Coke -- Determination of total moisture content

Coke -- Détermination de l'humidité totale

Koks - Določevanje celotne vlage

General Information

Status
Replaced
Publication Date
31-Oct-1981
Withdrawal Date
31-Oct-1981
Technical Committee
Drafting Committee
Current Stage
6060 - International Standard published
Completion Date
01-Nov-1981

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ISO 579:1981 - Coke -- Determination of total moisture content
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International Standard

INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONWE~YHAPO~HAR OPrAHM3AUMR l-l0 CTAH~PTW3AL(lWWORGANlSATlON INTERNATIONALE DE NORMALISATION

Coke - Determination of total moisture content
Coke - D&termination de / ‘humidit& to tale
Second edition - ~1981-11-01
UDC 662.749.2 : 543.812.2
Ref. No. 60579-1981 (E)

Descriptors : coke, chemical analysis, determination of content, moisture content, tests, physical tests.

Price based on 2 pages
---------------------- Page: 1 ----------------------
Foreword

IS0 (the International Organization for Standardization) is a worldwide federation of

national standards institutes (IS0 member bodies). The work of developing Inter-
national Standards is carried out through IS0 technical committees. Every member

body interested in a subject for which a technical committee has been set up has the

right to be represented on that committee. International organizations, governmental

and non-governmental, in liaison with ISO, also take part in the work.

Draft International Standards adopted by the technical committees are circulated to

the member bodies for approval before their acceptance as International Standards by

the IS0 Council.
International Standard IS0 579 was developed by Technical Committee ISO/TC 27,
Solid mineral fuels.

This second edition was submitted directly to the IS0 Council, in accordance with

clause 5.10.1 of part 1 of the Directives for the technical work of ISO. It cancels and

replaces the first edition (i.e. IS0 579-19741, which had been approved by the member

bodies of the following countries :
Australia Denmark Philippines
Egypt, Arab Rep. of Poland
Austria
Belgium France Romania
Brazil Germany, F. R. Switzerland
India
Canada Turkey
Chile Italy United Kingdom
Colombia Korea, Rep. of USA
Czechoslovakia New Zealand USSR
The member body of the following country had expressed disapproval of the docu-
men t on technical grounds :
South Africa, Rep. of
0 International Organization for Standardization, 1981
Printed in Switzerland
---------------------- Page: 2 ----------------------
IS0 579-1981 (E)
INTERNATIONAL STANDARD
Determination of total moisture content
Coke -
6 Procedure
1 Scope and field of application

This International Standard specifies a method for determining Weigh, to the nearest 0,l %, the sample and container as

received (see clause 5). Weigh the dry, empty tray (4.2),
the total moisture content of coke.
transfer the sample as completely as possible to the tray and
spread evenly. Place the charged tray in the oven (4.1) at a
temperature of 200 OC (see 9.1). Dry the wet container with any
2 Reference
sample adhering to it by warming, transfer the remaining sam-
ple to the tray and weigh the dry, empty container (see 9.5).
IS0 2309, Coke - Sampling.
Heat the tray and its contents until constant mass is obtained
(see 9.61, weighing the tray hot to avoid absorption of moisture
3 Principle during cooling.
A sample is heated in air at 200 OC (see 9.1) and maintained at
this temperature until constant mass is obtained. The percen-
tage moisture content is calculated from the loss in mass of the
7 Expression of results
sample. Coke is not liable to oxidation under the conditions
stated.
The moisture content Mof the coke as analysed, expressed as
a percentage by mass, is given by the formula
4 Apparatus
- ma) - (q - m2)
(ml
x loo
- mq)
4.1 Air oven, capable of maintaining a substantially uniform (Ml
temperature zone at 200 OC (see 9.1) and in which the rate of
where
atmosphere change is sufficiently rapid for the test (see 9.2).
ml is the mass, in grams, of the container plus sample as
4.2 Tray, approximately 0,l m2 in area and 25 mm deep,
received;
made of non-corrodible material such as stainless steel, tinned
steel or aluminium.
1722 is the mass, in grams, of the dry, empty tray;

4.3 Balance, accurate to 1 g (see 9.3). m3 is the mass, in grams, of the tray plus sample after

heating;
m4 i
...

