test will be listed in the fragments and tested their measurement, the measurement will be carried out by applying a mask of detection of 50 + / -1 mmal order to see exactly how many frmmenti have generated.

Also characteristics of glass that will be put in question will be:

Optical distortion

Anisotropy

Thermal durability

Mechanical strength

The marking shall indicate that the glass is soda lime silicate must be strictly follows:

name and mark of the manufacturer

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

L'autore: Gianluca Gaggioli

Gianluca Gaggioli: coniugato, con tre figli tutti nati a breve distanza, non si sa come trovi anche il tempo di "dilettarsi" sulle tematiche di qualità e management. Rail Strategist - Rail Fire Fighting - da oltre quindici anni lavora nel ambito ferroviario e medicale nel ruolo di "Assicurazione Qualità e dei Sistemi per la Gestione della Qualità". Competenze specifiche: Gestione della Qualità Secondo le Normative EN ISO 9001, EN ISO 14001, BS 18001, COCS 30.5/DT Trenitalia, Schemes Entities in Charge of Maintenance (ECM), ISO 31000, SGSL, OT24, MOG, EN ISO 13485, IRIS (International Railway Industry Standard), Six Sigma, Kaizen, Auditor Sistemi Qualità Certificato 19011 1a / 2a Parte (Audit interni e fornitori) e Abilitazione Formatore RSPP ASPP, dal 2008 attività di consulenza aziendale in materia di Sicurezza sul Lavoro; DVR, POS, DUVRI, Progettazione piani per la sicurezza (organizzazione e gestione corsi lavoratori); da Giugno 2011 Editor in Chief di Organizzazione Qualità. .

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Questo articolo è stato pubblicato giovedì 7 febbraio 2013 da Gianluca Gaggioli il giovedì, febbraio 7, 2013 alle 22:37 ed appartiene alla categoria Prodotto pianificazione e progetti. Puoi seguire i commenti a questo articolo attraverso i feed RSS 2.0. Lascia un commento!

 

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