ISO 6670:2002

Instant coffee - Sampling method for bulk units with liners

This International Standard specifies a method of sampling a consignment of instant coffee, shipped in ten units or more, for the purpose of examination to determine whether the consignment complies with a contract specification. The cases used have inner linings of moisture-resistant material, hermetically sealed because of the hygroscopic nature of instant coffee, and are in units greater than 10 kg net mass, typically up to 50 kg. This method is also applicable to units of more than 50 kg, usually named as big bags or supersacks. The cases are generally made of cardboard of appropriate strength and the big bags are made of suitable plastic material. The method may also be used for the selection and preparation of a sufficiently representative sample of the consignment, intended to serve as a basis for an offer for sale, for examination to verify that the instant coffee to be offered for sale satisfies the producer's sales specification, for examination to determine one or more of the characteristics of the instant coffee for technical, commercial, administrative and arbitration purposes, and for retention as a reference sample for use, if required, in litigation. This International Standard is applicable to spray dried powder and freeze dried instant coffees only, due to the intrinsic fragility of particles of agglomerated instant coffee, which leads to greater breakdown and headspace in the final packed units for the consumer.

Café soluble — Méthode d'échantillonnage pour emballages en vrac avec doublure

La présente Norme internationale spécifie une méthode d'échantillonnage d'une livraison de café soluble de dix emballages ou plus, en vue de permettre l'examen de la conformité de cette livraison avec les spécifications d'un contrat. Les caisses utilisées sont dotées de doublures intérieures fabriquées en un matériau résistant à l'humidité et fermées hermétiquement en raison de la nature hygroscopique du café soluble. Elles ont chacune une masse nette supérieure à 10 kg jusqu'à 50 kg, en général. Il est également possible d'utiliser des emballages unitaires de plus de 50 kg, que l'on dénomme couramment «grands sacs» ou «super-sacs». Les caisses sont généralement en carton de résistance appropriée et les grands sacs sont fabriqués en un matériau plastique adéquat. La méthode peut également être utilisée pour la sélection et la préparation d'un échantillon suffisamment représentatif de la livraison, destiné à servir de base pour une offre de vente; à vérifier que le café soluble offert à la vente répond aux spécifications de vente du producteur; à déterminer une ou plusieurs caractéristiques du café soluble pour des besoins techniques, commerciaux, administratifs et d'arbitrage; à servir d'échantillon de référence exigé éventuellement en cas de litige. La présente Norme internationale est applicable uniquement aux cafés solubles atomisé et lyophilisé, en raison de la fragilité intrinsèque des particules du café soluble aggloméré qui entraîne de plus grands défauts et un plus grand espace libre dans les emballages destinés au consommateur final.

Instant kava - Metoda vzorčenja za razsuti tovor

General Information

• Status: Published
• Publication Date: 17-Jul-2002
• ICS: 67.140.20 - Coffee and coffee substitutes
• Technical Committee: ISO/TC 34/SC 15 - Coffee
• Drafting Committee: ISO/TC 34/SC 15 - Coffee
• Current Stage: 9599 - Withdrawal of International Standard
• Start Date: 19-Dec-2025
• Completion Date: 27-Dec-2025
• Ref Project: SIST ISO 6670:2003 - Instant coffee -- Sampling method for bulk units with liners

Relations

• Revised: ISO 6670:2025 - Instant coffee - Sampling method for bulk units with liners
• Effective Date: 21-Oct-2023
• Revised: SIST ISO 6670:1995 - Instant coffee in cases with liners -- Sampling
• Effective Date: 12-May-2008
• Revises: ISO 6670:1983 - Instant coffee in cases with liners - Sampling
• Effective Date: 15-Apr-2008

Overview

ISO 6670:2002 is an international standard that defines the sampling method for bulk units of instant coffee with liners. It specifically addresses consignments shipped in units of ten or more, with packaging designed to protect the coffee from moisture and contamination. The standard applies mainly to spray-dried and freeze-dried instant coffee packaged typically in 10 to 50 kg net mass units, including larger bulk formats like big bags or supersacks.

