Marble / Granite Testing

Sigma Test & Research Centre is a trusted Granite Testing Lab offering precise analysis of granite’s physical and chemical properties. Our advanced facilities ensure accurate testing for strength, durability, density, and composition. We help manufacturers, exporters, and builders maintain top-quality standards and meet international specifications for reliable construction and export performance.

Water Absorption Test:

The amount of water that refractory can absorb is measured by the water absorption test. The results of water absorption tests are used for quality assurance.
Test Method: IS: 1124-1974, IS: 13030-1991, ASTM C 97-2009

Hardness Test:

This test helps in determining the hardness of rock. Because granite is a rock composed of multiple minerals, only crystals of specific minerals within the granite would be tested for hardness.
Test Method: IS: 13630 (P-13) 2006

Modulus Rapture Test:

The modulus of rupture (MOR) is the maximum surface stress in a bent beam at the instance of failure. One might expect this to be exactly the same as the strength measured in tension, but it is always larger because the volume subjected to this maximum stress is small, and the probability of a large flaw lying in the highly stressed region is also small.
Test Method: IS: ASTM C 99-2009, IS: 1578 (P-5)1993

Dimension Testing:

This test is done to check the dimensional stability of the rock.
Test Method: IS: 1130-1969, IS: 3316-1974, IS: 14223 (P-1) 1995, IS: 3622-1977, ASTM C 625, 616, 629, 503

Thermal Shock Test:

Thermal shock is the name given to cracking as a result of rapid temperature change. Glass and ceramic objects are particularly vulnerable to this form of failure, due to their low toughness, low thermal conductivity, and high thermal expansion coefficients. However, they are used in many high-temperature applications due to their high melting point.
Test Method: IS: 13630 (P-5)2006, EN-104, ISO 10545 (P-4)

PVC Flooring Tile Test:

PVC Flooring provides dust-free, noise-absorbing, resilient, non-porous, decorative surface. It shall consist of a thoroughly blended composition of thermoplastic binder, filler, and pigments.
Test Method: IS: 3461

Frost Resistance Test:

Ceramic tile frost resistance is defined as the ability of a ceramic tile to withstand freeze/thaw conditions with minimal effect. The frost resistance of any ceramic tile is dependent on the tile’s porosity and water absorption levels. Frost damage can occur when the variety of ceramic tile absorbs moisture through its pores, causing the water to freeze internally when the temperature drops. Since water expands when it freezes, tension is then exerted inside the body of the ceramic tile. This internal pressure may become high enough to cause cracks in the ceramic tile.
Test Method: IS: 13630 (P-10), BS EN 12371

Chemical Resistance Test:

This test is done to determine the ability of the grade of granite used by a1-safe tech to resist chemical attacks.
Test Method:

Breaking Strength Test:

Rocks are considerably weaker in tension than in compression. Characterizing tensile strength of rocks thus is of great importance in many engineering and geophysical applications. The tensile strength can be defined as the failure of stress.
Test Method: IS: 13630 (P-6)2006, IS: 4457-2007

Granite Testing Lab – Sigma Test & Research Centre

Sigma Test & Research Centre is a leading Granite Testing Lab committed to delivering reliable, accurate, and standardized testing services. Our state-of-the-art laboratory is equipped with advanced instruments to evaluate granite for compressive strength, density, porosity, water absorption, hardness, and chemical composition. These tests ensure that granite meets the required quality and safety standards for construction, architectural, and export purposes.

Our team of experienced professionals follows national and international testing standards (ASTM, IS, EN) to provide precise results. At Sigma Test & Research Centre, we aim to support industries in maintaining product excellence, sustainability, and long-term performance.

Tags : Granite Testing as per ASTM standards | Granite Testing for European Compliance | Granite Testing Lab in Bengaluru