Testing · Certification · Datasheets
Refractory Quality & Certifications
Every refractory shipment from firebrickssource.com is tested against published Indian Standard (IS), ASTM and EN methods. Bulk density, apparent porosity, cold crushing strength, RUL and PLC are recorded against your specification — and the test report ships with every batch.
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Testing Standards & Quality Control
Test methods we run on every grade — IS 1528, ASTM C133, ASTM C20, EN 993 — and what each measurement tells you about brick performance.
02
Technical Datasheets
Downloadable PDF datasheets covering every product category — properties, certified test values, dimensional tolerances.
03
Certifications
ISO quality system, export-compliance registrations, and BIS conformity references for our published refractory grades.
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Product Comparison Tool
Pick two or three grades to compare side-by-side — Al₂O₃ %, density, strength, peak temperature, applications.
Tests we run
Standard refractory test methods
| Property | Test method | What it tells you |
|---|---|---|
| Apparent porosity | IS 1528-8 / ASTM C20 | Resistance to slag & gas penetration |
| Bulk density | IS 1528-12 / ASTM C20 | Mass per unit volume — thermal storage |
| Cold crushing strength (CCS) | IS 1528-4 / ASTM C133 | Mechanical strength at room temperature |
| Refractoriness under load (RUL) | IS 1528-2 / EN 993-8 | Behaviour under combined heat + load |
| Permanent linear change (PLC) | IS 1528-6 / ASTM C113 | Dimensional stability after firing |
| Pyrometric cone equivalent (PCE) | IS 1528-1 / ASTM C24 | Refractoriness — softening reference |
| Thermal conductivity | ASTM C201 / EN 993-15 | Heat-transfer rate; critical for IFB |