The purpose of ISO 6670:2002 is to provide a reliable, repeatable procedure for sampling instant coffee consignments to:

• Verify compliance with contract specifications
• Support the evaluation of coffee for sale and quality control
• Facilitate technical, commercial, administrative, and arbitration examinations
• Provide reference samples for potential legal disputes

This standard ensures the integrity of instant coffee samples by considering the hygroscopic and fragile nature of the product.

Key Topics

• Scope and Applicability
  Designed for bulk instant coffee units with moisture-resistant, hermetically sealed liners
  Applies to units generally between 10 and 50 kg, including larger plastic big bags

• Sampling Procedure
  Randomized selection of units based on agreed quantities
  Use of stainless steel scoops for precise increments (~100 g each)
  Collection of increments to form a bulk sample of at least 1,000 g
  Preparation of blended bulk samples and laboratory samples without compromising sample integrity

• Sample Handling and Storage
  Protection against contamination and moisture absorption
  Moisture-proof, oxygen-tight containers with secure closures
  Prompt dispatch of laboratory samples for analysis
  Retention of blended bulk and individual increments until final acceptance

• Sampling Reports and Documentation
  Detailed record of sampling conditions, including lot identification and presence of damaged units
  Reporting environmental conditions like humidity and potential contaminants

• Equipment Requirements
  Use of specially designed stainless steel scoops to minimize particle breakdown
  Clean, inert packaging materials that do not affect coffee odor or taste

Applications

ISO 6670:2002's sampling methodology is crucial for:

• Quality Assurance in Coffee Processing
  Ensures that consignments meet defined quality and safety standards before bulk release or sale.

• Commercial Transactions
  Provides a standardized basis for acceptance or rejection of instant coffee shipments in trade agreements.

• Regulatory Compliance
  Assists in adhering to international food product regulations and contract specifications.

• Technical and Arbitration Purposes
  Facilitates consistent sampling for dispute resolution or product characterization.

• Laboratory Testing and Analysis
  Supports accurate and representative testing of physical and chemical properties, such as bulk density and particle size.

Related Standards

• ISO 3509: Coffee and its Products - Vocabulary
  Defines terms used in ISO 6670:2002 and provides a common linguistic framework for coffee products.

• Other ISO Standards on Coffee Quality and Testing Methods
  Standards detailing sensory evaluation, chemical analysis, and packaging of coffee products complement ISO 6670 by addressing other aspects of quality assurance.

---

ISO 6670:2002 provides an internationally recognized, practical approach to sampling bulk instant coffee units with liners. By following this standard, coffee producers, traders, and laboratories can ensure representative sampling that maintains product integrity, supports quality control, and meets contractual and legal requirements.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2003
,QVWDQWNDYD0HWRGDY]RUþHQMD]DUD]VXWLWRYRU
Instant coffee -- Sampling method for bulk units with liners
Café soluble -- Méthode d'échantillonnage pour emballages en vrac avec doublure
Ta slovenski standard je istoveten z: ISO 6670:2002
ICS:
67.140.20 Kava in kavni nadomestki Coffee and coffee substitutes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 6670
Second edition
2002-08-01
Instant coffee — Sampling method for bulk
units with liners
Café soluble — Méthode d'échantillonnage pour emballages en vrac avec
doublure
Reference number
©
ISO 2002
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be
edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file,
parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters
were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event
that a problem relating to it is found, please inform the Central Secretariat at the address given below.
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's
member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.ch
Printed in Switzerland
©
ii ISO 2002 – All rights reserved

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
member bodies). The work of preparing International Standards is normally carried out through ISO technical
committees. Each member body interested in a subject for which a technical committee has been established 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. ISO collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 6670 was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee
SC 15, Coffee.
This second edition cancels and replaces the first edition (ISO 6670:1983), which has been technically revised.
Annex A forms a normative part of this International Standard.
©
ISO 2002 – All rights reserved iii

