ISO 2447:1974

Fruit and vegetable products — Determination of tin

Produits dérivés des fruits et légumes — Dosage de l'étain

Sadni in zelenjavni proizvodi - Določanje kositra

General Information

• Status: Withdrawn
• Publication Date: 31-Jan-1974
• Withdrawal Date: 31-Jan-1974
• ICS: 67.080.01 - Fruits, vegetables and derived products in general
• Technical Committee: ISO/TC 34/SC 3 - Fruits and vegetables and their derived products
• Drafting Committee: ISO/TC 34/SC 3 - Fruits and vegetables and their derived products
• Current Stage: 9599 - Withdrawal of International Standard
• Completion Date: 06-Aug-1998
• Ref Project: SIST ISO 2447:1995 - Fruit and vegetable products -- Determination of tin

Relations

• Revised: ISO 2447:1998 - Fruit and vegetable products — Determination of tin content
• Effective Date: 15-Apr-2008
• Revised: SIST ISO 2447:1998 - Fruit and vegetable products -- Determination of tin content
• Effective Date: 12-May-2008

Standards Content (Sample)

INTERNATIONAL STANDARD
INTERNATIONAL ORGANIZATION FOR STANUARDIZATION *MEXflYHAPOflHAJl OPrAHMSAUMR II0 CTAHnAPTM3AUHH *ORGANISATION INTERNATIONALE DE NORMALISATION
Fruit and vegetable products - Determination of tin
b
Produits dérivés des fruits et légumes - Dosage de l'étain
First edition - 1974-02-15
Ref. No. IS0 2447-1974 (E)
UDC 664.8 : 543.849 : 546.811
Descriptors : agricultural products, fruit products, vegetable products, chemical analysis, determination of content, tin, colorimetry.
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
International 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 2447 was drawn up by Technical Committee
ISO/TC 34, Agricultural food products, and circulated to the Member Bodies in
July 1971.
It has been approved by the Member Bodies of the following countries :
Australia Hungary Portugal
Brazil
India South Africa, Rep. of
Bulgaria Iran Spain
Chile Israel Thai land
Egypt, Arab Rep. of Korea, Dem. P. Rep. of Turkey
Fin land Netherlands United Kingdom
France Poland
This International Standard has also been approved by the Association of Official
Analytical Chemists (AOAC).
The Member Body of the following country expressed disapproval of the document
on technical grounds :
Czechoslovakia
O International Organization for Standardization, 1974
Printed in Switzerland

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INTERNATIONAL STANDARD IS0 2447-1974 (E)
Fruit and vegetable products - Determination of tin
1
SCOPE AND FIELD OF APPLICATION 4.4 Polyvinyl alcohol, 16 g/I solution.
This International Standard specifies a method for the Dissolve 1.6 g of polyvinyl alcohol in a little water with
determination of tin in fruit and vegetable products. gentle warmingand agitation. Dilute to 100 ml after cooling.
The method is applicable to products which may contain,
4.5 Buffer solution, containing 450 g of sodium acetate
per kilogram, up to :
(CH3COONa) and 240ml of acetic acid (CH3COOH) per
litre.
- 1,25 g of copper;
t
- 0,6 g of lead; 4.6 Tin, standard volumetric solution, containing
500 pglrnl in a sulphuric acid medium, approximately 6 N.
- 0.6 g of zinc;
Dissolve, with heating, 0.5 g of pure tin in a mixture of
- 40 g of phosphorus.
50 ml of sulphuric acid (4.11, 5 ml of nitric acid, pz0
1,42 g/ml, and 25 ml of water. After complete solution,
oxidize the tin to the stannic form by boiling until white
2 REFERENCE
fumes appear.
IS0 . . ., Fruit and vegetable products - Wet method for
Cool the solution and pour it into a 1 O00 ml volumetric
the destruction of organic matter. 1)
flask containing 116 ml of sulphuric acid (4.1) and 100 ml
of water. Cool and dilute to 1 O00 ml with water.
4.7 Tin, standard volumetric solution containing 10 pglml
3 PRINCIPLE
in a sulphuric acid medium, approximately 0,5 N.
After destruction of the organic matter by means of
Transfer 20 ml of the tin standard volumetric solution (4.6)
sulphuric and nitric acids, and conversion of the tin to the
to a 1 O00 ml volumetric flask Add 10 ml of sulphuric acid
stannic form, formation of a complex in a buffered solution
(4.1) and dilute to 1 O00 ml with water.
of pH 1,0 to 1.2 (the iron(ll1) being masked, if necessary,
by reduction with ascorbic acid), the complex being
4.8 Phenylfluorone reagent (2, 6, 7-trihydroxy-9-pheny1-3-
coloured orange with phenylfluorone and the colour
isoxanthone).
compared with those obtained in the same conditions but
Dissolve 0,l g of phenylfluorone in 10 ml of methanol and
starting from standard solutions of pure tin.
1 ml of concentrated hydrochloric acid, pz0 1.19 g/ml, in a
500 ml volumetric flask. Dilute to the mark with 95%
(VIVI ethanol. The reagent shall be stored in a brown
4 REAGENTS
bottle in the dark. It is recommended that it should not be
...

