Similar International Standards
ASTM C503 / C503M - 15(2020)ASTM International (US)
HighCurrent
Standard Specification for Marble Dimension Stone
Specifies general physical requirements and test methods for marble used in construction.
EN 12058:2015CEN (European Committee for Standardization)
HighCurrent
Natural stone products - Slabs and tiles for floors and stairs - Requirements
Specifies requirements for marble slabs and tiles specifically for flooring and stair applications.
EN 1469:2015CEN (European Committee for Standardization)
MediumCurrent
Natural stone products - Slabs for cladding - Requirements
Covers marble slabs for a specific application (cladding), overlapping with the slab portion of IS 1135.
Key Differences
≠IS 1135 classifies marble based on soundness and geological flaws (Groups A-D), whereas ASTM C503 classifies it by mineralogical composition (Calcite, Dolomite, Serpentine, Travertine), which dictates different physical property requirements for each type.
≠The minimum strength requirements in IS 1135 are significantly more stringent than in ASTM C503. For example, IS 1135 requires a minimum Modulus of Rupture of 15 MPa, while ASTM C503 requires a minimum of 6.9 MPa (1000 psi).
≠The test method and criteria for wear/abrasion resistance differ. IS 1135 specifies maximum loss in thickness (e.g., <1.0mm) using an abrasion test, while ASTM C503 requires a minimum abrasion resistance index (Ha ≥ 10) based on ASTM C1353, a different test methodology.
≠European standards like EN 12058 often use a 'declaration of performance' model and provide classes for tolerances (e.g., T1, T2 for thickness), allowing flexibility based on application. IS 1135 is more prescriptive, providing a single mandatory tolerance limit.
Key Similarities
≈All standards serve the same fundamental purpose: to define the minimum quality, dimensions, and physical properties for marble slabs and tiles to ensure they are suitable for use in building construction.
≈Core physical properties such as Water Absorption, Strength (Modulus of Rupture/Flexural Strength), and Compressive Strength are specified and tested across all equivalent standards, indicating a global consensus on key performance indicators.
≈All standards include provisions for visual inspection, requiring the material to be generally sound and free from cracks, seams, or other defects that would impair its structural integrity or specified aesthetic appearance.
≈The standards all specify dimensional tolerances for length, width, and thickness to ensure uniformity and proper installation, although the specific values and classification systems may differ.