prEN ISO 8840
(Main)Refractory materials - Determination of bulk density of granular materials (grain density) (ISO 8840:2021)
Refractory materials - Determination of bulk density of granular materials (grain density) (ISO 8840:2021)
As per ISO document i.e.
This document specifies three methods for the determination of the bulk density of granular
refractory materials (grain density) having a grain size larger than 2 mm:
— Method 1: mercury method with vacuum;
— Method 2: arrested water absorption method;
— Method 3: vacuum method with spin dryer option according to ISO 5017.
Method 1 is intended as the reference method.
NOTE Depending on the nature of the material tested, the three methods can give different results.
Any statement of the value of a bulk density can therefore be accompanied by an indication of the
method used or to be used in case of dispute.
The same method can be used for the determination of the volume of the sample, for selecting and
preparing the sample, for
calculating the bulk density and for presenting the test report.
Feuerfeste Erzeugnisse - Bestimmung der Rohdichte von körnigem Gut (Korndichte) (ISO 8840:2021)
Matériaux réfractaires - Détermination de la masse volumique apparente des matériaux en grains (masse volumique des grains) (ISO 8840:2021)
Ognjevzdržni materiali - Ugotavljanje prostorninske mase podrobljenih materialov (gostota zrn) (ISO 8840:2021)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN ISO 8840:2024
01-april-2024
Ognjevzdržni materiali - Ugotavljanje prostorninske mase podrobljenih materialov
(gostota zrn) (ISO 8840:2021)
Refractory materials - Determination of bulk density of granular materials (grain density)
(ISO 8840:2021)
Feuerfeste Erzeugnisse - Bestimmung der Rohdichte von körnigem Gut (Korndichte)
(ISO 8840:2021)
Matériaux réfractaires - Détermination de la masse volumique apparente des matériaux
en grains (masse volumique des grains) (ISO 8840:2021)
Ta slovenski standard je istoveten z: prEN ISO 8840
ICS:
81.080 Ognjevzdržni materiali Refractories
oSIST prEN ISO 8840:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 8840:2024
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oSIST prEN ISO 8840:2024
INTERNATIONAL ISO
STANDARD 8840
Second edition
2021-09
Refractory materials — Determination
of bulk density of granular materials
(grain density)
Matériaux réfractaires — Détermination de la masse volumique
apparente des matériaux en grains (masse volumique des grains)
Reference number
ISO 8840:2021(E)
©
ISO 2021
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oSIST prEN ISO 8840:2024
ISO 8840:2021(E)
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© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii © ISO 2021 – All rights reserved
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oSIST prEN ISO 8840:2024
ISO 8840:2021(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Sampling . 2
6 Preparation, number and test size of samples . 2
6.1 Preparation of samples . 2
6.2 Number of samples . 2
6.3 Mass of test samples . 2
7 Determination of mass of test sample . 2
8 Determination of volume of test sample — Method 1: Mercury method with vacuum .3
8.1 Principle . 3
8.2 Apparatus . 4
8.3 Determination of
...
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