Butyl rubber damping and shock absorber EU ROHS testing report
Date：2026-05-09 10:05:54 Classification
：【question】 Visits：
Butyl rubber damping and shock absorber EU ROHS testing report
1、 Overview of ROHS Directive
The full name of the EU ROHS (Restriction of Hazardous Substances) Directive is the "Directive on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment". The current effective versions are ROHS 2.0 (2011/65/EU) and ROHS 3.0 (2015/863), which restrict the following ten hazardous substances:
|Material | Limited Requirements
|Lead (Pb) | ≤ 1000ppm
|Mercury (Hg) | ≤ 1000ppm
|Cadmium (Cd) | ≤ 100ppm
|Hexavalent chromium (Cr ⁶⁺) | ≤ 1000ppm
|Polybrominated biphenyls (PBB) | ≤ 1000ppm
|Polybrominated diphenyl ether (PBDE) | ≤ 1000ppm
|Di (2-ethylhexyl) phthalate (DEHP) | ≤ 1000ppm
|Methyl butyl phthalate (BBP) | ≤ 1000ppm
|Dibutyl phthalate (DBP) | ≤ 1000ppm
|Diisobutyl phthalate (DIBP) | ≤ 1000ppm
2、 Key points for ROHS testing of butyl rubber damping and shock absorber
1. Material composition analysis
The butyl rubber matrix itself usually does not contain restricted harmful substances
Attention should be paid to whether additives such as fillers, thickeners, and crosslinkers contain restricted substances
2. Key testing items
Lead and cadmium: often present in pigments and fillers
Phthalates: Some plasticizers may contain such substances
Polybrominated biphenyls/ethers: may be present in flame retardants
3. Application process
1. Submit the Bill of Materials (BOM) for the product
2. Laboratory testing or initial screening using XRF scanning
3. If there are suspected items exceeding the standard, conduct quantitative analysis of chemical composition
4. Issue ROHS compliance report or certificate
3、 Precautions
ROHS mainly targets electronic and electrical equipment, but if butyl rubber shock absorbers are used in supporting fields such as automobiles and electronic products, they usually also need to meet ROHS requirements
It is recommended to choose a third-party testing institution with CNAS/CMA qualifications for testing
The validity period of the report is usually 1 year, and if there are changes in raw materials or processes, retesting is required
Shen Gongwang Security: 44030602006947