ISO 1288-2:2016 PDF

Name: ISO 1288-2:2016 — Glass in building — Determination of the bending strength of glass — Part 2: Coaxial double-ring test on flat specimens with large test surface areas
SKU: ISO 1288-2:2016
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Glass in building — Determination of the bending strength of glass — Part 2: Coaxial double-ring test on flat specimens with large test surface areas

Название (английский):

ISO 1288-2:2016

Glass in building — Determination of the bending strength of glass — Part 2: Coaxial double-ring test on flat specimens with large test surface areas

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 14
Дата публикации:: 16 февраля 2016 г.
Издание:: ISO IS 1288 edition 1 version 1
ICS:: 81.040.20

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Описание (английский):

ISO 1288-2:2016 specifies a method for determining the bending strength of glass for use in buildings, excluding the effects of the edges. The limitations of this part of ISO 1288 are described in ISO 1288‑1.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 1288-2:2016 - Glass in building: Coaxial double-ring test on flat specimens with large test surface areas specifies a standardized laboratory method to determine the bending strength of flat glass used in buildings, while excluding edge effects. Part 2 of ISO 1288 describes the coaxial double‑ring loading arrangement (large test area variant), the required apparatus, specimen preparation, test procedure and evaluation needed to produce reproducible, comparable bending-strength data for the central surface of glass panes.

Key topics and technical requirements

Test principle: a square flat specimen rests on a supporting ring and is centrally loaded by a concentric loading ring while the area inside the loading ring is subjected to a controlled surface gas pressure. This produces a predominantly radial tensile stress field in the central region where breakage is expected to originate.

Measured outcome: the bending strength (or equivalent bending strength for patterned/uneven-thickness glass) is calculated from the piston force at break and the specimen thickness, taking into account device geometry and material constants.

Apparatus & components:

Testing machine with stepless loading, controlled stressing rate and load measurement accuracy (±2.0%).
Loading and supporting rings supplied to the standard dimensions (e.g., loading ring and supporting ring radii and effective surface area are specified).
Rubber profiles on rings (typically 3 mm thick, hardness ~40 ± 10 IRHD per ISO 48) and bearing surface radius ~5 mm.
Surface pressure regulator capable of tracking the prescribed nominal p(F) relationship.

Measurement accuracy: width to nearest 1 mm and thickness to nearest 0.01 mm.

Specimen handling: square specimens with prescribed dimensions and conditioning; see ISO 1288-1 for fundamental limitations and edge considerations.

Test procedure elements: specimen positioning, loading rate control, thickness measurement, residual stress assessment and required test reporting.

Practical applications and who uses this standard

Glass manufacturers - product qualification, process control and material comparison.

Independent testing laboratories - standardized test reports for clients and certification bodies.

Façade engineers and structural designers - material property data for strength-based glass design and safety assessments.

Architects and specifiers - selecting glass types that meet performance requirements.

Regulators and certification bodies - harmonized method for compliance verification and performance claims.

ISO 1288-2 is particularly valuable when the focus is on the central bending performance of large flat glass panes where edge damage or edge conditions are intentionally excluded from the strength assessment.

Related standards

ISO 1288-1 - Fundamentals of testing glass (limitations and general principles).

ISO 48 - Rubber hardness (used for ring profile specifications).

Other parts of ISO 1288 cover different specimen sizes and loading geometries (four-point bending, channel-shaped glass, small-area double-ring test).

Keywords: ISO 1288-2:2016, bending strength of glass, coaxial double-ring test, glass testing standard, large test surface areas, glass in building.

ISO 1288-2:2016 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Practical applications and who uses this standard

Related standards

Технические детали

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ISO 1288-1:2016

Glass in building — Determination of the bending strength of glass — Part 1: Fundamentals of testing glass