Lubricating oil viscosity index tests, motorcycle gear testing, various oil testing agencies
The wigand testing laboratory introduces advanced fully automated and imported inspection equipment, has a professional technical management operator, with senior and middle engineers accounting for over 80 per cent of the company's personnel, and has the capacity and the conditions to exercise effective control over the quality of the tests; strictly enforces national laws, regulations, quality guidelines to be fair, impartial, accurate and efficient; and does not subject the quality of the tests to undue pressure or influence from administrative, financial, commercial or other sources; strictly controls, guarantees the independence of the work of the laboratories and the fairness, accuracy and confidentiality of the results, and provides a good service to clients。
Oil standards
Cb/t 4509-2019 electric gear pumps for ships
Db37/t 1491-2009 synthetic heavy load industrial gear oils
Db37/t 2181-2012 water-based light load industrial closed gear oil
Gb 13895-2018 heavy load vehicle gear oil (gl-5)
Scope of testing:
Gb 13895-1992
Motion viscosity (40°c, 100°c), tipping point, temperature at 150 pa s, flash point (opening), ditch point
Number, bubbles, corrosive tests, mechanical impurities, moisture, pentadecane insoluble, sulphate ash, sulphur, phosphorus, nitrogen, calcium, storage stability, rust tests, anti-grass strength, heat oxidation
Gb 5093-2011
Motion viscosity (40°c, 100°c), viscosity index, flash point (opening), tipping point, water, mechanical impurities, copper graft
Corrosion, oxidation, rotor oxygen, foam, emulsion resistance, extreme pressure performance, carrying capacity, cutness, four-ball test
Jt/t224-2008
Motion viscosity (100°c), viscosity index, temperature at 150 pa s, flashpoint (opening), tipping point, machine, copper corrosive, erosion test, foam properties (foam orientation/foam stability), phosphorus content, sulphur content
Nb/sh/t 0467-2010
Appearance, kinetic viscosity (40°c), viscosity index, temperature at 150 pa s, flashpoint (opening), dumping mass, moisture, copper corrosive, liquid corrosive test, foam properties (foam preference/foam stability), emulsion resistance, oxidation, carrying capacity, wear resistant properties (methods), wear resistant properties (fzg or cl-100 gear machine law)
Standard testing of diesel for engineering vehicles national oil laboratory
