Standards Development

Scope

This document specifies the terminology and definitions, principles, apparatus, sample preparation, test procedures, evaluation of results, test uncertainty, and test report for the test method of slag resistance of refractory materials.

This document is applicable to the evaluation of slag resistance of refractory materials.

Purpose

There are many ways in which high-temperature industrial kiln lining refractory materials can be damaged, but statistics show that about 60% to 70% of the damage is caused by the erosion of slag. Therefore, improving slag resistance is the most direct way to extend the life of kilns, and it is also an important indicator for judging the quality of refractory materials.

At present, there are significant differences in the test methods and technical parameters for slag resistance specified in current national and regional standards, including China’s GB/T 8931 Test Method for Slag Resistance of Refractory Materials, the United States’ ASTM C874 Standard Test Method for Rotary Slag Testing of Refractory Materials and ASTM C768 Standard Test Method for Drip Slag Testing of Refractory Materials. There is no slag resistance test standard in the ISO standard system.

This project proposes four slag resistance test methods for refractory materials applicable to different scenarios, aiming to scientifically evaluate the anti permeability, erosion, and scouring capabilities of refractory materials by simulating the slag erosion environment in various high-temperature industrial kilns, and provide a unified and reliable testing basis for the research and development, quality control, and industrial application of refractory materials. This has led to the lack of comparability of experimental results from different countries and regions, seriously restricting the coordinated development of the global high-temperature industry.

This project will fill this important technical gap in the international standard system for refractory materials. This document will also provide a unified and reliable technical benchmark for the production, trade, and selection of refractory materials worldwide, reducing technical and trade barriers caused by differences in standards between countries and regions; We will adopt the best experimental parameters and methods verified by extensive global industrial practice, which are more in line with the actual working conditions of high-temperature industrial production, effectively improve the prediction accuracy and reliability of refractory slag resistance test results, and further ensure the safe and longterm operation of high-temperature industrial equipment and devices.

Promoting global industrial chain collaboration, this standard will provide internationally recognized unified testing methods for refractory material production enterprises, end-users, and research institutions worldwide, helping to create a fair competitive environment for the global refractory material industry and achieve resource sharing of scientific and technological innovation achievements.