Flash point test: adopt GB-267 Petroleum Products Flash Point and Fire Point Test Method Open Cup Method
     Freezing point test: GB-510 Test method for freezing point of petroleum products
     Relative density test: GB-4472 chemical product density relative density test
     Dielectric constant test: GB-5654 liquid insulating material dielectric constant, dielectric loss and volume resistivity test
     Refractive index test: GB-6488 Refractive index test method for chemical products
     Volatility test: GB-6740 Test method for volatile and non-volatile substances in chemical products
     Kinematic viscosity test: HG/T-2363 silicone oil kinematic viscosity test method


About silicone oil, please check the details:
https://www.siliconefoam.net/product-linear-vinyl-silicone-oil-iota-273-.html