INTERNATIONAL STANDARD ISO 6670:2002(E)
Instant coffee — Sampling method for bulk units with liners
1 Scope
1.1 This International Standard specifies a method of sampling a consignment of instant coffee, shipped in ten
units or more, for the purpose of examination to determine whether the consignment complies with a contract
specification.
The cases used have inner linings of moisture-resistant material hermetically sealed because of the hygroscopic
nature of instant coffee, and are in units greater than 10 kg net mass, typically up to 50 kg. This method is also
applicable to units of more than 50 kg, usually named as big bags or supersacks. The cases are generally made of
cardboard of appropriate strength and the big bags are made of suitable plastic material.
1.2 The method may also be used for the selection and preparation of a sufficiently representative sample of the
consignment, intended
a) to serve as a basis for an offer for sale,
b) for examination to verify that the instant coffee to be offered for sale satisfies the producer's sales specification,
c) for examination to determine one or more of the characteristics of the instant coffee for technical, commercial,
administrative and arbitration purposes, and
d) for retention as a reference sample for use, if required, in litigation.
In practice, consignments of instant coffee are often blended in use and before packing.
1.3 This International Standard is applicable to all types of instant coffee, as defined in ISO 3509, contained in all
types of units with liners, with the exception stated in 1.4.
1.4 For bulk density and particle size, this International Standard applies to spray-dried powder and freeze-dried
instant coffees only, as defined in ISO 3509, due to the intrinsic fragility of particles of agglomerated instant coffee,
which leads to greater breakdown and headspace in the final packed units for the consumer.
2 Normative reference
The following normative document contains provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, this publication do not
apply. However, parties to agreements based on this International Standard are encouraged to investigate the
possibility of applying the most recent edition of the normative document indicated below. For undated references,
the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of
currently valid International Standards.
ISO 3509, Coffee and its products — Vocabulary
3 Terms and definitions
For the purposes of this International Standard, the following terms and definitions apply.
3.1
consignment
quantity of instant coffee in every unit, dispatched or received at one time and covered by a particular contract or
shipping document
©
ISO 2002 – All rights reserved 1

NOTE A consignment may be composed of one or more lots.
3.2
lot
part of a consignment or a consignment, from one source, presumed to have uniform characteristics and with similar
identifying codes
NOTE A lot consists of not more than 1 500 of every unit of the same type and mass, containing instant coffee assumed to have
common properties of reasonably uniform character and to which a given scheme of examination can be applied.
3.3
dam
...

INTERNATIONAL ISO
STANDARD 6670
Second edition
2002-08-01
Instant coffee — Sampling method for bulk
units with liners
Café soluble — Méthode d'échantillonnage pour emballages en vrac avec
doublure
Reference number
©
ISO 2002
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be
edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file,
parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters
were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event
that a problem relating to it is found, please inform the Central Secretariat at the address given below.
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO's
member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.ch
Printed in Switzerland
©
ii ISO 2002 – All rights reserved

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO
member bodies). The work of preparing International Standards is normally carried out through ISO technical
committees. Each member body interested in a subject for which a technical committee has been established 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. ISO collaborates closely with the International Electrotechnical
Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.
Draft International Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this International Standard may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
International Standard ISO 6670 was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee
SC 15, Coffee.
This second edition cancels and replaces the first edition (ISO 6670:1983), which has been technically revised.
Annex A forms a normative part of this International Standard.
©
ISO 2002 – All rights reserved iii

