Safety Sign Standards Around the World vs India: How IS 9457, ISO 7010, ANSI Z535, and BS 5499 Compare
One World, Multiple Safety Sign Standards
If you have ever worked with MNC clients, you have probably encountered confusion: the American auditor wants ANSI Z535 signs, the European auditor wants ISO 7010, the Indian inspector wants IS 9457, and you are wondering whether they are all the same thing. Short answer: they are similar but not identical. Here is how they compare.
The Four Major Standards
IS 9457 (India)
Published by: Bureau of Indian Standards (BIS)
Based on: ISO 3864 / ISO 7010 with Indian adaptations
Format: Geometric shapes + safety colours + pictograms + optional supplementary text
Languages: Can include Hindi, regional languages, English
Status: The governing standard for safety signs in India. Compliance is referenced by the Factories Act, OSH Code, NBC, and industry-specific regulations.
ISO 7010 (International)
Published by: International Organization for Standardization
Format: Registered pictograms with specific design specifications
Scope: Purely graphical — defines the pictogram, shape, and colour. Does not specify text.
Relationship to IS 9457: IS 9457 adopts most ISO 7010 pictograms. An ISO 7010-compliant sign is substantially IS 9457-compliant.
ANSI Z535 (United States)
Published by: American National Standards Institute
Format: Signal word panel (DANGER / WARNING / CAUTION / NOTICE) + pictogram + message panel
Key difference: ANSI signs are text-heavy. They use verbal descriptions and specific signal words rather than relying primarily on pictograms.
Colours:
| Signal Word | Colour | Meaning |
|---|---|---|
| DANGER | Red | Imminent hazard — will cause death or serious injury |
| WARNING | Orange | Hazard — could cause death or serious injury |
| CAUTION | Yellow | Hazard — could cause minor or moderate injury |
| NOTICE | Blue | Non-hazard information (property damage, policy) |
BS 5499 (United Kingdom)
Published by: British Standards Institution
Format: Very similar to ISO 3864 / ISO 7010 — the UK adopted the ISO system early
Relationship to IS 9457: Since both are ISO-derived, BS 5499 signs look very similar to IS 9457 signs
Comparison Table
| Feature | IS 9457 | ISO 7010 | ANSI Z535 | BS 5499 |
|---|---|---|---|---|
| Primary communication | Pictogram | Pictogram | Text + pictogram | Pictogram |
| Warning shape | Yellow triangle | Yellow triangle | Orange panel | Yellow triangle |
| Mandatory shape | Blue circle | Blue circle | N/A (text-based) | Blue circle |
| Prohibition shape | Red circle + bar | Red circle + bar | Red circle + bar | Red circle + bar |
| Emergency shape | Green rectangle | Green rectangle | Green (varies) | Green rectangle |
| Text emphasis | Supplementary | None (pictogram only) | Primary | Supplementary |
Which Standard Should Indian Factories Follow?
For Indian legal compliance: IS 9457. This is the only standard referenced by Indian law. An ANSI-format sign may communicate the message but does not meet Indian regulatory requirements.
For MNC audit compliance: Most international auditors accept IS 9457/ISO 7010-format signs, because ISO 7010 is the global reference standard. ANSI-format signs are typically accepted only in US-owned facilities.
Our recommendation: Use IS 9457 as your base standard (which inherently aligns with ISO 7010). This satisfies both Indian law and international audit expectations. If a US customer specifically requires ANSI-format signs, we can produce those as supplementary signs — but they should not replace IS 9457 signs for legal compliance.
All our signs are designed to IS 9457 / ISO 7010 standards. Browse our standards-compliant range or discuss specific standard requirements with our team.