In India, 30ml sintered glass crucibles in porosity grades G-2, G-3, and G-4 are widely available from major laboratory glassware suppliers and online marketplaces. These crucibles, typically of the Gooch type, are made from borosilicate glass 3.3 for high thermal and chemical resistance.

Key Specifications

• Simson Chemtech: Offers G-4 porosity crucibles with 30mm disc diameters, engineered for pharma and QC applications.
• Abron Exports: Supplies all grades (G-1 to G-4) with a typical minimum order quantity of 10 pieces.
• Labochem: Provides Malik Scientific brand crucibles in both 15ml and 30ml sizes.
• Gharpure Scientific Supplies: A Mumbai-based seller offering competitive local pricing.