INTERNATIONAL STANDARD ISO 6670:2002(E)
Instant coffee — Sampling method for bulk units with liners
1 Scope
1.1 This International Standard specifies a method of sampling a consignment of instant coffee, shipped in ten
units or more, for the purpose of examination to determine whether the consignment complies with a contract
specification.
The cases used have inner linings of moisture-resistant material hermetically sealed because of the hygroscopic
nature of instant coffee, and are in units greater than 10 kg net mass, typically up to 50 kg. This method is also
applicable to units of more than 50 kg, usually named as big bags or supersacks. The cases are generally made of
cardboard of appropriate strength and the big bags are made of suitable plastic material.
1.2 The method may also be used for the selection and preparation of a sufficiently representative sample of the
consignment, intended
a) to serve as a basis for an offer for sale,
b) for examination to verify that the instant coffee to be offered for sale satisfies the producer's sales specification,
c) for examination to determine one or more of the characteristics of the instant coffee for technical, commercial,
administrative and arbitration purposes, and
d) for retention as a reference sample for use, if required, in litigation.
In practice, consignments of instant coffee are often blended in use and before packing.
1.3 This International Standard is applicable to all types of instant coffee, as defined in ISO 3509, contained in all
types of units with liners, with the exception stated in 1.4.
1.4 For bulk density and particle size, this International Standard applies to spray-dried powder and freeze-dried
instant coffees only, as defined in ISO 3509, due to the intrinsic fragility of particles of agglomerated instant coffee,
which leads to greater breakdown and headspace in the final packed units for the consumer.
2 Normative reference
The following normative document contains provisions which, through reference in this text, constitute provisions of
this International Standard. For dated references, subsequent amendments to, or revisions of, this publication do not
apply. However, parties to agreements based on this International Standard are encouraged to investigate the
possibility of applying the most recent edition of the normative document indicated below. For undated references,
the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of
currently valid International Standards.
ISO 3509, Coffee and its products — Vocabulary
3 Terms and definitions
For the purposes of this International Standard, the following terms and definitions apply.
3.1
consignment
quantity of instant coffee in every unit, dispatched or received at one time and covered by a particular contract or
shipping document
©
ISO 2002 – All rights reserved 1

NOTE A consignment may be composed of one or more lots.
3.2
lot
part of a consignment or a consignment, from one source, presumed to have uniform characteristics and with similar
identifying codes
NOTE A lot consists of not more than 1 500 of every unit of the same type and mass, containing instant coffee assumed to have
common properties of reasonably uniform character and to which a given scheme of examination can be applied.
3.3
damaged case
damaged big bag
unit having a liner which is torn, indicating possible damage to, or contamination of, the instant coffee therein, or unit
which is soiled or otherwise contaminated, in such a way as is likely to cause contamination of the instant coffee itself
3.4
sample
part of a lot, from which the properties of the lot are to be estimated by examination, i.e. every unit that has been
selected
3.5
increment
quantity of
...

NORME ISO
INTERNATIONALE 6670
Deuxième édition
2002-08-01
Café soluble — Méthode d'échantillonnage
pour emballages en vrac avec doublure
Instant coffee — Sampling method for bulk units with liners

Numéro de référence
©
ISO 2002
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Imprimé en Suisse
©
ii ISO 2002 – Tous droits réservés

Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes nationaux de
normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est en général confiée aux
comités techniques de l'ISO. Chaque comité membre intéressé par une étude a le droit de faire partie du comité
technique créé à cet effet. Les organisations internationales, gouvernementales et non gouvernementales, en liaison
avec l'ISO participent également aux travaux. L'ISO collabore étroitement avec la Commission électrotechnique
internationale (CEI) en ce qui concerne la normalisation électrotechnique.
Les Normes internationales sont rédigées conformément aux règles données dans les Directives ISO/CEI, Partie 3.
Les projets de Normes internationales adoptés par les comités techniques sont soumis aux comités membres pour
vote. Leur publication comme Normes internationales requiert l'approbation de 75 % au moins des comités membres
votants.
L'attention est appelée sur le fait que certains des éléments de la présente Norme internationale peuvent faire l'objet
de droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable de ne pas
avoir identifié de tels droits de propriété et averti de leur existence.
La Norme internationale ISO 6670 a été élaborée par le comité technique ISO/TC 34, Produits alimentaires, sous-
comité SC 15, Café.
Cette deuxième édition annule et remplace la première édition (ISO 6670:1983), dont elle constitue une révision
technique.
L'annexe A constitue un élément normatif de la présente Norme internationale.
©
ISO 2002 – Tous droits réservés iii

