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EN 933-9:2009

(Main)

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

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

This standard describes 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 describes the reference method for the determination of the methylene blue value of the 0/0,125 mm fraction (MBF) in Annex A. For other purposes, in particular factory production control, other methods may be used provided that an appropriate working relationship with the suitable reference method has been established.

Prüfverfahren für geometrische Eigenschaften von Gesteinskörnungen - Teil 9: Beurteilung von Feinanteilen-Methylenblau-Verfahren

Diese Norm legt das für die Erstprüfung und in Streitfällen anzuwendende Referenzverfahren für die Bestimmung
des Methylenblau-Werts für die Kornklasse 0/2 mm in feinen Gesteinskörnungen oder Korngemischen
fest. Ferner wird in Anhang A ein Referenzverfahren für die Bestimmung des Methylenblau-Werts für die
Kornklasse 0/0,125 mm (MBF) festgelegt. Für andere Zwecke, speziell im Rahmen der werkseigenen
Produktionskontrolle, dürfen andere Verfahren angewendet werden, sofern ein ausreichender
Zusammenhang zum Referenzverfahren nachgewiesen wurde.

Essais pour déterminer les caractéristiques géométriques des granulats - Partie 9 : Qualification des fines - Essai au bleu de méthylène

La présente norme décrit la méthode de référence utilisée pour les essais de type initial et, en cas de litige,
pour déterminer la valeur de bleu de méthylène de la fraction 0/2 mm dans les sables ou les graves (MB). Elle
décrit aussi la méthode de référence permettant de déterminer la valeur de bleu de méthylène de la
fraction 0/0,125 mm (MBF) dans l'Annexe A. Dans les autres cas, en particulier pour la maîtrise de la
production en usine, d’autres méthodes peuvent être utilisées sous réserve d’être en corrélation avec la
méthode de référence.

Preskusi geometričnih lastnosti agregatov - 9. del: Ugotavljanje finih delcev - Preskus z metilen modrim

General Information

Status
Withdrawn
Publication Date
07-Jul-2009
Withdrawal Date
02-Apr-2013
ICS
91.100.15 - Mineral materials and products
Technical Committee
CEN/TC 154 - Aggregates
Drafting Committee
CEN/TC 154/SC 6 - Test methods
Current Stage
9960 - Withdrawal effective - Withdrawal
Start Date
03-Apr-2013
Completion Date
03-Apr-2013
Ref Project
SIST EN 933-9:2009 - Tests for geometrical properties of aggregates - Part 9: Assessment of fines - Methylene blue test

Relations

Replaces
EN 933-9:1998 - Tests for geometrical properties of aggregates - Part 9: Assessment of fines - Methylene blue test
Effective Date
22-Dec-2008
Merged Into
EN 933-9:2009+A1:2013 - Tests for geometrical properties of aggregates - Part 9: Assessment of fines - Methylene blue test
Effective Date
23-Jan-2013
Amended By
EN 933-9:2009/FprA1:2012 - Tests for geometrical properties of aggregates - Part 9: Assessment of fines - Methylene blue test)
Effective Date
18-Jul-2012

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Prüfverfahren für geometrische Eigenschaften von Gesteinskörnungen - Teil 9: Beurteilung von Feinanteilen-Methylenblau-VerfahrenEssais pour déterminer les caractéristiques géométriques des granulats - Partie 9 : Qualification des fines - Essai au bleu de méthylèneTests for geometrical properties of aggregates - Part 9: Assessment of fines - Methylene blue test91.100.15Mineralni materiali in izdelkiMineral materials and productsICS:Ta slovenski standard je istoveten z:EN 933-9:2009SIST EN 933-9:2009en,fr,de01-oktober-2009SIST EN 933-9:2009SLOVENSKI
STANDARDSIST EN 933-9:19991DGRPHãþD

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 933-9July 2009ICS 91.100.15Supersedes EN 933-9:1998
English VersionTests for geometrical properties of aggregates - Part 9:Assessment of fines - Methylene blue testEssais pour déterminer les caractéristiques géométriquesdes granulats - Partie 9 : Qualification des fines - Essai aubleu de méthylènePrüfverfahren für geometrische Eigenschaften vonGesteinskörnungen - Teil 9: Beurteilung von Feinanteilen-Methylenblau-VerfahrenThis European Standard was approved by CEN on 12 June 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 933-9:2009: ESIST EN 933-9:2009

Procedure for the determination of the methylene blue value (MBF) of the 0/0,125 mm fraction . 9 Annex B (informative)
Test of conformity in relation to a specified MB value . 10 Annex C (normative)
Preparation of 10 g/l methylene blue solution . 11 Annex D (normative)
Procedure for the determination of the methylene blue value of kaolinite (MBK) . 13 Annex E (informative)
Example of a test data sheet . 14
M1
= M0 / (1+ W/100)” (1) 8 Procedure 8.1 Description of the stain test After each injection of dye, the stain test consists of taking a drop of suspension by means of the glass rod and depositing it on the filter paper. The stain which is formed is composed of a central deposit of material, of a generally solid blue colour, surrounded by a colourless wet zone. The amount of drop taken shall be such that the diameter of the deposit is between 8 mm and 12 mm. The test is deemed to be positive if, in the wet zone, a halo consisting of a persistent light blue ring of about 1 mm is formed around the central deposit. NOTE As the end-point is approached, the halo will appear, but can then disappear again, because the clay minerals can take some time to complete their adsorption of the dye. For this reason the end-point is confirmed by repeating the stain test at 1 min intervals for 5 min without adding more dye solution. 8.2 Preparation of suspension Place (500 ± 5) ml of distilled or demineralised water in the beaker and add the dried test portion stirring well with the spatula. Stir the dye solution (see 5.1) or alternatively mix it thoroughly. Fill the burette with dye solution and return the stock of dye solution to a dark place. Set the agitator to a speed of 600 min-1 and position the impeller
...

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