ANSI (American National Standards Institute) safety labels follow the ANSI Z535.4 standard, widely used in the United States. They use signal words — DANGER, WARNING, and CAUTION — along with color-coded headers to indicate hazard severity. ISO (International Organization for Standardization) labels follow ISO 3864-2 and rely on internationally recognized symbols, making them ideal for global or multilingual environments. Many facilities use both: ANSI for domestic compliance and ISO for exported or international equipment.

These ANSI Z535.4 signal words indicate hazard severity:

DANGER (red header) — An imminent hazard that will result in death or serious injury.
WARNING (orange header) — A potential hazard that could result in death or serious injury.
CAUTION (yellow header) — A potential hazard that may result in minor or moderate injury.

Choosing the correct signal word is essential for accurate hazard communication and regulatory compliance.

Yes. Our ANSI Z535.4 labels are designed to align with OSHA's Hazard Communication Standard (29 CFR 1910.145), which requires appropriate signal words, colors, and symbols. Our ISO 3864 labels comply with internationally recognized hazard communication standards. Requirements can vary by industry and jurisdiction — consult your safety officer for application-specific guidance.

ANSI Z535.4 is the American National Standard for Product Safety Signs and Labels. It defines design requirements for labels applied directly to products, equipment, and machinery — including signal words, color codes, symbol requirements, and message panel layout. Compliance helps manufacturers communicate hazards clearly and reduces product liability exposure.

ISO 3864 is an international standard defining design principles for safety signs and labels. ISO 3864-2 specifically covers product safety labels, categorized as:

• Hazard signs — Yellow triangle, indicating a physical danger
• Prohibition signs — Red circle with diagonal bar, indicating a forbidden action
• Mandatory Action signs — Blue circle, indicating a required action or PPE

This symbol-first approach communicates effectively across language barriers.

IEC 60417 is an International Electrotechnical Commission standard defining graphical symbols for electrical and electronic equipment — power on/off, earth ground, fuse, AC/DC indicators, and more. Our IEC 60417 labels are ideal for control panels, electronic enclosures, and power supplies where globally standardized symbols are required.

RoHS (Restriction of Hazardous Substances) labels indicate compliance with the EU directive that restricts hazardous materials like lead and mercury in electronics. We offer both EU RoHS compliance markers and China RoHS EFUP (Environment-Friendly Use Period) labels — essential for manufacturers selling into regulated markets.

Our labels use a vinyl or polyester face stock with an aggressive pressure-sensitive adhesive. The laminate surface resists chemicals, UV exposure, moisture, and abrasion — suitable for both indoor and outdoor industrial use. Contact us to discuss specialty material options for high-temperature, curved-surface, or extreme chemical exposure applications.

Common sizes include:

• 1-inch base triangular ISO symbols
• 2.25-inch base ISO hazard symbols
• 2-inch × 4-inch ANSI formatted labels
• 0.875-inch square IEC symbol labels (also available in rolls of 500)

The size for each product is listed on its product page. Contact us about custom sizing if needed.

Yes. We offer bilingual Spanish-English safety labels for multilingual workforces. These labels meet ANSI Z535.4 requirements and are popular in manufacturing, construction, and agricultural settings. Browse our Bilingual Labels category for available options.

Yes. In addition to safety labels, we offer nameplates for equipment identification — model numbers, serial numbers, electrical ratings, certifications, and manufacturer information. Visit our Nameplates page or contact us to request a custom quote.

Yes. If the label you need isn't in our catalog, we offer custom safety label printing in any size, with your specific text, symbols, colors, and logo — meeting ANSI Z535.4, ISO 3864, or other required standards. Visit our Custom Labels page or contact us to discuss your requirements and request a quote.

Yes. Many labels are available in quantity breaks that reduce per-unit cost. Some products, such as our IEC symbol labels, are also available in rolls of 500 units. Contact us to discuss volume pricing and recurring order options.

Our labels are used across a wide range of industries, including:

• Manufacturing and industrial production
• Electrical and electronics manufacturing (OEMs)
• Machinery and equipment manufacturers
• Construction and heavy equipment
• Healthcare and laboratory environments
• Energy, utilities, and power generation
• Aerospace and defense
• Government and military facilities

You can shop and purchase directly on our website — add items to your cart and check out securely online. For custom labels, nameplates, or large-volume orders, use our Contact Us page to submit your requirements and a team member will follow up with pricing and options.