This instrument is designed and made as per the industry standard of People's Republic of China SY/T5651 Technical Condition of Petroleum Products Kinematic Viscosity Tester, GB/T 265 Petroleum products-Determination of kinematic viscosity and calculation of dynamic viscosity and ASTM D445 Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids. It is suitable to determine kinematic viscosity of liquid petroleum products (Newtonian fluids) by measuring the time for a volume of liquid to flow under gravity through a calibrated glass capillary viscometer at a constant temperature.

    Shanghai Changji Geological Instrument Co.,Ltd is established in 1998,the former is Shanghai Geological Instrument Factory under the Ministry of  the National Geology and Mineral Resource.

     Changji has four major series and more than 200 types products: more 140 types petroleum instruments,more 60 types highway instruments,each 10 types for laboratory instruments,Rotary viscosity instruments and geological instruments.Also we develop and produce more than 30 kinds of non-standard instruments according to the clients' special requirements each year.It depends on the complete category products,strong matching capacity and fast development ability,its products are not only widely used in China,but also sold and welcomed in 20 countries.

    The highway instrument three major index:penetrometer,ductility tester and softening point tester.Changji's products are with the advanced technical features and fit the ISO, ASTM, IP, GB and other international standards.Recent years,we develop smart instruments with the communication port to realize the remote control, transmitting test parameters and networking management of Laboratory equipments.

    Changji pays more attentions to develop and invest in the technology innovation.So far,we have gotten the China National Invention Patent 1,the No. ZL 2005 1 0024291.9;Utility Model Patent 2,the No.ZL 2004 2 0023460.8 and ZL 2013 2 0365490.6.Other two national innovation patents and two ulility model patents are in the process of the official investigation.Changji's products become more and more stabilization and elegant after many years development and research.So selecting Changji,you choose the precipitation of time and satisfication.

1. Are your products competitive?
Sure, we are leading manufacturers in China with more than 30 years' experience and professional team, we can guarantee high quality, provide training and good after-sales service.
2. How can I choose the right one for me?
You can contact us by email, online or other ways with detailed requirements, we will recommend right one accordingly.
3. What if I have difficulty in using the instrument?
Pls contact us any time when you have difficulty in using the instruments, we will provide equipment operation manual, operation video and so on. We can also provide training acoordingly.
4. When can I receive the goods?
Ordinary non customized models will be delivered within 7 working days. The transportation time is determined by the logistics company, and the general transportation time is 5-7 days.
5. How to deliver?
For domestic customers, we usually provide door-to-door service. For customers overseas, we usually deliver the instruments to the designated  places.
6. How about the packing ?
Wooden cases or hard boxes are used to prevent possible damage during transportation of the instruments.
7.How about the warranty?
Usually warranty is 12 months.