BS EN 933-2:2020 pdf download

07-21-2021 comment

BS EN 933-2:2020 pdf download.Tests for geometrical properties of aggregates Part 2: Determination of particle size distribution – Test sieves, nominal size of apertures.
This document specifies the nominal size of apertures for test sieves used for determination of particle size of aggregates.
It applies to:
a) test sieves of perforated metal plate having square holes of size from 4 mm and up to 125 mm;
b) test sieves of metal wire cloth having aperture sizes below 4 mm down to 0,063 mm. 2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 33101, Test sieves- Technical requirements and testing – Part 1: Test sieves of metal wire cloth
ISO 3310-2, Test sieves – Technical requirements and testing – Part 2: Test sieves of perforated metal plate
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 following addresses:
• I EC Electropedia: available at http://www.electropedia.o r/
• ISO Online browsing platform: available at https://www.iso,org/obp
3.1 metal wire cloth
cloth of metal wires which cross each other to form square apertures of uniform size
3.2 perforated metal plate
metal plate with square holes of uniform size in a regular arrangement
4 Requirements for applicable test sieves
Test sieves with nominal aperture size of 4 mm and above shall have a perforated plate with square holes conforming to ISO 33 10-2. Test sieves with nominal aperture size below 4 mm shall have a metal wire cloth with apertures conforming to ISO 33 10-1.
5 Nominal size of apertures for applicable test sieves
Nominal size of apertures for applicable test sieves are specified in Table 1 They are taken from the series R 20 in ISO 565:1990.BS EN 933-2 pdf download.

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