ISO/PRF TS 16095

Reclaimed rubber derived from products containing mainly natural rubber -- Evaluation procedure

Caoutchouc régénéré dérivé principalement de produits contenant du caoutchouc naturel -- Méthode d'évaluation

General Information

• Status: Published
• ICS: 83.040.10 - Latex and raw rubber
• Technical Committee: ISO/TC 45/SC 3 - Raw materials (including latex) for use in the rubber industry
• Drafting Committee: ISO/TC 45/SC 3/WG 5 - Synthetic and reclaimed rubber

RELATIONS

• Revised: ISO/TS 16095:2014 - Reclaimed rubber derived from products containing mainly natural rubber -- Evaluation procedure
• Effective Date: 17-Jul-2021

Standards Content (sample)

TECHNICAL ISO/TS
SPECIFICATION 16095
Second edition
Reclaimed rubber derived from
products containing mainly natural
rubber — Evaluation procedure
Caoutchouc régénéré dérivé principalement de produits contenant du
caoutchouc naturel — Méthode d'évaluation
PROOF/ÉPREUVE
Reference number
ISO/TS 16095:2021(E)
ISO 2021
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ISO/TS 16095:2021(E)
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© ISO 2021

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ii PROOF/ÉPREUVE © ISO 2021 – All rights reserved
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ISO/TS 16095:2021(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Sampling and sample preparation .................................................................................................................................................... 2

5 Physical and chemical tests on raw rubber .............................................................................................................................. 2

5.1 Mooney viscosity ................................................................................................................................................................................... 2

5.2 Acetone extract ....................................................................................................................................................................................... 2

5.3 Ash ..................................................................................................................................................................................................................... 2

5.4 Carbon black ............................................................................................................................................................................................. 2

5.5 Rubber content ....................................................................................................................................................................................... 2

6 Preparation of test mix for evaluation ........................................................................................................................................... 2

6.1 Standard test formulation ............................................................................................................................................................. 2

6.2 Mixing procedure — Mixing with a laboratory mill ............................................................................................... 3

7 E valuation of vulcanization characteristics by a curemeter test ....................................................................... 4

7.1 Using an oscillating disc curemeter ...................................................................................................................................... 4

7.2 Using a rotorless curemeter ........................................................................................................................................................ 5

8 E valuation of Mooney viscosity of test mixes .......................................................................................................................... 5

9 E valuation of tensile stress-strain properties of vulcanized test mixes .....................................................5

10 E valuation of Shore hardness of vulcanized test mixes ............................................................................................... 5

11 Test report ................................................................................................................................................................................................................... 6

Bibliography ................................................................................................................................................................................................................................ 7

© ISO 2021 – All rights reserved PROOF/ÉPREUVE iii
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ISO/TS 16095:2021(E)
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.

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 documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

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constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 45, Rubber and rubber products,

Subcommittee SC 3, Raw materials (including latex) for use in the rubber industry.

This second edition cancels and replaces the first edition (ISO/TS 16095:2014), which has been

technically revised.
The main changes compared to the previous edition are as follows:
— update of the normative references;
— addition of the CAS numbers in Table 1;
— addition of a Bibliography.

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.
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TECHNICAL SPECIFICATION ISO/TS 16095:2021(E)
Reclaimed rubber derived from products containing
mainly natural rubber — Evaluation procedure
1 Scope
This document defines
— the physical and chemical tests on raw reclaimed natural rubber, and

— the standard materials, standard test formulations, equipment, and processing methods for

evaluating the vulcanization characteristics, and the mechanical properties of reclaimed natural

rubber.
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 247-1:2018, Rubber — Determination of ash — Part 1: Combustion method

ISO 289-1, Rubber, unvulcanized — Determinations using a shearing-disc viscometer — Part 1:

Determination of Mooney viscosity
ISO 1382, Rubber — Vocabulary
ISO 1407:2011, Rubber — Determination of solvent extract

ISO 1408:1995, Rubber — Determination of carbon black content — Pyrolytic and chemical degradation

methods

ISO 1795, Rubber, raw natural and raw synthetic — Sampling and further preparative procedures

ISO 6502-2, Rubber — Measurement of vulcanization characteristics using curemeters — Part 2: Oscillating

disc curemeter

ISO 6502-3, Rubber — Measurement of vulcanization characteristics using curemeters — Part 3: Rotorless

curemeter
...