What are the ISO standards for petroleum testing equipment

The ISO standards for petroleum testers mainly include the following categories:
1. Crude oil and petroleum products
ISO 3015: Determine cloud point.
ISO 3016: Measure pour point.
ISO 3104: Measure the kinematic viscosity.
ISO 3675: Measure density.
ISO 12185: Measure density and relative density.
ISO 12937: Measure the moisture content.
2. Lubricating oil
ISO 3448: Classification of viscosity of industrial liquid lubricants.
ISO 4263-1: Determine oxidation stability.
ISO 4406: Measure the degree of particle contamination.
3. Fuel
ISO 5164: Determine the octane rating of gasoline.
ISO 5165: Determine the cetane number of diesel fuel.
ISO 8217: Marine fuel specifications.
4. Natural gas
ISO 6974: Determine the composition.
ISO 6976: Calculate heat generation, density, and relative density.