ISO Vg Grade

Reference data and engineering information about iso vg grade for standard organizations applications.

Overview

Engineering reference data for ISO Vg Grade in standard organizations.

$ISO \; 9001:2015$

Quality management systems.

$ASTM \; E8$

Standard test methods for tension testing.

$ANSI/ASME \; B16.5$

Pipe flanges and flanged fittings.

Symbol	Description	Unit
$ISO$	International Organization for Standardization	—
$ASTM$	American Society for Testing and Materials	—
$ANSI$	American National Standards Institute	—

These tables show the equivalent viscosity grades across different industry standards at 40°C.

The following formulas are essential for converting between temperature and viscosity units.

The relationship between Celsius ( $t_C$ ) and Fahrenheit ( $t_F$ ) is: $t_C = \frac{5}{9} (t_F - 32)$ $t_F = \frac{9}{5} t_C + 32$

Reyn to Pascal-second: 1 reyn (lb_f·s/in²) = 6896.55 Pa·s
Centistoke to Centipoise: 1 cSt = 1 cP / SG, where SG is the specific gravity of the oil.