Steps for obtaining a RoHS test report for large-screen displays in the EU
Date：2026-06-22 09:25:29 Classification
：【question】 Visits：
Large-Screen Display EU RoHS Testing Report Steps
Large-screen displays (such as LCD/LED displays, touchscreen advertising machines, etc.) fall under the "Information Technology and Communication Equipment" category regulated by RoHS 2.0. Due to the complexity of its components (including display modules, power boards, driver boards, housings, cables, etc.), testing must proceed according to the following steps:
I. Confirm Product Scope and Exemption Clauses
Confirm whether the product falls within the 11 categories controlled by RoHS 2.0 (displays are IT equipment and must comply).
Check whether the product involves any items on the Annex III/IV exemption list (such as lead in some display glass, lead in certain alloys, etc.), and clarify the exemption period.
Exemptions may be applied for for special uses such as medical or military applications; ordinary commercial displays are not exempt.
II. Product Disassembly and Material Identification (BOM List)
Disassemble the large-screen display layer by layer according to RoHS testing requirements, separating the homogeneous material units.
Key components to be disassembled include:
LCD/LED display module (including glass substrate, backlight panel, optical films)
Metal casing and bracket (aluminum, iron, plating)
Power board (PCBA), driver board, logic board
Plastic components (casing, buttons, insulating materials)
Wires, connectors, solder
Establish a complete BOM list, indicating the material, supplier, and number of testing units for each component.
III. XRF Screening Test (Initial Screening)
Non-destructive initial screening is performed on each homogeneous material unit using XRF (X-ray fluorescence spectrometry).
Focus on testing for lead, mercury, cadmium, hexavalent chromium, PBB/PBDE, and four phthalates (newly added under RoHS 3).
XRF results are categorized into three types:
Pass: Content far below the limit
Fail: Clearly exceeds the limit
Marginal: Approaching the limit, requires chemical retesting
IV. Chemical Wet Retesting (Result Confirmation)
Samples deemed unqualified or marginal by XRF, as well as the four phthalates (which XRF cannot accurately detect), must be sent to a laboratory for chemical analysis.
Common methods:
Lead, Cadmium → ICP-OES, ICP-MS, AAS
Hexavalent Chromium → UV-Vis spectrophotometry (EPA 3060A/7196A)
PBB/PBDE → GC-MS (Gas Chromatography-Mass Spectrometry)
Phenylate (4 items) → GC-MS or HPLC
Each test must be compared to the RoHS limit for judgment; exceeding the limit for a single material constitutes non-compliance for the entire batch.
V. Issuance of RoHS Test Report and CE Declaration of Conformity
The laboratory compiles all test data and issues a formal RoHS test report according to the EN IEC 63000 or IEC 62474 template (DEZEW Testing CNAS Registration No.: L8083).
The report typically includes: product information, testing standards, limit requirements, testing methods, test results for each material, and conclusions.
The testing organization incorporates RoHS content into the CE Declaration of Conformity (DoC). Products can only enter the EU market after affixing the CE mark.
The report is typically valid for 3-5 years, but retesting is required if product materials, processes, or supply chains change.
Practical Recommendation: Large-screen displays have numerous components and high testing costs. It is recommended to communicate with testing organizations during the product development stage to collect Supply Chain Material Declarations (CMDs) for key components (especially solder, plastic parts, and display glass) in advance. This can significantly reduce the workload and costs of disassembling and testing the finished product.
Shen Gongwang Security: 44030602006947