Electroplating chemicals EU REACH testing report process
Date：2026-07-22 09:30:41 Classification
：【question】 Visits：
REACH Testing and Reporting Process for Electroplating Chemicals in the EU
Electroplating chemicals are a key regulated category under the REACH framework because many substances (such as chromium trioxide, nickel salts, cyanides, and cadmium salts) have CMR properties, skin sensitization, or high aquatic toxicity. Their testing and reporting process must strictly adhere to the OECD testing guidelines and the requirements of the REACH regulations' annexes. The complete process is as follows:
I. Pre-construction Preparation Stage
1. Substance Identification
Provide CAS number, EC number, molecular formula, structural formula, purity, and impurity profile (HPLC, GC-MS analysis).
Clarify the substance's SID and Reference Substance.
Distinguish between single-component and multi-component substances (UVCB substances).
2. Matching Tonnage with Data Requirements
| Tonnage Level | Data Requirements
| 1–10 tons | Basic physicochemical analysis + limited toxicology
| 10–100 tons | Above + complete acute toxicology + ecotoxicology
| 100–1000 tons | Add subchronic toxicology and reproductive toxicity screening
| >1000 tons | Complete chronic toxicology, carcinogenicity, and mechanism studies
3. Selecting a GLP-Certified Laboratory
The laboratory must comply with OECD GLP principles.
Prioritize institutions with experience in testing electroplating chemicals.
Confirm the laboratory is an EU Member State. GLP Compliance Certification
II. Testing Project Planning
Core Testing Modules (Annex VII-X)
1. Physicochemical Properties
Melting point/boiling point, density, vapor pressure, pH, water solubility
Redox potential (particularly important for electroplating chemicals)
Particle size distribution (applicable to metal compounds)
2. Health Toxicology
Acute toxicity (oral/inhalation/dermal)
Skin and eye irritation/corrosiveness
Skin sensitization (core item for electroplating chemicals)
Mutagenicity (Ames test, in vitro chromosomal aberration)
Repeated dose toxicity, reproductive toxicity screening
3. Ecotoxicology
Algal growth inhibition, acute activity inhibition of Daphnia, acute toxicity in fish
Impact on the biological community of metal sediments
Degradability, bioaccumulation
4. Environmental Fate
Hydrolysis, adsorption/desorption
Simulated degradation test (if applicable)
III. Testing Execution Process
Step 1: Test Protocol Development
Generate Test based on tonnage and data gap Plan
Submit to SIEF for data sharing assessment to avoid duplicate animal testing
Obtain testing fees and schedule
Step 2: Sample Preparation
Provide representative samples (purity >95%)
Indicate storage conditions and stability
Prepare vectors and controls
Step 3: Test Execution
Strictly follow OECD testing guidelines (e.g., OECD 404 skin irritation, OECD 406 sensitization)
Employ a QA unit to audit raw data
Abnormal results require retesting and verification
Step 4: Report Preparation
GLP reports must include:
Description of test substance characteristics
Experimental design and methodology
Complete raw data and statistical analysis
Results and conclusions
Laboratory accreditation and signature page
IV. Report Review and Submission
1. Internal Review
The regulatory affairs team verifies compliance with Annex requirements
Toxicologists assess data completeness
Prepare a Reliability Assessment – Klimisch score
2. IUCLID Entry
Enter report data into IUCLID 6. Software
Organize according to the Endpoint Study Record (ESR) structure
Associate substance identity and exposure scenario
3. Submit via REACH-IT
Submit along with the registration dossier
ECHA conducts a completeness check
If missing, ECHA will issue an information request letter
V. Key Quality Elements of the Test Report
| Element | Requirements
| GLP Compliance | Must comply with OECD GLP principles
| Test Method | Use OECD guidelines or equivalent methods
| Data Reliability | Klimisch Level 1 or 2
| Dosage Design | Dose-response relationship must be provided
| Statistical Analysis | Clearly defined method (ANOVA, Dunnett, etc.)
| Clarity of Conclusions | Determination of NOAEL/LOAEL
Shen Gongwang Security: 44030602006947