As a high-performance lubricating material, the environmental certification and standards of phenyl silicone oil lubricants mainly focus on core indicators such as biodegradability, toxicity control and volatile organic compound (VOC) emissions. The following is a systematic analysis from three dimensions: international mainstream certification system, key technical standards and industry application compliance:

1. International mainstream environmental certification system
EU REACH regulations
Core requirements: Strict registration, evaluation and authorization of chemical substances such as phenyl and silicone monomers contained in phenyl silicone oil, and limit the content of persistent organic pollutants (POPs) and carcinogenic, mutagenic and reproductive toxic (CMR) substances.
Certification path: It is necessary to submit a chemical safety report (CSR) through the European Chemicals Agency (ECHA) and meet the limit thresholds for specific hazardous substances in Annex XVII (such as benzene content must be less than 0.1%).
US NSF/ANSI 61 standard
Application scenario: For lubricants in contact with drinking water systems, the migration of heavy metals (lead, mercury, etc.) in phenyl silicone oil is required to be less than 5μg/L, and the release of volatile organic carbon (VOC) must be less than 50g/L.
Certification significance: Ensure that lubricants do not pollute water quality under extreme working conditions.
German "Blue Angel" Eco-label
Core indicators: Biodegradation rate must be ≥60% (OECD 301F standard), acute oral toxicity LD50＞2000mg/kg, and must not contain environmental hormone substances such as APEO (alkylphenol polyoxyethylene ether).
Market value: Products certified by this certification can enjoy green procurement priority in the EU market.

2. Key technical standards and test methods
Biodegradability test
Method basis: Using OECD 301B (CO₂ generation method) or 301F (respirometry method), a mineralization rate of ≥60% must be achieved within 28 days.
Typical case: Japan's Shin-Etsu KF-54 phenyl silicone oil has increased its biodegradability to 65% by optimizing its molecular chain structure, far exceeding the industry average.
Toxicity assessment
Test items: including acute dermal toxicity (OECD 402), acute toxicity to fish (LC50>100mg/L) and algae growth inhibition test (EC50>10mg/L).
Compliance requirements: Lubricants must be classified by the EU CLP regulations to avoid being labeled as "harmful to aquatic life".
VOC emission control
Standard limit: US EPA Method 24 requires VOC content ≤250g/L, while the EU DECOPaint Directive further limits it to 140g/L (effective in 2025).
Technical path: By introducing low-volatility siloxane segments (such as phenyl silicone oil with hydroxyl groups on the side chains), VOC emissions can be reduced to below 120g/L.

3. Compliance requirements for industry applications
Electronic and electronic industry (IEC 62321 standard)
Controlled substances: The content of heavy metals such as lead, mercury, cadmium, and hexavalent chromium in phenyl silicone oil must be less than 1000ppm, and polybrominated biphenyls (PBB) and polybrominated diphenyl ethers (PBDE) must be completely banned.
Certification case: Dow Corning DC-346 phenyl silicone oil has passed RoHS 2.0 certification and is suitable for 5G base station cooling systems.
Food and pharmaceutical industry (FDA 21 CFR 175.300)
Migration limit: When phenyl silicone oil comes into contact with food, the phenyl migration amount must be less than 0.5mg/kg, and cyclic siloxanes (D4/D5/D6) cannot be detected.
Solution: Use linear phenyl silicone oil with a purity of ≥99.5%, and conduct simulated migration tests through third-party organizations (such as SGS).
Automobile manufacturing industry (ILSAC GF-6 standard)
Performance requirements: Must pass Ford M1144-A engine bench test to prove that phenyl silicone oil has no toxic effect on the three-way catalytic converter in the temperature range of -40℃ to 150℃.
Technical breakthrough: By introducing phenyl-methyl copolymer structure, a domestic lubricant reduces the low-temperature viscosity index (CCS) to 3000mPa·s, while meeting the National VI emission standards.