ISO 80000-11:2019
Quantities and units — Part 11: Characteristic numbers
Quantities and units — Part 11: Characteristic numbers
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 50
- Дата публикации:
- 22 октября 2019 г.
- Издание:
- ISO IS 80000 edition 2 version 1
- ICS:
- 01.060
This document gives names, symbols and definitions for characteristic numbers used in the description of transport and transfer phenomena.
Abstract
Overview
ISO 80000-11:2019 - Quantities and units - Part 11: Characteristic numbers is the second-edition international standard that defines names, symbols and clear definitions for characteristic numbers used to describe transport and transfer phenomena. Characteristic numbers are physical quantities of unit one (commonly called “dimensionless” numbers) that express ratios of forces, energies or characteristic times and are essential for similarity, scaling and modelling in engineering and science.
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