ISO 6670:2025

International
Standard
ISO 6670
Third edition
Instant coffee — Sampling method
2025-12
for bulk units with liners
Café soluble — Méthode d'échantillonnage pour emballages en
vrac avec doublure
Reference number
© ISO 2025
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Published in Switzerland
ii
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 2
4.1 Sampling personnel .2
4.2 Sampling conditions .2
5 Sampling equipment . 3
6 Procedure . 3
6.1 Taking increments .3
6.2 Preparation of samples .3
6.2.1 General .3
6.2.2 Bulk sample .3
6.2.3 Blended bulk sample .3
6.2.4 Laboratory sample .4
6.2.5 Separate increments .4
7 Packing and marking of samples . 4
7.1 Precautions when packing samples .4
7.2 Marking .4
8 Sampling report . 4
9 Precautions during storage and transport of samples . 5
Annex A (normative) Scoop sampling method . 6

iii
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
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The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO document should be noted. This document was drafted in accordance with the editorial rules of the
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This document was prepared by Technical Committee ISO/TC 34, Food products, Subcommittee SC 15, Coffee.
This third edition cancels and replaces the second edition (ISO 6670:2002), which has been technically
revised.
The main changes are as follows:
— the terms and definitions have been updated;
— the marking content has been updated;
— the procedure of Annex A has been updated.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
International Standard ISO 6670:2025(en)
Instant coffee — Sampling method for bulk units with liners
1 Scope
1.1 This document specifies a sampling method for a consignment of instant coffee, shipped in 10 package
units or more.
This document is applicable to cases which have inner linings of moisture-resistant material hermetically
sealed because of the hygroscopic nature of instant coffee and which are in package units greater than 10 kg
net mass, typically up to 50 kg. This document is also applicable to units of more than 50 kg, usually called
“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 This document is also applicable to the selection and preparation of a sufficiently representative
sample of the consignment, which is 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
...