prEN ISO 8351-1

• Abstract:

  Provides a checklist for the characteristics of paper sacks to be specified when ordering. These ordering specifications cover the decription of the sack and do not deal with quantitative performance requirements. Is primarily intended for application to the types of paper sacks as specified in ISO 6590-2.

• Status: Not Published
• Publication Date: 23-Jan-2028
• ICS: 55.080 - Sacks. Bags
• Technical Committee: CEN/TC 261 - Packaging
• Drafting Committee: CEN/TC 261/SC 2/WG 3 - Paper and paperboard packaging for primary, transport and distribution packaging
• Current Stage: 4020 - Submission to enquiry - Enquiry
• Start Date: 02-Jul-2026
• Completion Date: 02-Jul-2026
• Ref Project: oSIST prEN ISO 8351-1:2026 - Packaging - Method of specification for sacks - Part 1: Paper sacks (ISO/DIS 8351-1:2026)

• Revises: EN ISO 8351-1:1996 - Packaging - Method of specification for sacks - Part 1: Paper sacks (ISO 8351-1:1994)
• Effective Date: 15-Oct-2025

Overview

prEN ISO 8351-1:2026 - Packaging – Method of specification for sacks – Part 1: Paper sacks provides a standardized checklist for defining the essential characteristics required when specifying and ordering paper sacks. Developed jointly by CEN and ISO technical committees, this standard enables users to clearly communicate requirements for paper sack construction and features, ensuring alignment between manufacturers and purchasers. While prEN ISO 8351-1 addresses qualitative descriptions, it is not intended to specify performance metrics or quantitative minimum requirements for paper sacks.

Key Topics

• Description of Paper Sacks: Offers precise guidance on specifying sack types (open-mouth, valved/closed-mouth), tube construction, and critical dimensions (length, width, bottom/valve specifications).
• Materials and Plies: Details the specification of the number of plies, material type, grammage, thickness, and surface treatments for each ply. Accommodates additional features like thermoplastic films and coatings.
• Construction Features:
  • Air-Permeability Perforations: Identification and specification of sack, tube, and micro-perforations to allow proper filling and air release.
  • Valves, Sleeves, and Closures: Standardizes descriptions for types and positions of valves, sleeve materials, seam types, pasted closure options, as well as bottom patch and cap configuration.
  • Sewing and Adhesives: Defines sewing types and patterns, filter cords, threads, adhesives, and taping, alongside their position and application.
• Printing and Packaging: Provides recommendations for specifying print details, ink types, coverage, and labeling, as well as packaging configuration for shipment and storage.
• Accompanying Documentation: Stipulates the inclusion of relevant documentation like specification numbers, addresses, and other key acknowledgments for efficient logistics.

Applications

prEN ISO 8351-1 is primarily intended for users involved in ordering or producing paper sacks across industrial, commercial, and packaging supply chain sectors. Its practical applications include:

• Creating precise and unambiguous purchasing specifications for bulk paper sack orders.
• Facilitating clear communication between customers and suppliers to reduce errors and rework.
• Supporting procurement, development, and quality assurance teams in the packaging industry.
• Ensuring compatibility and consistency with European and international standards, especially for food, industrial goods, chemicals, and construction materials.

By leveraging the detailed checklist provided by this standard, organizations can drive efficiency and cost savings, minimize misunderstandings, and improve end-to-end quality in paper sack packaging.

Related Standards

For comprehensive specification and measurement of paper sacks, users should consider the following related standards:

• EN ISO 6590-1:2025 – Packaging – Vocabulary – Part 1: Paper sacks: Contains standardized terminology essential for the application of prEN ISO 8351-1.
• prEN ISO 6591-1 – Packaging – Dimensions and method of measurement – Part 1: Empty paper sacks: Details methods for measuring the key dimensions referenced in this standard.
• ISO 8351 Series – The broader ISO 8351 series covers other materials and sack types, expanding the scope for various packaging needs.

Integrating prEN ISO 8351-1:2026 with these related standards ensures holistic, harmonized, and internationally recognized paper sack specifications for packaging professionals.

Keywords: paper sacks, packaging standard, prEN ISO 8351-1, CEN, sack specification, packaging supply chain, paper sack ordering, industrial packaging, packaging materials, packaging requirements, sack construction, packaging documentation, ISO 6590-2.

SLOVENSKI STANDARD
01-september-2026
Embalaža - Metoda za določitev specifikacije za vreče - 1. del: Papirnate vreče
(ISO/DIS 8351-1:2026)
Packaging - Method of specification for sacks - Part 1: Paper sacks (ISO/DIS 8351-
1:2026)
Verpackung - Spezifikationsverfahren für Säcke - Teil 1: Papiersäcke (ISO/DIS 8351-
1:2026)
Emballages - Méthode de spécification des sacs - Partie 1: Sacs en papier (ISO/DIS
8351-1:2026)
Ta slovenski standard je istoveten z: prEN ISO 8351-1
ICS:
55.080 Vreče. Vrečke Sacks. Bags
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 8351-1
ISO/TC 122/SC 3
Packaging — Method of
Secretariat: BSI
specification for sacks —
Voting begins on:
Part 1: 2026-06-29
Paper sacks
Voting terminates on:
2026-09-21
Emballages — Méthode de spécification des sacs —
Partie 1: Sacs en papier
ICS: 55.080
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 8351-1:2026(en)
DRAFT
ISO/DIS 8351-1:2026(en)
International
Standard
ISO/DIS 8351-1
ISO/TC 122/SC 3
Packaging — Method of
Secretariat: BSI
specification for sacks —
Voting begins on:
Part 1:
Paper sacks
Voting terminates on:
Emballages — Méthode de spécification des sacs —
Partie 1: Sacs en papier
ICS: 55.080
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2026
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
ISO copyright office
RECIPIENTS OF THIS DRAFT ARE INVITED
CP 401 • Ch. de Blandonnet 8
TO SUBMIT, WITH THEIR COMMENTS,
CH-1214 Vernier, Geneva
NOTIFICATION OF ANY RELEVANT PATENT
Phone: [phone]
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 8351-1:2026(en)
ii
ISO/DIS 8351-1:2026(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Method of specification. 1
4.1 General .1
4.2 Description .1
4.2.1 Sack type .1
4.2.2 Tube type .2
4.2.3 Dimensions .2
4.2.4 Plies .3
4.2.5 Air permeability perforations .3
4.2.6 Valve/sleeve .4
4.2.7 Longitudinal seam .4
4.2.8 Pasted closure type.4
4.2.9 Bottom inner patch .4
4.2.10 Bottom cap .4
4.2.11 Bottom orientation .4
4.2.12 Sewn closures/sewing .5
4.2.13 Filling aperture (open-mouth sacks only) .5
4.2.14 Adhesives .6
4.2.15 Printing .6
4.2.16 Packaging .6
4.2.17 Accompanying documentation .7

iii
ISO/DIS 8351-1:2026(en)
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
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with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
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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ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
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rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
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