ASTMMaterial & Fabrication

ASTM D2270

Calculating Viscosity Index from Kinematic Viscosity

US / International
Material & Fabrication

Reference profile

Designation
ASTM D2270
Title
Calculating Viscosity Index from Kinematic Viscosity
Issuing body
ASTM
Current edition
[verify]
Status
Library record: draft; official standard status [verify].
Category
Material & Fabrication
1

Overview

Method for calculating the viscosity index (VI) from kinematic viscosities at 40°C and 100°C.

2

Scope & Applicability

Covers

  • Viscosity index
  • Temperature-viscosity behavior

Does NOT cover (exclusions)

  • Exclusions are not documented in this library record. Confirm the official publication, neighbouring codes, the adopted edition, and jurisdictional boundaries before application.
3

Key Requirements

Lifecycle requirements

  • Lubricant VI evaluation
  • Oil selection
4

Technical Details

Method for calculating the viscosity index (VI) from kinematic viscosities at 40°C and 100°C.

Components: Viscosity index, VI, 40°C / 100°C.

Where to find it in the codeRefer to the official table of contents and the sections cited by the project specification; section numbering can vary by edition.
5

Engineering Notes

  • Higher VI means viscosity changes less with temperature, favourable for wide-temperature machinery.
6

Related Standards

  • ASTM D445

    Companion or referenced standard; verify its exact relationship in the adopted edition.

  • ISO 3448

    Companion or referenced standard; verify its exact relationship in the adopted edition.

7

Source, Edition & Status

Publisher
ASTM
Edition Year
N/A
Industries
Refinery, Power, General Industry
Content Status
draft
Last Reviewed
2026-07-01
Last Updated
2026-07-01
Verified By
Engineering Reviewer
Official Link
N/A

This paraphrased summary is a discovery aid. Do not reproduce or substitute it for the copyrighted official publication or jurisdictional requirements.