SLOVENSKI STANDARD
SIST ISO 2447:1995
01-marec-1995
6DGQLLQ]HOHQMDYQLSURL]YRGL'RORþDQMHNRVLWUD
Fruit and vegetable products -- Determination of tin
Produits dérivés des fruits et légumes -- Dosage de l'étain
Ta slovenski standard je istoveten z: ISO 2447:1974
ICS:
67.080.01 Sadje, zelenjava in njuni Fruits, vegetables and
proizvodi na splošno derived products in general
SIST ISO 2447:1995 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ISO 2447:1995

---------------------- Page: 2 ----------------------

SIST ISO 2447:1995
INTERNATIONAL STANDARD
INTERNATIONAL ORGANIZATION FOR STANUARDIZATION *MEXflYHAPOflHAJl OPrAHMSAUMR II0 CTAHnAPTM3AUHH *ORGANISATION INTERNATIONALE DE NORMALISATION
Fruit and vegetable products - Determination of tin
b
Produits dérivés des fruits et légumes - Dosage de l'étain
First edition - 1974-02-15
Ref. No. IS0 2447-1974 (E)
UDC 664.8 : 543.849 : 546.811
Descriptors : agricultural products, fruit products, vegetable products, chemical analysis, determination of content, tin, colorimetry.
Price based on 2 pages

---------------------- Page: 3 ----------------------

SIST ISO 2447:1995
FOREWORD
IS0 (the International Organization for Standardization) is a worldwide federation
of national standards institutes (IS0 Member Bodies). The work of developing
International 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 2447 was drawn up by Technical Committee
ISO/TC 34, Agricultural food products, and circulated to the Member Bodies in
July 1971.
It has been approved by the Member Bodies of the following countries :
Australia Hungary Portugal
Brazil
India South Africa, Rep. of
Bulgaria Iran Spain
Chile Israel Thai land
Egypt, Arab Rep. of Korea, Dem. P. Rep. of Turkey
Fin land Netherlands United Kingdom
France Poland
This International Standard has also been approved by the Association of Official
Analytical Chemists (AOAC).
The Member Body of the following country expressed disapproval of the document
on technical grounds :
Czechoslovakia
O International Organization for Standardization, 1974
Printed in Switzerland

---------------------- Page: 4 ----------------------

SIST ISO 2447:1995
INTERNATIONAL STANDARD IS0 2447-1974 (E)
Fruit and vegetable products - Determination of tin
1
SCOPE AND FIELD OF APPLICATION 4.4 Polyvinyl alcohol, 16 g/I solution.
This International Standard specifies a method for the Dissolve 1.6 g of polyvinyl alcohol in a little water with
determination of tin in fruit and vegetable products. gentle warmingand agitation. Dilute to 100 ml after cooling.
The method is applicable to products which may contain,
4.5 Buffer solution, containing 450 g of sodium acetate
per kilogram, up to :
(CH3COONa) and 240ml of acetic acid (CH3COOH) per
litre.
- 1,25 g of copper;
t
- 0,6 g of lead; 4.6 Tin, standard volumetric solution, containing
500 pglrnl in a sulphuric acid medium, approximately 6 N.
- 0.6 g of zinc;
Dissolve, with heating, 0.5 g of pure tin in a mixture of
- 40 g of phosphorus.
50 ml of sulphuric acid (4.11, 5 ml of nitric acid, pz0
1,42 g/ml, and 25 ml of water. After complete solution,
oxidize the tin to the stannic form by boiling until white
2 REFERENCE
fumes appear.
IS0 . . ., Fruit and vegetable products - Wet method for
Cool the solution and pour it into a 1 O00 ml volumetric
the destruction of organic matter. 1)
flask containing 116 ml of sulphuric acid (4.1) and 100 ml
of water. Cool and dilute to 1 O00 ml with water.
4.7 Tin, standard volumetric solution containing 10 pglml
3 PRINCIPLE
in a sulphuric acid medium, approximately 0,5 N.
After destruction of the organic matter by means of
Transfer 20 ml of the tin standard volumetric solution (4.6)
sulphuric and nitric acids, and conversion of the tin to the
to a 1 O00 ml volumetric flask Add 10 ml of sulphuric acid
stannic form, formation of a complex in a buffered solution
(4.1) and dilute to 1 O00 ml with water.
of pH 1,0 to 1.2 (the iron(ll1) being masked, if necessary,
by reduction with ascorbic acid), the complex being
4.8 Phenylfluorone reagent (2, 6, 7-trihydroxy-9-pheny1-3-
coloured orange with phenylfluorone and the colour
isoxanthone).
compared with those obtained in the same conditions but
Dis
...

