General Warning Sign

General Warning Sign – ISO 7010 Warning Symbol HS0011

This General Warning sign flags a hazard that does not fit a single dedicated pictogram, giving crew and visitors an unmistakable “take care here” cue at the point of risk. It follows the internationally recognised ISO 7010 warning pictogram format, using the standard photoluminescent yellow triangle with a black exclamation mark so the general warning reads instantly to crew, contractors and visiting surveyors regardless of first language.

As SKU HS0011 in the Hazard Signs range, it is built for continuous marine exposure and suits workshop areas, temporary hazard zones, maintenance sites and any location where the specific risk changes too often for a dedicated pictogram to apply.

The pictogram shows a bold black exclamation mark inside the black-bordered warning triangle on a fluorescent yellow ground, the universally understood shorthand for “caution” used across shipping, industry and everyday signage worldwide.

Because a general warning sign carries no specific hazard graphic, it is usually paired with a supplementary text plate or verbal briefing describing the exact risk, and its role is to draw attention to that additional information rather than to communicate a single fixed hazard on its own. The photoluminescent base keeps the general warning visible for a period after lighting fails, useful for temporary hazard zones set up during maintenance or cargo work that may run into low-light hours.

Why General Warning Marking Matters

Not every hazard aboard a vessel has a dedicated ISO 7010 pictogram, and a general warning sign fills that gap so a risk is never left completely unmarked simply because it does not match a standard graphic.

Displaying a general warning at temporary hazard zones, unusual maintenance setups or newly identified risks keeps crew alert without waiting for a bespoke sign to be sourced, and it supports the vessel’s broader hazard identification and risk assessment process by giving every identified hazard a visible marker. It is also a practical tool for contractors and visiting technicians who introduce a temporary risk that the ship’s permanent signage set was never designed to cover.

Compliance and Certification

This sign is produced to align with IMO shipboard safety signage guidance and the ISO 7010 graphical symbol set, supporting the ISM Code’s requirement that identified hazards be clearly communicated to everyone working aboard. A general warning sign, correctly paired with supplementary hazard information where needed, is a documented control that internal safety auditors and Port State Control officers recognise as good practice for covering hazards that fall outside the standard pictogram library.

Installation Recommendations

Mount the sign directly at the point of the identified hazard, using the pre-drilled fixing holes with marine-grade fasteners for exterior and high-vibration locations, or the self-adhesive backing for temporary interior placements during a maintenance period.

Where the specific hazard is not obvious from context, pair the general warning sign with a brief text plate or toolbox talk so crew understand exactly what to watch for. Remove or relocate the sign once the hazard is resolved, since a lingering general warning with no ongoing risk behind it can lead to signage being ignored over time, undermining the credibility of every other warning sign on board.

• 425 x 425mm rigid or self-adhesive format for steel, aluminium or GRP surfaces
• Photoluminescent base for visibility during power loss or blackout drills
• UV-stable, saltwater-resistant construction for long-term exterior exposure
• Self-adhesive or pre-drilled fixing options for fast, secure installation
• ISO 7010 compliant exclamation pictogram, language-independent and instantly recognisable

Order the HS0011 General Warning sign today to keep every identified hazard clearly marked, even when it falls outside the standard pictogram set. Safety Sign Hub stocks the complete IMPA/ISSA-coded hazard sign range and ships marine-grade signage across Australia and to vessels in port, with bulk pricing for fleet orders.

See the full Hazard Signs range for related ISO 7010 warning pictograms, or browse our Fire Fighting Signs for IMO A.654(16) fire control signage to complete your vessel’s safety signage plan.