Overview
ISO 17846:2004 defines the format and symbols for wordless precautionary labels applied by manufacturers to equipment and consumables used in arc welding, plasma arc cutting, and thermal/flame cutting. The standard promotes consistent, language‑independent product safety labels (symbols-only) so that operators worldwide can quickly recognize hazards and avoidance measures. It is expressly not intended to replace workplace safety signs, operator training, or other mandatory national/regional labels such as material safety data sheets.
Key Topics and Requirements
- Wordless (symbols-only) labels: Labels must contain no text and rely on standardized graphical symbols to communicate hazards and precautions.
- Label elements: Minimum content includes alert symbols (general or specific), hazard‑source symbols, and hazard‑avoidance symbols.
- Design and selection: A designated competent person must select symbols based on product/process hazard analysis and balance clarity against clutter; hazards should be prioritized by severity and likelihood.
- Legibility and placement: Labels must be conspicuous, visible during normal use, and sized per IEC 80416-3 legibility guidance. If space is limited, an abridged label must indicate where the full label is located.
- Durability: Where possible, labels should meet durability requirements referenced in IEC 60974-1.
- Optional colour and shape use: Colours (e.g., yellow for caution) and shapes (e.g., triangles for warnings) may be used but must conform to ISO 3864‑2 design principles.
- Annexes: Annex A lists validated precautionary symbols (alert, hazard sources such as electrical shock, fumes, hot surfaces, noise, etc.; and avoidance actions). Annex B provides example label layouts. Symbol comprehension was validated by large international surveys.
Applications and Who Uses It
ISO 17846 is practical for:
- Manufacturers of welding power sources, wire feeders, torches, and consumable packaging who must apply product safety labels.
- Product safety and compliance engineers designing labels and manuals.
- Quality and regulatory teams ensuring conformity with international labelling practices.
- Procurement and maintenance staff who rely on consistent visual cues to identify hazards.
- It improves safety communication across multilingual workforces and international markets by using standardized, validated symbols.
Related Standards
- ISO 3864-1 / ISO 3864-2 - safety colours and product safety label design principles
- IEC 80416-3 - graphical symbol legibility guidelines
- IEC 60974-1 - durability requirements for arc welding equipment labels
Keywords: ISO 17846:2004, wordless precautionary labels, welding safety, arc welding, plasma arc cutting, product safety labels, ISO 3864.
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