SLOVENSKI STANDARD
SIST ISO 579:1998
01-februar-1998
.RNV'RORþHYDQMHFHORWQHYODJH
Coke -- Determination of total moisture content
Coke -- Détermination de l'humidité totale
Ta slovenski standard je istoveten z: ISO 579:1981
ICS:
75.160.10 Trda goriva Solid fuels
SIST ISO 579:1998 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST ISO 579:1998
---------------------- Page: 2 ----------------------
SIST ISO 579:1998
International Standard

INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONWE~YHAPO~HAR OPrAHM3AUMR l-l0 CTAH~PTW3AL(lWWORGANlSATlON INTERNATIONALE DE NORMALISATION

Coke - Determination of total moisture content
Coke - D&termination de / ‘humidit& to tale
Second edition - ~1981-11-01
UDC 662.749.2 : 543.812.2
Ref. No. 60579-1981 (E)

Descriptors : coke, chemical analysis, determination of content, moisture content, tests, physical tests.

Price based on 2 pages
---------------------- Page: 3 ----------------------
SIST ISO 579:1998
Foreword

IS0 (the International Organization for Standardization) is a worldwide federation of

national standards institutes (IS0 member bodies). The work of developing Inter-
national Standards is carried out through IS0 technical committees. Every member

body interested in a subject for which a technical committee has been set up has the

right to be represented on that committee. International organizations, governmental

and non-governmental, in liaison with ISO, also take part in the work.

Draft International Standards adopted by the technical committees are circulated to

the member bodies for approval before their acceptance as International Standards by

the IS0 Council.
International Standard IS0 579 was developed by Technical Committee ISO/TC 27,
Solid mineral fuels.

This second edition was submitted directly to the IS0 Council, in accordance with

clause 5.10.1 of part 1 of the Directives for the technical work of ISO. It cancels and

replaces the first edition (i.e. IS0 579-19741, which had been approved by the member

bodies of the following countries :
Australia Denmark Philippines
Egypt, Arab Rep. of Poland
Austria
Belgium France Romania
Brazil Germany, F. R. Switzerland
India
Canada Turkey
Chile Italy United Kingdom
Colombia Korea, Rep. of USA
Czechoslovakia New Zealand USSR
The member body of the following country had expressed disapproval of the docu-
men t on technical grounds :
South Africa, Rep. of
0 International Organization for Standardization, 1981
Printed in Switzerland
---------------------- Page: 4 ----------------------
SIST ISO 579:1998
IS0 579-1981 (E)
INTERNATIONAL STANDARD
Determination of total moisture content
Coke -
6 Procedure
1 Scope and field of application

This International Standard specifies a method for determining Weigh, to the nearest 0,l %, the sample and container as

received (see clause 5). Weigh the dry, empty tray (4.2),
the total moisture content of coke.
transfer the sample as completely as possible to the tray and
spread evenly. Place the charged tray in the oven (4.1) at a
temperature of 200 OC (see 9.1). Dry the wet container with any
2 Reference
sample adhering to it by warming, transfer the remaining sam-
ple to the tray and weigh the dry, empty container (see 9.5).
IS0 2309, Coke - Sampling.
Heat the tray and its contents until constant mass is obtained
(see 9.61, weighing the tray hot to avoid absorption of moisture
3 Principle during cooling.
A sample is heated in air at 200 OC (see 9.1) and maintained at
this temperature until constant mass is obtained. The percen-
tage moisture content is calculated from the loss in mass of the
7 Expression of results
sample. Coke is not liable to oxidation under the conditions
stated.
The moisture content Mof the coke as analysed, expressed as
a percentage by mass, is given by the formula
4 Apparatus
- ma) - (q - m2)
(ml
x loo
- mq)
4.1 Air oven, capable of maintaining a substantially uniform (Ml
temperature zone at 200 OC (see 9.1) and in which the rate of
where
atmosphere change is sufficiently rapid for the test (see 9.2).
ml is the mass, in grams, of the container plus sample as
4.2 Tray, approximately 0,l m2 i
...

Norme internationale 579

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION*ME~YHAPOAHAR OPrAHM3AUHR fl0 CTAHAAPTH3AUHM*ORGANlSATlON INTERNATIONALE DE NORMALISATION

Coke - Détermination de l'humidité totale
Coke - Determination of total moisture content
Deuxieme édition - 1981-11-01
- CDU 662.749.2 : 543.812.2 Réf. no : IS0 579-1981 (FI

Descripteurs : coke, analyse chimique, dosage, teneur en eau, essai, essai physique.

