EN 13639:2017
(Main)Determination of total organic carbon in limestone
Determination of total organic carbon in limestone
This European Standard specifies methods for the determination of the total organic carbon content (TOC) in limestone.
The standard describes the reference method and alternative methods which can be considered to be equivalent.
In the case of a dispute, only the reference method is used.
Any other methods may be used provided they are calibrated, either against the reference method or against internationally accepted reference materials, in order to demonstrate their equivalence.
Bestimmung des Gesamtgehalts an organischem Kohlenstoff in Kalkstein
Diese Europäische Norm legt Verfahren für die Bestimmung des Gesamtgehalts an organischem Kohlenstoff (TOC, en: total organic carbon) in Kalkstein fest.
ANMERKUNG Dieses Verfahren behandelt die Bestimmung von TOC < 1 %.
Diese Norm beschreibt das Referenzverfahren und Alternativverfahren, die als gleichwertig betrachtet werden können.
Determination du carbone organique total dans le calcaire
La présente Norme européenne spécifie les méthodes de détermination de la teneur en carbone organique total (COT) du calcaire.
NOTE Cette méthode couvre la détermination de la COT < 1 %.
La norme décrit la méthode de référence et les variantes qui peuvent être considérées comme équivalentes.
Določevanje celotnega organskega ogljika v apnencu
Ta evropski standard določa metode za določevanje celotnega organskega ogljika (TOC) v apnencu.
V tem standardu so opisane referenčna metoda in alternativne metode, ki se lahko obravnavajo kot enakovredne.
V primeru spora se uporabi le referenčna metoda.
Uporabijo se lahko tudi druge metode, če so umerjene glede na referenčno metodo ali mednarodno sprejete referenčne materiale, s čimer se dokaže njihova enakovrednost.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Bestimmung des Gesamtgehalts an organishchem Kohlenstoff in KalksteinDetermination du carbone organique total dans le calcaireDetermination of total organic carbon in limestone91.100.10Cement. Mavec. Apno. MaltaCement. Gypsum. Lime. MortarICS:Ta slovenski standard je istoveten z:EN 13639:2017SIST EN 13639:2017en01-december-2017SIST EN 13639:2017SLOVENSKI
STANDARDSIST EN 13639:2004/AC:2004SIST EN 13639:20041DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13639
September
t r s y ICS
{ sä s r rä s r Supersedes EN
s u x u {ã t r r tEnglish Version
Determination of total organic carbon in limestone Determination du carbone organique total dans le calcaire
Bestimmung des Gesamtgehalts an organischem Kohlenstoff in Kalkstein This European Standard was approved by CEN on
t x June
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s u x u {ã t r s y ESIST EN 13639:2017
European foreword . 4 1 Scope . 5 2 Normative references . 5 3 General requirements for testing . 5 3.1 Number of tests . 5 3.2 General statistical terms . 5 3.3 Expression of masses and results . 6 3.4 Blank determinations . 6 3.5 Sampling and sampling preparation . 6 3.6 General test principles . 6 4 Reagents . 7 5 General apparatus . 9 5.1 Balances . 9 5.2 Laboratory ovens . 9 5.3 Crucibles . 10 6 Gravimetric method with wet oxidation (reference method) . 10 6.1 Principle . 10 6.2 Apparatus . 10 6.3 Procedure. 11 6.4 Calculation . 12 7 Gravimetric method with furnace oxidation (alternative method No. 1) . 12 7.1 Principle . 12 7.2 Apparatus . 12 7.3 Procedure. 14 7.4 Calculation . 14 8 Infrared detection method with furnace oxidation (low temperature) (alternative method No. 2) . 15 8.1 Principle . 15 8.2 Apparatus . 15 8.3 Procedure. 17 8.4 Calculation . 18 9 Infrared detection or conductivity methods with furnace oxidation (high temperature): procedure A (alternative method No. 3) . 19 9.1 Principle . 19 9.2 Apparatus . 19 9.3 Procedure. 20 10 Infrared detection or conductivity methods with furnace oxidation (high temperature): procedure B (alternative method No. 4) . 21 10.1 Principle . 21 10.2 Apparatus . 21 10.3 Procedure. 21 SIST EN 13639:2017
Features of commercial HF (High Frequency) combustion/infrared carbon analyzers . 23 A.1 Combustion . 23 A.2 Infrared gas analyser . 24 Annex B (informative)
Assignment of reagents to methods . 25 Bibliography . 27
is the probability level f is the variability (number of degrees of freedom) DlDlxxk∆=1 is the relative uncertainty ∑=−=niixxxQ12)( is the number of calibration samples n number of test results p is the number of analyses of each calibration sample sxD is the standard deviation of the procedure t is the quantile of the t-distribution (f = n
xi is the analysed content assigned to a calibration sample x is the arithmetic mean of the contents assigned to all calibration samples xDl is the determination limit
¿xDl is half width of the two-side prognosis interval
NOTE This determination limit is based on DIN 32645 [2]. 3.3 Expression of masses and results Express masses in grams to an accuracy of ± 0,000 5 g. Express the results as a percentage to at least two decimal places, if the difference between the individual test results exceeds two times the repeatability standard deviation given in Clause 10, the test shall be repeated. 3.4 Blank determinations Carry out a blank determination without a sample following the same procedure and using the same amounts of reagents. Correct the results obtained f
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