What is BS EN ISO 21068-1:2021?

BS EN ISO 21068-1:2021 is a technical standard that provides guidelines for the determination of silicon content in industrial refractory products. Refractories are materials designed to withstand high temperatures and harsh conditions, commonly used in industries such as steelmaking, glass manufacturing, and cement production. The silicon content in refractory products plays a crucial role in their performance and durability.

Importance of Silicon Content in Refractory Products

Silicon is a key element in refractory materials due to its unique properties. It has a high melting point and excellent thermal shock resistance, making it ideal for use in environments with extreme temperatures. Silicon also enhances the strength and stability of refractory products, allowing them to withstand chemical corrosion, mechanical stress, and erosion caused by molten materials.

Methods of Determining Silicon Content

The BS EN ISO 21068-1:2021 standard outlines two main methods for determining the silicon content in refractory products – the Gravimetric Method and the Spectrophotometric Method.

The Gravimetric Method involves converting the silicon present in the refractory sample into silica (SiO2) through various chemical reactions. The resulting silica is then weighed to determine the silicon content based on its stoichiometry.

The Spectrophotometric Method utilizes the absorption characteristics of silicon compounds in ultraviolet and visible light range. By measuring the absorbance of a prepared solution containing the dissolved refractory material, the silicon content can be quantified using calibration curves or established equations.

Benefits of Using BS EN ISO 21068-1:2021

Adhering to the guidelines outlined in BS EN ISO 21068-1:2021 ensures accurate and reliable determination of silicon content in refractory products. This enables manufacturers to maintain consistent product quality, optimize production processes, and meet industry standards.

By knowing the exact silicon content, refractory manufacturers can formulate their recipes more precisely, ensuring the desired properties and performance of the final product. Additionally, quality control measures can be implemented based on the determined silicon content to prevent faulty or substandard refractories from reaching the market.

In summary, BS EN ISO 21068-1:2021 provides a standardized approach for determining silicon content in refractory products. Its implementation promotes quality assurance, product consistency, and overall efficiency in the refractory industry.