ISO Viscosity Grades - Machinery Lubrication
The purpose of the ISO system of classifying viscosity grades is to establish a viscosity measurement method so that lubricant suppliers, equipment designers and users will have a common (standardized) basis for designating or selecting industrial liquid lubricants.
Viscosity Charts - Bob is the Oil Guy
2011年3月23日 · Many petroleum products are graded according to the ISO Viscosity Classification System, approved by the international standards organization (ISO). Each ISO viscosity grade number corresponds to the mid-point of …
ISO Viscosity Classification - Anton Paar
The result is known as the International Standards Organisation Viscosity Grade - ISO VG. This classification applies mainly for use with industrial lubrication. The viscosity of each grade ranges ± 10 % from the mid-point.
Industrial Lubricants - Viscosities vs. ISO-VG Grade
2012年11月4日 · ISO-VG viscosity grades for industrial lubricants. The diagram below indicates the minimum and maximum viscosities in centistokes for equivalent ISO-VG grades at temperature 40 o C. ISO VG stands for "International Standards Organization Viscosity Grade" and is a number ranged from 2 to 1500.
What Does The ISO VG Number Of A Lubricant Mean?
2018年7月26日 · ISO VG stands for “International Standards Organization Viscosity Grade” and is reported in numbers ranging from 2 all the way up to 1500. This number is critical because a lubricant’s viscosity is the single most important factor …
ISO 3448:1992 Industrial liquid lubricants — ISO viscosity …
Establishes a system of viscosity classification for industrial liquid lubricants and related fluids including mineral oils used as lubricants, hydraulic fluids, electrical oils and for other applications. The usual method for kinematic-viscosity determination is that specified in ISO 3104.
Viscosity Grade Table ISO 3448 - Engineers Edge
The ISO viscosity grade (VG) as specified in ISO 3448, is commonly used to classify oils. (See Table 1) Viscosity at 10°F (40°C), the approximate temperature of machinery, in centistokes (same as mm 2 /s), is used as the index.
For example, ISO viscosity grade 32 relates to the viscosity bracket 28.8 to 35.2 mm2/s, the mid point of which is 32.0 mm2/s. This is illustrated in the table below, which shows the ISO viscosity grade numbers, the mid-points of each bracket, and the viscosity limits.
ISO 3448:1992(en), Industrial liquid lubricants ? ISO viscosity ...
A continuous system, in which any lubricant within the viscosity range could be given a grade number, was first considered, but it was recognized that this would involve either an unduly large number of grades or an unduly wide range of permitted kinematic viscosities for each grade.
Viscosity index and classifications - Society of Tribologists and ...
For example, an ISO viscosity grade 100 could have a viscosity as low as 90 cSt or as high as 110 cSt at 40 C (see Table 1). Most mineral industrial oils will have a VI of around 95 to 105. If the VI is greater than 120, it may be called a high VI oil.