Fans — Laboratory test methods for air circulating fans
This standard shall be used as the basis for testing electrically powered air circulating fan heads and ceiling fans when air is used as the test gas. The scope is limited to air circulating fans with an input power greater than or equal to 125 W—except for ceiling fans that are larger than 1800 mm, which do not have a lower input power limit. The diameter of the fan being tested shall be limited…
Information technology — International string ordering and comparison — Method for comparing charact...
This document defines the following.
— A reference comparison method. This method is applicable to two character strings to determine their collating order in a sorted list. The method can be applied to strings containing characters from the full repertoire of ISO/IEC 10646. This method is also applicable to subsets of that repertoire, such as those of the different ISO/IEC 8-bit standard…
This document describes minimum requirements for small spacecraft.
Small spacecraft may employ untraditional spacecraft development and management philosophy. These spacecraft projects are usually budget-limited or mass-limited, which makes a single (exclusive) launch unaffordable.
The scope of this document encompasses different categories of small spacecraft — so-called mini-, micro-, nano-,…
Technologies de l'information — Classement international et comparaison de chaînes de caractère...
Le présent document définit ce qui suit.
— Une méthode de référence pour la comparaison de deux chaînes de caractères ayant pour but de déterminer leur ordre de classement dans une liste triée. La méthode s'applique à des chaînes utilisant le répertoire complet de l'ISO/IEC 10646, des sous-répertoires tels que ceux des divers jeux normalisés ISO/IEC à 8 bits ou tout autre jeu de…
Fans — Determination of fan sound power levels under standardized laboratory conditions — Part 4: So...
ISO 13347-4:2004 applies to industrial fans as defined in ISO 5801 and ISO 13349. It is limited to the determination of airborne sound emission for the specified set-ups. Vibration is not measured, nor is the sensitivity of airborne sound emission to vibration effects determined.
The sizes of the fan, which can be tested in accordance with ISO 13347-4:2004, are limited only by the practical…
