IS 14900:2001 is the Indian Standard (BIS) for glass for glazing and paneling - specification. This standard specifies the requirements for various types of flat glass, including float, sheet, patterned, and wired glass, intended for use in building glazing and paneling. It outlines classifications, dimensional tolerances, quality criteria for visual defects, and key performance characteristics.
Specifies requirements for various types of glass used in glazing and paneling, relevant for building envelopes.
Overview
- Status
- Current
- Usage level
- Frequently Used
- Domain
- Architectural — Green Building and Sustainability
- Type
- Specification
Also on InfraLens for IS 14900
BIM-relevant code. See the BIM Hub for ISO 19650, IFC, and LOD/LOIN frameworks used alongside it.
Practical Notes
! This code covers basic flat glass sheets, not processed products. For toughened or laminated glass, refer to IS 2553.
! During quality inspection, pay close attention to the defect tables (e.g., Table 4 for spot faults) as visual acceptance is a major part of this standard.
! Ensure the marking on the glass or its packaging corresponds to the type and quality specified in the project documents, as per Clause 8.
Frequently referenced clauses
glass
International Equivalents
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International Comparison — Coming Soon
We're adding equivalent international standards for this code.
Key Values5
Quick Reference Values
Tolerance on 4mm nominal thickness (float glass)±0.2 mm
Tolerance on length/width (for thickness ≤ 10mm)+2 / -1 mm
Maximum overall bow (float glass)0.3% of edge length
Minimum light transmittance for clear float glass (4mm)87%
Viewing distance for defect inspection (float glass)2 m
Tables & Referenced Sections
Key Tables
Table 1 - Tolerances on Nominal Thickness for Float and Sheet Glass
Table 2 - Tolerances on Length and Width for Cut Sizes
Table 4 - Permissible Spot Faults for Float and Sheet Glass (Quality A)
Table 7 - Recommended Nominal Thickness of Glass for Glazing
Key Clauses
Clause 4 - Classification
Clause 5.2 - Dimensions and Tolerances
Clause 5.4 - Quality
Clause 6 - Performance Requirements
Clause 8 - Marking
Frequently Asked Questions4
What is the standard tolerance on a 5mm thick sheet of float glass?+
The tolerance is ±0.2 mm, as per Table 1.
Does this standard cover tempered (toughened) glass?+
No, this standard is for basic flat glass. Toughened safety glass is covered by IS 2553 (Part 1).
What are the main types of glass classified in this code?+
The code classifies glass into Float Glass, Sheet Glass, and Patterned & Wired Glass (Clause 4).
How are visual defects in glass checked as per this code?+
By visual inspection from a specified distance (e.g., 2m for float glass) and comparing against permissible fault limits in tables like Table 4 and Table 5 (Clause 5.4).
QA/QC Inspection Templates
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QA/QC templates coming soon for this code.