Prix bas6 sur 2 pages
---------------------- Page: 1 ----------------------
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fédération mondiale

d’organismes nationaux de normalisation (comités membres de I‘ISO). L’élaboration

des Normes internationales est confiée aux comités techniques de I‘ISO. Chaque

comité membre intéressé par une étude a le droit de faire partie du comité technique

correspondant. Les organisations internationales, gouvernementales et non gouverne-

mentales, en liaison avec I’ISO, participent également aux travaux.

Les projets de Normes internationales adoptés par les comités techniques sont soumis

aux comités membres pour approbation, avant leur acceptation comme Normes inter-
nationales par le Conseil de I’ISO.

La Norme internationale IS0 579 a été élaborée par le comité technique ISO/TC 27,

Combustibles mineraux solides.

Cette deuxième édition fut soumise directement au Conseil de I‘ISO, conformément au

paragraphe 5.10.1 de la partie 1 des Directives pour les travaux techniques de I’ISO.

Elle annule et remplace la première édition (IS0 579-1974), qui avait été approuvée par

les comités membres des pays suivants :
Allemagne, R. F. CorBe, Rép. de Pologne
Australie Danemark Roumanie
Égypte, Rép. arabe d’ Royaume- Uni
Autriche
Belgique France Suisse
Brésil Inde Tchécoslovaquie
Canada Italie Turquie
Chili Nouvelle-Zélande URSS
Colombie Phi I i ppi nes USA

Le comité membre du pays suivant l’avait désapprouvée pour des raisons techniques :

Afrique du Sud, Rép. d’
0 Organisation internationale de normalisation, 1981 O
lrnorirnb en Suisse
---------------------- Page: 2 ----------------------
NORME INTERNATIONALE IS0 579-1981 (F)
Coke - Détermination de l’humidité totale
6 Mode opératoire
1 Objet et domaine d‘application
Peser, à 0,l % près, I‘échantillon et son récipient tels quels
La présente Norme internationale spécifie une méthode de
(voir chapitre 5). Peser un plateau (4.2) vide et sec, y verser
détermination de l’humidité totale du coke.
I‘échantillon aussi complètement que possible, et répartir celui-
ci uniformément. Placer le plateau chargé dans I’étuve (4.1) à
une température de 200 OC (voir 9.1). Sécher le récipient
2 Référence
mouillé avec tout le coke qui y adhère en le chauffant, puis ver-
ser le reste de I’échantillon sur le plateau et peser le récipient
IS0 2309, Coke - Echantillonnage.
sec et vide (voir 9.5). Chauffer le plateau et son contenu jusqu’à
l’obtention d’une masse constante (voir 9.61, en prenant soin
de peser le plateau à chaud afin de parerà l’absorption d‘humi-
3 Principe
dité en cours de refroidissement.
L’échantillon est chauffé jusqu’à l‘obtention d’une masse cons-
tante dans l’air à 200 OC. Le pourcentage d’humidité est calculé
à partir de la perte de masse de I‘échantillon. Le coke n‘est pas
7 Expression des résultats
sujet à oxydation dans les conditions de cette détermination.
L’humidité, M, du coke analysé, exprimée en pourcentage en
masse, est donnée par la formule
4 Appareillage
(m, - m4) - (m3 - m2)
4.1 Étuve B air, permettant de disposer d‘une zone de tem-
x 100
(ml - m4)
pérature sensiblement uniforme à 200 OC (voir 9.11, et dont le
rythme de renouvellement de l’atmosphère soit suffisamment
rapide pour l’essai (voir 9.2).
ml est la masse, en grammes, de I’échantillon et de son
4.2 Plateau, d’environ 0,l m2 de superficie et 25 mm de
récipient tels quels:
profondeur, en matière inattaquable, telle que l’acier inoxyda-
ble, l‘acier étarné ou l’aluminium.
m2 est la masse, en grammes, du plateau vide et sec;
4.3 Balance, précise à 1 g (voir 9.3).
m3 est la masse, en grammes, du plateau et de I‘échantil-
Ion après chauffage;
5 Échantillon
m4 est la masse, en grammes, du récipient sec et vide.

L‘échantillon, préparé selon les regles prescrites dans Si I’échantillon a été séché à l’air au cours de

...

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