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granite quality testing standards in natural stone industry

granite quality testing standards in natural stone industry

With a sharp increase in granite demand at local, national, and international level, the factor of quality testing has become a prime concern for both buyers and sellers. There are a few granite quality testing processes at the national and international level that assay the quality of a granite product ready to be sold in the competitive market. Know what quality standards are popular in the natural stone industry.

Globally, there are about 300 granite varieties and out of which 200 varieties are supplied by India. These varieties are famous for their unique color, texture, and structure. The granite processing industry has developed over the years, so are the standards of testing.

Water absorption, gravity, thickness, density, strength, flexure, rupture, abrasion, and friction resistance are the prime factors considered for successful testing of granite stone products (finished slabs and tiles). Physical properties of granite, like porosity, permeability, thermal stability, coefficient of expansion, variegation, and hardness, matter the most in declaring granite a unique material. With this content, all granite enthusiasts will know more about various certified agencies, standards, and aspects associated with the concept of granite quality testing.

There are several prestigious agencies, like CDOS, ASTM, and BSI that publish and set natural stone testing standards. For example, Centre for Development of Stones (CDOS) is an autonomous organization by the Rajasthan government and (RIICO) Rajasthan State Industrial Development & Investment Corpn. Ltd. It has been initiated in order to develop, support, and promote the Dimensional Stone Sector. Among various organizations related to setting of natural stone testing standards, American Society for Testing and Materialshas global recognition. It is an international organization for setting, developing, and publish different technical standards for a wide assortment of materials, including natural stones. Following are some of the important standards for assaying the value of natural stone products, including granite. These are vital for granite quality testing. These include:

Testing of granite quality in India is done in order to ensure the level and performance of natural stone finished and unfinished products. In India, there are several popular Indian standard codes set by the Bureau of Indian Standards (BIS), a governmental organization for setting natural building stones. Following is a list of the popular Indian Standard codes that all stone engineers follow for standardization in stonework industry in India. It includes:

A lab test report for granite stone testing shows the quality level of stone and its practical usefulness for various building construction purposes. Like ASTM and IS codes, there are also some EN testing codes that are popular in Europe. These testing codes are drafted and maintained by ETSI (European Telecommunications Standards Institute), CEN (European Committee for Standardization), and CENELEC (European Committee for Electrotechnical Standardization). Below-given is a sample test report for viscon white granite stone prepared by an ISO-certified organization in India.

Granites India an ISO-certified granite manufacturing, supplying, and exporting company offering a range of granite slabs and tiles, passed through granite testing procedures. The 20-year-old granite company offers high-quality stone products at competitive prices.

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