I. Application and Development of Laser Levels
Laser levels are high‑precision measuring and positioning tools widely used in construction, decoration, civil engineering, and other fields. They assist in construction layout and elevation transfer by projecting horizontal or vertical laser beams. As the construction industry demands ever‑higher accuracy and efficiency, laser levels have evolved from simple point‑to‑point measuring devices to intelligent instruments capable of projecting multiple lines and planes with self‑levelling functions. Market demand continues to grow steadily.
However, laser products inherently carry potential risks of radiation damage to the human eye and skin. Taking the eye as an example, prolonged direct viewing of the visible beam emitted by a laser level can cause irreversible retinal damage. Therefore, before entering the market, laser levels must undergo rigorous safety testing and classification certification to ensure safe use. This has directly driven the widespread adoption of the IEC 60825‑1 standard globally.
II. What is IEC 60825‑1 Testing for Laser Levels?
IEC 60825‑1 is the core safety standard for laser products published by the International Electrotechnical Commission (IEC). Its full title is “Safety of laser products – Part 1: Equipment classification and requirements”. It applies to all laser products with wavelengths between 180 nm and 1 mm. Its primary objective is to accurately determine the laser safety class of a product through scientific risk assessment, and to verify that labelling, protective measures, and user information meet the requirements for that class.
Based on laser output power, wavelength, and potential hazard level, the standard classifies laser products into seven classes: Class 1, 1M, 2, 2M, 3R, 3B, and Class 4. For civil‑use measuring tools like laser levels, the vast majority fall into Class 2 (output power ≤1 mW, relying on the human eye’s blink reflex for protection) and Class 3R (output power ≤5 mW, slightly higher risk).
This testing is not only an authoritative proof of product safety but also a critical prerequisite for obtaining EU CE certification, US FDA laser product registration, and other international market access requirements. In the EU, for example, laser levels are included in the list of risk‑based devices, making third‑party testing and CE marking mandatory before they can be placed on the market.
III. IEC 60825‑1 Testing Process
Obtaining an IEC 60825‑1 test report typically follows the standard procedure below:
Step 1: Consultation and evaluation. The manufacturer provides the testing body with basic information such as the product specification sheet, laser parameters, and circuit schematics. The body evaluates the applicable scope and feasibility.
Step 2: Contract signing. Both parties sign a formal service contract after confirming the test items, costs, and timeline.
Step 3: Sample submission. Submit the test sample as required, along with supplementary materials such as the user manual and label samples.
Step 4: Testing execution. Engineers conduct comprehensive tests on the sample according to the standard. The core elements include:
Actual measurement of laser radiation parameters: Using calibrated power meters, beam profilers, and other precision instruments, measure key data such as accessible emission limits (AEL), continuous‑wave power, beam diameter, and divergence angle.
Laser safety class determination: Based on the measured parameters and the standard rules, determine the class (e.g., Class 2 or Class 3R).
Assessment of safety requirements: Verify whether product labelling (warning label format and placement), engineering protection measures (protective housing, emergency stop device), and safety instructions in the user manual comply with the standard.
Fault‑simulation testing: Verify that laser output does not exceed limits under abnormal operating conditions.
Step 5: Report compilation and review. Prepare the test report and confirm the conclusions after internal review. The report clearly lists the test results and judgments for each clause (e.g., P for pass, N/A for not applicable).
Step 6: Report delivery. The final report is delivered to the customer in both electronic and printed versions for subsequent certification applications or market access.
IV. IEC 60825‑1 Testing Timeline
Under normal circumstances, the turnaround time for an IEC 60825‑1 test report for a laser level is 7 to 15 working days. The actual timeline depends on the following factors:
Product complexity: Simple products with a single wavelength and fixed power are tested faster; products with multiple wavelengths or adjustable power require more test items and thus additional time.
Sample preparation: If the sample is not in a testable state (e.g., damaged laser module, missing labels), re‑preparation may cause delays.
Remediation requirements: If the first test fails, the manufacturer must make corrections and re‑test, significantly increasing the timeline.
Laboratory scheduling: During peak seasons, laboratory capacity may be limited, extending the cycle.
For urgent cases, some institutions offer expedited services that can compress the timeline to within 5 working days. Full‑scope testing (including all safety requirement checks) typically takes around 15 working days.
V. IEC 60825‑1 Testing Costs
There is no fixed price for testing; costs are determined mainly by the following factors:
Product complexity: A Class 1, single‑wavelength laser level has fewer test items and thus lower costs; a high‑precision, multi‑wavelength, or Class 3R product requires more stringent testing and therefore higher costs.
Scope of test items: Costs vary significantly between a basic laser safety test and a comprehensive package that includes electrical safety testing, environmental adaptability testing, etc.
Combined certifications: If the manufacturer simultaneously applies for CE certification, FDA registration, or other market access services, testing bodies often offer package discounts, making the total cost lower than applying for each separately.
Manufacturers should obtain a customised quotation from the testing body based on the actual product details. For a standard single product, the cost of an IEC 60825‑1 test report generally ranges from several thousand to over ten thousand RMB. It is advisable to communicate with the testing body early to clarify the budget.
VI. Where to Find a Testing Body – Shenzhen Zhongwei Inspection
Choosing a professional laboratory with CNAS (China National Accreditation Service for Conformity Assessment) accreditation is key to ensuring the authority and international acceptance of the test report.
Shenzhen Zhongwei Inspection (Shenzhen Zhongwei Testing Technology Co., Ltd.) is a professional laser product testing and certification body in South China. We have long provided the following services to domestic customers:
Safety class certification for laser levels, laser rangefinders, and other measuring instruments (IEC 60825‑1, EN 60825‑1, EN 50689, etc.)
Coverage of multiple product categories, including test & measurement lasers, industrial lasers, medical lasers, and consumer lasers
Dual CNAS/CMA accreditation; reports are internationally recognised and can assist in CE, FDA, and other certification applications
Over 3,000 clients served, with more than ten years of industry experience – high testing efficiency, comprehensive capabilities, and professional reliability
Manufacturers can contact Zhongwei Inspection via its official website or telephone to inquire about specific testing plans and obtain tailored quotations and scheduling.
Summary: IEC 60825‑1 testing for laser levels is a critical safety certification step for entering international markets. The standard process covers five stages: document submission, precision measurement, safety assessment, class determination, and report issuance. The typical timeline is 7‑15 working days, and costs depend on product complexity. Choosing an accredited professional institution such as Shenzhen Zhongwei Inspection ensures testing efficiency and report credibility, helping your products reach global markets compliantly.
