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81 Glass and ceramics industries
New standards
ISO 15733:2026
Fine ceramics (advanced ceramics, advanced technical ceramics) — Mechanical properties of ceramic composites at ambient temperature in air atmospheric pressure — Determination of tensile properties
Scope:
This document specifies the conditions for determining the tensile properties (including tensile modulus, Poisson’s ratio, strength, strain at maximum force and fracture strain) of ceramic matrix composite materials with continuous fibre reinforcement at room temperature. This document applies to all ceramic matrix composites with a continuous fibre reinforcement, including unidirectional (1D), bi-directional (2D), and multi-directional (xD, with x > 2), reinforcement, loaded along a principal axis of reinforcement.
NOTE In most cases, ceramic matrix composites to be used at high temperature in air are coated with an antioxidation coating.
NOTE In most cases, ceramic matrix composites to be used at high temperature in air are coated with an antioxidation coating.
Base documents:
Replaces:
ISO 15733:2015
Replaced standards
ISO 15733:2015
Fine ceramics (advanced ceramics, advanced technical ceramics) -- Mechanical properties of ceramic composites at ambient temperature in air atmospheric pressure -- Determination of tensile properties
Scope:
ISO 15733:2015 specifies the conditions for determination of tensile properties of ceramic matrix composite materials with continuous fibre reinforcement at room temperatures. This International Standard applies to all ceramic matrix composites with a continuous fibre reinforcement, unidirectional (1D), bi-directional (2D), and tri-directional (xD, with 2 < x ≤ 3), loaded along one principal axis of reinforcement.
NOTE In most cases, ceramic matrix composites to be used at high temperature in air are coated with an antioxidation coating.
NOTE In most cases, ceramic matrix composites to be used at high temperature in air are coated with an antioxidation coating.
Base documents:
Replaced:
ISO 15733:2026
EVS-EN 725-1:2007
Advanced technical ceramics - Methods of test for ceramic powders - Part 1: Determination of impurities in alumina
Scope:
This Part of EN 725 specifies one fusion and one acid dissolution method for the determination of elements of sodium, potassium, iron, silicon, calcium and magnesium present as impurities in alumina using atomic absorption spectroscopy (AAS) or inductively coupled plasma (ICP) spectroscopy. For each element present as impurities, the methods are applicable to the following ranges, calculated as oxides :- Sodium oxide: 20 ppm to 6000 ppm - Potassium oxide: 20 ppm to 100 ppm - Ferric oxide: 20 ppm to 300 ppm - Silica: 50 ppm to 2000 ppm - Calcium oxide: 20 ppm to 700 ppm - Magnesium oxide: 5 ppm to 1000 ppm
Base documents:
EN 725-1:2007
Replaced:
EVS-EN ISO 3169:2025
Drafts
prEN 843-3
Advanced technical ceramics - Mechanical properties of monolithic ceramics at room temperature - Part 3: Determination of subcritical crack growth parameters from constant stressing rate flexural strength tests
Scope:
This document specifies a method for the determination of subcritical crack growth parameters of advanced monolithic technical ceramics in the temperature range 15 °C to 30 °C by measuring the dependence of mean flexural strength on the rate of loading.
The method is based on strength test procedures described in EN 843 1.
The applicability of this method is limited by specific requirements for a low scatter of the initial strength of the test pieces and an upper limit of the stress load rate for the data points considered.
This document is not applicable to test pieces with artificially introduced flaws or cracks.
The method is based on strength test procedures described in EN 843 1.
The applicability of this method is limited by specific requirements for a low scatter of the initial strength of the test pieces and an upper limit of the stress load rate for the data points considered.
This document is not applicable to test pieces with artificially introduced flaws or cracks.
Base documents:
prEN 843-3