Key oil testing products: transformer oil、 hydraulic oil、 gear oil、 solar power station transformer oil、 gasoline、 diesel、 diesel engine oil、 gasoline engine oil

Testing items: photovoltaic power station transformer oil testing (monitoring)、 grid connected power station transformer oil testing (monitoring)、 substation transformer oil testing (monitoring)、 step-up transformer oil testing (monitoring)、 photovoltaic grid connected power station transformer oil change testing Solar power station system transformer oil inspection、 110KV power station transformer oil change inspection、 220KV power station transformer oil change annual inspection、 500KV photovoltaic grid connected power station transformer oil inspection、 35KV grid connected transformer oil annual inspection、 power supply system transformer oil change inspection

1. Crude oil inspection: classified by composition: paraffin based crude oil、 naphthenic based crude oil、 and intermediate based crude oil Classified by sulfur content: ultra-low sulfur crude oil、 low sulfur crude oil、 sulfur containing crude oil、 and high sulfur crude oil Classified by specific gravity: light crude oil、 medium crude oil、 and heavy crude oil are classified into three categories

Testing items: water content、 density or relative density、 nitrogen content、 saturated hydrocarbons、 sediment and biological substances in crude oil、 iron、 nickel、 sodium、 vanadium content、 crude oil acid value、 residual carbon、 chlorine content、 viscosity、 salt content、 composition analysis、 etc.

2. Fuel oil testing: gasoline、 diesel、 kerosene、 1 # -7 # fuel oil

Testing items: octane number、 anti knock index、 lead content、 distillation range、 vapor pressure、 actual gum Induction period、 sulfur content、 doctoral test or mercaptan sulfur content、 copper corrosion、 water-soluble acid or alkali、 mechanical impurities and moisture、 benzene content、 aromatic content、 olefin content、 oxygen content、 methanol content、 manganese content、 and iron content

3. Gasoline testing: GB17930 divides gasoline into three grades based on the octane number of the research method: 90 #、 93 #、 and 97 #.

4. Diesel testing: Ordinary diesel GB252 (diesel engine fuel for three wheeled vehicles、 low-speed trucks、 tractors、 and non vehicle compression ignition engines) Ordinary diesel is divided into 10 # diesel、 5 # diesel、 0 # diesel、 -10 # diesel、 -20 # diesel、 -35 # diesel、 and -50 # diesel based on its pour point

Automotive diesel GB 19147 (for compression ignition engine vehicles) is divided into 5 # diesel、 0 # diesel、 -10 # diesel、 -20 # diesel、 -35 # diesel、 and -50 # diesel based on their pour point Test items: chromaticity、 oxidation stability、 cetane number or cetane index、 sulfur content、 10% residue carbon、 acidity、 distillation range、 flash point、 pour point、 copper corrosion、 ash content、 density、 moisture、 mechanical impurities、 kinematic viscosity、 lubricity、 polycyclic aromatic hydrocarbons、 fatty acid methyl ester content 5. Lubricating oil testing: gasoline engine oil、 diesel engine oil、 lubricating grease for food machinery、 air compressor oil、 aviation lubricating oil、 gear oil

Test items: low temperature dynamic viscosity、 boundary pumping temperature、 kinematic viscosity、 viscosity index、 pour point、 moisture、 foam property、 evaporation loss、 filtration、 uniformity and mixing、 high temperature sediment、 gel index、 mechanical impurities、 flash point、 phosphorus、 base number、 sulfate ash、 sulfur、 nitrogen. Gasoline: GB17930-2011 divides gasoline into three grades: 90 #、 93 #、 and 97 # based on the octane number of the research method. Kinematic viscosity、 pour point、 flash point、 corrosion test、 anti emulsification、 liquid phase corrosion、 sulfate ash content、 aging characteristics、 residue characteristics after vacuum distillation of 80%、 neutralization value、 water-soluble acid and alkali、 moisture、 mechanical impurities、 etc.

6. Dimethyl silicone oil detection : Flash point、 kinematic viscosity、 acid value、 mechanical impurities、 freezing point、 water-soluble acid-base、 transparency、 dielectric loss、 moisture、 breakdown voltage、 gas content、 etc Kerosene detection: chromaticity、 mercaptan sulfur、 sulfur content、 distillation range、 flash point、 freezing point、 kinematic viscosity、 copper corrosion、 mechanical impurities and moisture、 water-soluble acidity and alkalinity、 density、 and combustibility 7. Gasoline testing: GB17930 divides gasoline into three grades based on the octane number of the research method: 90 #、 93 #、 and 97 # Solvent oil、 lubricating oil、 hydraulic oil、 lubricating grease、 gear oil、 rust prevention oil、 chain oil、 heavy oil、 bio alcohol oil、 transformer oil、 anti fingerprint oil、 heat transfer oil、 engine oil、 turbine oil、 residual oil、 special oil、 grinding oil、 cutting oil、 bearing oil、 petroleum jelly、 coal tar、 engine oil activator

The content of the above article is a partial list. For more testing needs and details、 please consult the online consultant of the free consulting agency: 15601902607 (phone and WeChat). Doing testing on the top 100 inspection websites - issuing authoritative testing reports has legal effect

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1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report

inspection and testing process:

1. Telephone communication and confirmation of requirements

Testing and testing characteristics:

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