Search results
Results From The WOW.Com Content Network
In industrial design, preferred numbers (also called preferred values or preferred series) are standard guidelines for choosing exact product dimensions within a given set of constraints. Product developers must choose numerous lengths, distances, diameters, volumes, and other characteristic quantities .
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.
The E series of preferred numbers was chosen such that when a component is manufactured it will end up in a range of roughly equally spaced values (geometric progression) on a logarithmic scale. Each E series subdivides each decade magnitude into steps of 3, 6, 12, 24, 48, 96, and 192 values, termed E3 , E6 , and so forth to E192 , with maximum ...
Pages for logged out editors learn more. Contributions; Talk; E6 series of preferred numbers
Download as PDF; Printable version; In other projects Wikidata item ... E3 series may refer to: E3 series (preferred numbers), a series of standardized resistor and ...
The number following the DN is a nominal value that is roughly the number of millimeters of a circular feature on the connection point of the pipe, fitting, coupling, etc., but often differing by a noticeable amount. If the DN value is related to the internal bore diameter of the feature, the size should be represented by DN/ID (for Inside ...
ISO 17:1973 Guide to the use of preferred numbers and of series of preferred numbers; ISO 18:1981 Documentation — Contents list of periodicals; ISO/R 19:1956 Shipbuilding — Inland navigation — Deckbolts [Withdrawn without replacement] ISO/R 20:1956 Shipbuilding — Inland navigation — Rivets for Hatches [Withdrawn without replacement]
A convenient number is a number which in several situations can prove convenient for use by humans for counting and measuring, and is related to preferred numbers (which are standard recommendations used for choosing product dimensions).