ISO 22941:2021

Rubber sheets for livestock - Dairy cattle - Specification

This document specifies the characteristics of solid rubber sheets for dairy cattle. These sheets are used in a walking or lying area. This document does not include design of the product.

Feuille de caoutchouc pour le bétail — Bovins laitiers — Spécifications

General Information

• Status: Published
• Publication Date: 13-Sep-2021
• ICS: 83.140.99 - Other rubber and plastics products
• Technical Committee: ISO/TC 45/SC 4 - Products (other than hoses)
• Drafting Committee: ISO/TC 45/SC 4/WG 16 - General rubber sheets
• Current Stage: 6060 - International Standard published
• Start Date: 14-Sep-2021
• Due Date: 14-Sep-2021
• Completion Date: 14-Sep-2021

Overview

ISO 22941:2021 - Rubber sheets for livestock - Dairy cattle - Specification defines the required characteristics and test-based performance for solid rubber sheets used in dairy cattle walking and lying areas. The standard covers classification, visual inspection, dimensional tolerances, physical-property requirements and labelling. It specifies performance limits and test methods (see normative references and annexes) but does not prescribe product design.

Key topics and technical requirements

• Scope & classification

  • Applies to solid rubber sheets for use in walking areas (passages, milking stands) and lying areas.
  • Two product types: walking area and lying area, each with specific performance limits.

• Visual and dimensional requirements

  • Sheets must be free from visible defects (holes, blisters, porosity, foreign materials).
  • Dimensions agreed between parties; tolerances to ISO 3302-1 class M4. Median of at least three measurements reported.

• Physical property limits (examples from the standard)

  • Hardness: nominal 50–80 Shore A (±5 Shore A tolerance by agreement).
  • Tensile strength: ≥ 3 MPa; Elongation at break: ≥ 80%.
  • Aging: limits on change in hardness, tensile strength and elongation after accelerated ageing (ISO 188).
  • Abrasion resistance: maximum value specified (tested per ISO 4649).
  • Compression set: different maxima for walking and lying area sheets (ISO 815-1).
  • Liquid resistance: mass and hardness change limits after immersion in ammonia and peracetic-acid disinfectant (Annex A, ISO 1817).
  • Deformability: specified range for walking area and minimum for lying area; measured with hoof-shaped or calotte indentors (Annex B).
  • Slip resistance: coefficient of friction ≥ 0.40 in both dry and wet conditions using a polyamide hoof-simulating foot (Annex C).

• Labelling

  • Required information includes product name, type (walking/lying), size, manufacturer identification and manufacture/lot date.

Practical applications and users

ISO 22941:2021 is intended for:

• Rubber sheet manufacturers - to develop and certify products to meet dairy-specific performance.
• Farm builders / dairy facility designers - to specify suitable flooring materials for animal welfare and safety.
• Procurement/specifiers and quality managers - for product selection, acceptance criteria and supplier audits.
• Testing laboratories and conformity assessors - to perform the normative tests and report results.
• Farm operators and animal welfare auditors - to assess floor coverings for traction, durability, hygiene and cow comfort.

Benefits include improved animal welfare, reduced slips/lameness, easier cleaning and longer service life of flooring systems.

Related standards

Normative references cited in ISO 22941:2021 include ISO 48-4, ISO 37, ISO 188:2011, ISO 815-1:2019, ISO 1817, ISO 3302-1, ISO 4649:2017, ISO 5893, and related test-preparation guidance such as ISO 23529. These provide the detailed test methods referenced in the specification.

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 22941
First edition
2021-09
Rubber sheets for livestock — Dairy
cattle — Specification
Feuille de caoutchouc pour le bétail — Bovins laitiers —
Spécifications
Reference number
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
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or ISO’s member body in the country of the requester.
ISO copyright office
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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 Classification . 1
5 Requirements . 2
5.1 General . 2
5.2 Dimensions . 2
5.3 Physical properties . 2
6 Labelling . 2
Annex A (normative) Liquid resistance . 4
Annex B (normative) Deformability . 5
Annex C (normative) Slip resistance .8
Bibliography .10
iii
Foreword
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This document was prepared by Technical Committee ISO/TC 45, Rubber and rubber products,
Subcommittee SC 4, Products (other than hoses).
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 22941:2021(E)
Rubber sheets for livestock — Dairy cattle — Specification
1 Scope
This document specifies the characteristics of solid rubber sheets for dairy cattle. These sheets are
used in a walking or lying area. This document does not include design of the product.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 37, Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties
ISO 48-4, Rubber, vulcanized or thermoplastic — Determination of hardness — Part 4: Indentation
hardness by durometer method (Shore hardness)
ISO 188:2011, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat resistance tests
ISO 815-1:2019, Rubber, vulcanized or thermoplastic — Determination of compression set — Part 1: At
ambient or elevated temperatures
ISO 1817, Rubber, vulcanized or thermoplastic — Determination of the effect of liquids
ISO 3302-1, Rubber — Tolerances for products — Part 1: Dimensional tolerances
ISO 4649:2017, Rubber, vulcanized or thermoplastic — Determination of abrasion resistance using a
rotating cylindrical drum device
ISO 5893, Rubber and plastics test equipment — Tensile, flexural and compression types (constant rate of
traverse) — Specification
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and
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