EN 1402 Standard: Regulation and Testing of Monolithic Refractories by EV Group China

Technical regulation and classification according to the EN 1402 standard

The EN 1402 standard is a fundamental document that establishes unified terminology and classification criteria for monolithic refractory materials. In EV Group China specifications, this regulatory framework is used to ensure quality control of supplied products. It is important to note that the scope of this standard does not apply to semi-finished products, nor to granular or crushed refractories that do not contain binder components.

Sampling and sample preparation methodology

The testing procedure for monolithic refractories requires strict adherence to sampling protocols. The recommendations cover all types of materials classified as monolithic products, ensuring sample representativeness for the analysis of physical and chemical transformations under the influence of operational factors.

Quality control upon delivery

EV Group China applies the methods described in the standard to assess the homogeneity of batches of refractory materials upon receipt. This regulation covers a full range of products: from fine powders and insulating masses to gunning mixes and ramming materials, which guarantees stability of characteristics in industrial applications.

Determination of density and physical-mechanical properties

Standardized methods for determining density are used for the correct assessment of the characteristics of powdered refractories. The preparation of test samples is a key stage, including processes of molding, curing, drying, and subsequent firing, the parameters of which are strictly regulated to ensure measurement accuracy.

Test methods for prepared products

Tests are carried out both for materials in the as-supplied state and for samples that have undergone thermal treatment. The methodology is based on adapting classic tests of shaped refractories for the specific conditions of monolithic masses. This allows EV Group China engineers to provide accurate data on material behavior at high temperatures.