-\
NORME INTERNATIONALE @ 2447
‘*!e
-.
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION .MEjKflYHAPOLIHAR OPrAHM3AUMR Il0 CTAHLIAPTM3AUMM .ORGANISATION INTERNATIONALE DE NORMALISATION
Produits dérivés des fruits et legumes -- ‘étain -J
I
L
Fruit and vegetable products - Determination of tin
Première édition - 1974-02-1 5
.- - -
< L/
._-I
CDU 664.8 : 543.849 : 546.811 Réf. NO IS0 2447-1974$( F)
Descripteurs : produit agricole, produit dérivé de fruits, produit dérivé de légumes, analyse chimique, dosage, étain, colorimétrie.
Prix basé sur 2 pages

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AVANT-PROPOS
IS0 (Organisation Internationale de Normalisation) est une fédération mondiale
d'organismes nationaux de normalisation (Comités Membres ISO). L'élaboration de
Normes Internationales est confiée aux Comités Techniques ISO. Chaque Comité
Membre intéressé par une étude a le droit de faire partie du Comité Technique
correspondant. Les organisations internationales, gouvernementales et non
gouvernementales, 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 Internationales par le Conseil de I'ISO.
La Norme Internationale IS0 2447 a été établie par le Comité Technique
lSO/TC 34, Produits agricoles alimentaires, et soumise aux Comités Membres en
juillet 1971.
Elle a été approuvée par les Comités Membres des pays suivants :
Afrique du Sud, Rép. d' Espagne Pays-Bas
Australie F in I a nde Pologne
Brésil France Portugal
Hongrie Royaume-U ni
Bulgarie
Inde Thaï lande
Chili
Corée, Rép. dém. p. de Iran Turquie
Egypte, Rép. arabe d'
Israël
Cette Norme Internationale a également été approuvée par l'Association of Official
Analytical Chemists (AOAC).
Le Comité Membre du pays suivant a désapprouvé le document pour des raisons
techniques :
Tchécoslovaquie
organisation Internationale de Normalisation, 1974 O
O
Imprimé en Suisse

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NORME INTERNATIONALE IS0 2447-1974 (F)
Produits derives des fruits et legumes - hbqwddetain
1 OBJET ET DOMAINE D'APPLICATION 4.4 Alcool polyvinylique, solution à 16 g/I.
La présente Norme Internationale spécifie une méthode de Dissoudre 1,6 g d'alcool polyvinylique dans un peu d'eau
et en agitant. Diluer à 1 O0 ml après
-étain &I& produits dérivés des fruits et en chauffant doucement
Iégu mes.
refroidissement. /k pH ::,y
&d(t)vrntnailTm JL Ir Sii em
La méthode est applicable à des produits pouvant contenir,
4.5 Solution tarnpon,kcontenant 450 g d'acétate de
par kilogramme, jusqu'à
sodium (CH,COONa) et 240 ml d'acide acétique
'L
(CH,COOH) par litre.
- 1,251 g de cuivre;
- 0,6 g de plomb; 4.6 Étain, olution étalo à 500 /ml en milieu sulfurique
environ 6 N. a8
- 0,6 g de zinc;
e9
Dissoudre à chaud 0.5 g d'étain pur par 50 ml d'acide
i - 40 g de phosphore.
sulfurique (4.1) et 5 ml d'acide nitrique, pz0 1.42 g/ml,
additionnés de 25 ml d'eau. Après dissolution complète,
à l'état stannique par ébullition jusqu'à
oxyder l'étain
apparition de fumées blanches.
-
its dérivés
et verser dans une fiole jaugée de 1 O00 ml
Refroidir
'
"#L P-L.
contenant déjà 116 ml d'acide sulfurique (4.1) et 100 ml
d'eau. Refroidir et compléter à 1 O00 ml avec de l'eau.
/mi en milieu
Après destruction sulfonitrique de la matière organique et
transformation de l'étain à l'état stannique, formation, en
Introduire 20 ml de la solution étalon d'étain (4.6) dans
milieu tamponné de pH compris entre 1.0 et 1.2, @ fer(lll)
une fiole jaugée de 1 O00 ml. Ajouter 10 ml d'acide
étant, si nécessaire, masqué par réduction par l'acide
sulfurique (4.1) et compléter à 1 O00 ml avec de l'eau.
' ascorbiqud, d'un complexe coloré orangé avec la
phénylfluorone, et comparaison de la couleur avec celles
4.8 Réactif à la phénylfluorone (trihydroxy 2-6-7
obtenues dans les mêmes conditions à partir de solutions
phény 1-9 isoxanthone-3).
étalons d'étain pur.
Dans une fiole jaugée de 500 ml, dissoudre 0.1 g de
10 ml de méthanol et 1 ml d'acide
phénylfluorone dans
chlorhydrique concentréLp20 1,19 g/ml. Compléter a
4 REACTIFS
500 ml avec de l'éthanol à 95 % (V/V). Le réactif doit être
Tous les réactifs utilisés doivent être de qualité analytique
conservé à l'obscurité dans un flacon de couleur brune. II
reconnue et l'eau utilisée doit être de l'eau distillée ou de
est r
...