BS ISO 3529-2:2020 pdf free.Vacuum technology一- Vocabulary Vacuum pumps and related terms.
BS ISO 3529-2 This document gives definitions of vacuum pumps and related terms. It is a continuation of ISO 3529-I which defines general terms used in vacuum technology.2 Normative references ISO 3529-1:2019, Vacum technology一Vocabulary 一Part 1: General terms ISO 21360-1:2012, Vacum technology一Standard methods for measuring vacuwm-pump performance一Part 1: General description 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the fllowing addresses:ISO Online browsing platform: available at hts://ww.iso.org/obpIEC Electropedia: available at http://www.electropedia.org/3.1 Vacuum pumps 3.1.1 vacum pumpdevice for creating, improving and/or maintaining a vacuum Note 1 to entry: Two basically distint categories may be considered: gas transfer pumps (3.1.2) and gas gathering vacuum pumps (3.132) Note 2 to entry: Some definitions given in ISO 3529-1 are repeated in this document in deferent terms to adapt to vacuum pumps. Note 3 to entry: Vacuum Is defined in IS0 3529-1. Note 4 to entry: A classification table for vacuum pumps is described in Annex A. 3.1.2 gas transfer vacuum pumps vacuum pump (3.1.1) that transports gas molecules from the inlet to the outlet (3.2.3) of the vacuum pump by means of positive displacement or transfer of kinetic momentum.claw vacuwm pump rotary positive displacement vacuum pump (3.1.3) in which two claw-shaped rotors, interlocked and synchronized, rotate in opposite directions moving past each other and the housing wall with a small clearance and without touching Note 1 to entry: Claw vacuum pumps are designed with one or more compression stages.3.1.17kinetic vacum pump vacuum pump (3.11) in which a gas or gas molecules can be displaced from the pump inlet to the outlet (3.2.3) either mechanically (rotating it at high speed or by providing an impulse in the direction of flow) or by the use of another fluid (providing also an impulse in the direction of flow) or using an electrical potential to displace gas ions Note 1 to entry: Three categories can be considered: mechanical kinetic pumps (3.118 3..22) fluid entrainment pumps (3.1.23-3.1.30) and ion tronsfer pumps (3.1.31]. BS ISO 3529-2 pdf download.