Laser safety standard
GB 7247 laser safety standard for welding cell planning
Use GB/T 7247.1-2024 as the laser product safety baseline, then connect it to NOHD, enclosure, PPE, fume, and workplace controls before approving a laser welding setup.
Quick answer
GB/T 7247.1-2024 covers laser product safety classification and equipment requirements. For laser welding, it should be paired with machine guarding, enclosure, access control, NOHD, eyewear, fume extraction, and local workplace procedures. Treat this page as a planning map, not a substitute for the official standard or a site-specific safety approval.
Product baseline
Classify the laser product, labeling, emission assumptions, and safety features.
Cell controls
Check enclosure, interlocks, access state, beam stops, eyewear, and warning systems.
Workplace layer
Add fume extraction, training, signage, maintenance procedures, and emergency controls.
How the standard family fits the welding cell
| Reference | Role | Planning use |
|---|---|---|
| GB/T 7247.1-2024 | China laser product safety baseline for equipment classification and requirements. | Use it to identify product classification, labeling, protective features, and product-level safety assumptions. |
| IEC 60825-1:2014 | International laser product safety reference for equipment classification and requirements. | Use it when comparing international laser product classification language with the local requirement set. |
| ISO 11553-1:2020 | Safety reference for laser processing machines. | Use it when the welding cell, enclosure, access path, interlocks, and machine guarding need to be checked together. |
| ANSI Z136.1-2022 | US safe-use reference for laser programs. | Use it for US laser safety program language, controlled areas, eyewear records, and operating procedures. |
| OSHA 1910 Subpart Q | US workplace welding, cutting, and brazing baseline. | Use it when the laser welding plan also needs workplace welding and ventilation controls. |
Planning sequence for laser welding safety
Classify the laser product
Record the laser class, wavelength, output mode, maximum accessible emission, labeling, and product safety features before using the welding setup.
Map the welding cell boundary
Mark the enclosure, beam path, access doors, viewing windows, fixture openings, and any service state where the beam path changes.
Calculate and document NOHD
Use power, wavelength, beam diameter, divergence, exposure assumption, and access state to define the nominal ocular hazard distance for planning.
Choose control layers
Prefer enclosure, interlocks, beam stops, warning systems, and controlled access before relying on eyewear as the only control.
Add workplace controls
Check fume extraction, material coatings, signage, training, maintenance tasks, and emergency stops before production release.
Common questions
Is GB/T 7247.1-2024 the same thing as a complete laser welding cell safety approval?
No. GB/T 7247.1-2024 supports laser product classification and requirements. A welding cell also needs enclosure, access, interlock, NOHD, fume, training, and workplace-control checks.
Where does NOHD fit into GB 7247 laser safety planning?
NOHD helps define the distance where eye exposure is expected to fall below the applicable exposure limit. It is a planning boundary and should be documented with the beam, exposure, enclosure, and reflection assumptions used.
Can eyewear replace an enclosure for industrial laser welding?
Eyewear is one control layer. For many high-power welding setups, the safer planning sequence is enclosure, interlocks, beam stops, controlled access, and then eyewear matched to wavelength and exposure assumptions.
Use the related WeldingCalc tools
NOHD Calculator
Estimate nominal ocular hazard distance from wavelength, power, divergence, and exposure assumptions.
Open NOHD calculatorSafety & Emissions Calculator
Combine safety-zone, PPE, fume, and workplace-control assumptions for planning records.
Open safety calculatorSafety Standards Matrix
Compare which standard supports product, machine, workplace, and documentation decisions.
Open standards matrix