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prEN 933-9

Tests for geometrical properties of aggregates - Part 9: Assessment of fines - Methylene blue test

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Kavand
Alusdokumendid
prEN 933-9
Direktiivid või määrused
puuduvad
Standardi ajalugu
Staatus
Kuupäev
Tüüp
Nimetus
Põhitekst
01.03.2019
Parandus
06.05.2013
Põhitekst + muudatus
This document specifies the reference method used for type testing and in cases of dispute, for the determination of the methylene blue value of the 0/2 mm fraction in fine aggregates or all-in aggregates (MB). It also specifies the reference method for the determination of the methylene blue value of the 0/0,125 mm fraction (MBF) in Annex A. Other methods can be used for other purposes, such as factory production control, provided that an appropriate working relationship with the suitable reference method has been established. A conformity check, adding a single quantity of dye solution equivalent to a specified limiting value and which can be used as part of a production control process, is described in informative Annex B. Annex C specifies the preparation of 10 g/l methylene blue solution and Annex D specifies the procedure for the determination of the methylene blue value of kaolinite (MBk). Annexes C and D are normative. An example of a test data sheet is given in informative Annex E. WARNING - The use of this part of EN 933 can involve hazardous materials, operations and equipment (such as dust, noise and heavy lifts). It does not purport to address all of the safety or environmental problems associated with its use. It is the responsibility of users of this document to take appropriate measures to ensure the safety and health of personnel and the environment prior to application of the standard, and fulfil statutory and regulatory requirements for this purpose.
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prEN 932-3

Tests for general properties of aggregates - Part 3: Procedure and terminology for simplified petrographic description
Uusim versioon Kavand