NORME INTERNATIONALE ISO 6670:2002(F)
Café soluble — Méthode d'échantillonnage pour emballages en
vrac avec doublure
1 Domaine d'application
1.1 La présente Norme internationale spécifie une méthode d'échantillonnage d'une livraison de café soluble de
dix emballages ou plus, en vue de permettre l'examen de la conformité de cette livraison avec les spécifications d'un
contrat.
Les caisses utilisées sont dotées de doublures intérieures fabriquées en un matériau résistant à l’humidité et
fermées hermétiquement en raison de la nature hygroscopique du café soluble. Elles ont chacune une masse nette
supérieure à 10 kgjusqu'à 50 kg, en général. Il est également possible d’utiliser des emballages unitaires de plus de
50 kg, que l’on dénomme couramment «grands sacs» ou «supersacs». Les caisses sont généralement en carton de
résistance appropriée et les grands sacs sont fabriqués en un matériau plastique adéquat.
1.2 La méthode peut également être utilisée pour la sélection et la préparation d'un échantillon suffisamment
représentatif de la livraison, destiné
a) à servir de base pour une offre de vente;
b) à vérifier que le café soluble offert à la vente répond aux spécifications de vente du producteur;
c) à déterminer une ou plusieurs caractéristiques du café soluble pour des besoins techniques, commerciaux,
administratifs et d'arbitrage;
d) à servir d'échantillon de référence exigé éventuellement en cas de litige.
Dans la pratique, les livraisons de café soluble sont fréquemment mélangées pendant l'emploi et avant l'emballage.
1.3 La présente Norme internationale est applicable à tous les types de café soluble, tels qu'ils sont définis dans
l'ISO 3509, contenus dans des emballages unitaires avec doublure, à l'exception de ceux indiqués en 1.4.
1.4 Eu égard notamment à la masse volumique en vrac et à la dimension des particules, la présente Norme
internationale s’applique uniquement aux cafés solubles atomisés et lyophilisés tels que définis dans l’ISO 3509, en
raison de la fragilité intrinsèque des particules du café soluble aggloméré qui entraîne de plus grands défauts et un
plus grand espace libre dans les emballages destinés au consommateur final.
2Référence normative
Le document normatif suivant contient des dispositions qui, par suite de la référence qui y est faite, constituent des
dispositions valables pour la présente Norme internationale. Pour les références datées, les amendements ultérieurs
ou les révisions de cette publication ne s'appliquent pas. Toutefois, les parties prenantes aux accords fondés sur la
présente Norme internationale sont invitées à rechercher la possibilité d'appliquer l'édition la plus récente du
document normatif indiqué ci-après. Pour les références non datées, la dernière édition du document normatif en
référence s'applique. Les membres de l'ISO et de la CEI possèdent le registre des Normes internationales en
vigueur.
ISO 3509, Cafés et dérivés — Vocabulaire
©
ISO 2002 – Tous droits réservés 1

3 Termes et définitions
Pour les besoins de la présente Norme internationale, les termes et définitions suivants s'appliquent.
3.1
livraison
quantité de café soluble dans chaque emballage unitaire, expédiée ou reçue en une seule fois et correspondant à un
contrat particulier ou à un bordereau d’envoi
NOTE Elle peut être composée d'un ou de plusieurs lots.
3.2
lot
partie d'une livraison ou livraison, provenant d'une seule origine, dont les caractéristiques sont supposées uniformes
et les codes d'identification identiques
NOTE Un lot est constitué d’un maximum de 1 500 emballages de même type et de même masse, ces emballages contenant du
café soluble qui est supposé avoir des propriétés communes, de caractère à peu près uniforme et pouvant être examinées selon
un plan fixé.
3.3
caisses endommagées
grands sacs endommagés
emballages unitaires dont les doublures sont déchirées, laissant supposer d'éventuels dommages ou la
contamination du café soluble à l'intérieur, ou bien emballages unitaires souillés ou contaminés de toute autre
manière, pouvant provoquer la contamination du café soluble proprement dit
3.4
échantillon
partie d'un lot à partir de laquelle doivent être estimées, par examen, les caractéristiques de l’ensemble du lot, c'est-
à-dire chacun des emballages unitaires choisis
3.5
prélèvement élémentaire
quantité de 100 g± 20 g de café soluble, prélevée dans un emballage unitaire issu d’un lot spécifique
3.6
échantillon global
quantité d'au moins 1 000 g de café soluble, obtenue en réunissant tous les prélèvements élémentaires (3.5) issus
des emballages unitaires d’un lot spécifique
3.7
échantillon global mélangé
quantité de café soluble, obtenue en réunissant et en mélan
...