Materials obtained from End of Life Tyres - Determination of specific requirements for sampling and determination of moisture content using the oven-dry method

This draft Technical Specification specifies a method for determining the total moisture content of materials obtained from End of Life Tyres (ELT) by drying samples in an oven. The method is applicable to chips, granulates, powders and textile derived from the treatment of End of Life Tyres.
This document is not intended for the determination of moisture content in steel wires.

Materialien aus Altreifen - Bestimmung der spezifischen Anforderungen für die Probennahme und Bestimmung des Feuchtigkeitsgehaltes aus dem Ofen-Trockenverfahren

Dieser Entwurf der Technischen Spezifikation legt ein Verfahren zur Bestimmung des Gesamtfeuchtigkeits-gehaltes von Materialien aus Altreifen (en: End of Life Tyres – ELT) durch das Trocknen von Proben in einem Ofen fest. Das Verfahren gilt für Schnitzel, Granulate, Pulver und Textilien, die aus der Verarbeitung von Altreifen stammen.
Dieses Dokument ist nicht für die Bestimmung des Feuchtigkeitsgehaltes in Stahldrähten vorgesehen.

Snovi iz izrabljenih avtomobilskih gum - Določanje specifičnih zahtev za vzorčenje in ugotavljanje deleža vlage z uporabo sušilnika

Ta osnutek tehnične specifikacije določa metodo za določevanje skupnega deleža vlage v materialih, pridobljenih iz izrabljenih avtomobilskih pnevmatik (ELT), s sušenjem vzorcev v sušilniku. Ta metoda se uporablja za odrezke, granule, praške in tekstil, pridobljene pri obdelavi izrabljenih avtomobilskih pnevmatik.
Ta dokument se ne uporablja za določevanje deleža vlage v jeklenih žicah.

General Information

Status
Published
Public Enquiry End Date
29-Nov-2015
Publication Date
10-Apr-2016
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
24-Mar-2016
Due Date
29-May-2016
Completion Date
11-Apr-2016

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SLOVENSKI STANDARD
SIST-TS CEN/TS 16916:2016
01-maj-2016

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Materials obtained from End of Life Tyres - Determination of specific requirements for

sampling and determination of moisture content using the oven-dry method
Materialien aus Altreifen - Bestimmung der spezifischen Anforderungen für die
Probennahme und Bestimmung des Feuchtigkeitsgehaltes aus dem Ofen-
Trockenverfahren
Ta slovenski standard je istoveten z: CEN/TS 16916:2016
ICS:
13.030.50 Recikliranje Recycling
83.160.01 Avtomobilske pnevmatike na Tyres in general
splošno
SIST-TS CEN/TS 16916:2016 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS CEN/TS 16916:2016
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SIST-TS CEN/TS 16916:2016
CEN/TS 16916
TECHNICAL SPECIFICATION
SPÉCIFICATION TECHNIQUE
March 2016
TECHNISCHE SPEZIFIKATION
ICS 13.030.50; 83.160.01
English Version
Materials obtained from End of Life Tyres - Determination
of specific requirements for sampling and determination of
moisture content using the oven-dry method
Materialien aus Altreifen - Bestimmung der
spezifischen Anforderungen für die Probennahme und
Bestimmung des Feuchtigkeitsgehaltes aus dem Ofen-
Trockenverfahren

This Technical Specification (CEN/TS) was approved by CEN on 11 January 2016 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to

submit their comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS

available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in

parallel to the CEN/TS) until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 16916:2016 E

worldwide for CEN national Members.
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SIST-TS CEN/TS 16916:2016
CEN/TS 16916:2016 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

1 Scope .................................................................................................................................................................... 4

2 Normative references .................................................................................................................................... 4

3 Terms and definitions ................................................................................................................................... 4

4 Principle ............................................................................................................................................................. 4

5 Apparatus ........................................................................................................................................................... 4

6 Preparation of the sampling plan and laboratory sample ............................................................... 5

6.1 Principles of sampling ................................................................................................................................... 5

6.1.1 General ................................................................................................................................................................ 5

6.1.2 Sampling plan ................................................................................................................................................... 5

6.2 Sampling point and apparatus ................................................................................................................... 5

6.2.1 Sampling point for stocked materials ...................................................................................................... 5

6.2.2 Sampling point for production samples.................................................................................................. 7

6.3 Determination of lot size .............................................................................................................................. 7

6.3.1 Lot size for production .................................................................................................................................. 7

6.3.2 Lot size of stocked material ......................................................................................................................... 7

6.4 Size of a sample increment .......................................................................................................................... 7

6.5 Number of increments ................................................................................................................................... 7

6.5.1 Number of increments from production process ................................................................................ 7

6.5.2 Number of increments from stocked materials in big bags ............................................................. 8

6.6 Storage and transport of laboratory sample(s) ................................................................................... 9

7 Procedure........................................................................................................................................................... 9

7.1 Reference method ........................................................................................................................................... 9

8 Calculation ...................................................................................................................................................... 10

8.1 Moisture content – reference method .................................................................................................. 10

9 Test report ...................................................................................................................................................... 10

Bibliography ................................................................................................................................................................. 11

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SIST-TS CEN/TS 16916:2016
CEN/TS 16916:2016 (E)
European foreword

This document (CEN/TS 16916:2016) has been prepared by Technical Committee CEN/TC 366

“Materials obtained from End-of-Life Tyres (ELT)”, the secretariat of which is held by UNI.

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

patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent

rights.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,

Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
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SIST-TS CEN/TS 16916:2016
CEN/TS 16916:2016 (E)
1 Scope

This Technical Specification specifies a method for determining the total moisture content of materials

obtained from End of Life Tyres (ELT) by drying samples in an oven. The method is applicable to chips,

granulates, powders and textile derived from the treatment of End of Life Tyres.

This document is not intended for the determination of moisture content in steel wires.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

CEN/TS 14243:2010, Materials produced from end of life tyres — Specification of categories based on

their dimension(s) and impurities and methods for determining their dimension(s) and impurities

3 Terms and definitions

For the purposes of this document, the terms and definitions given in CEN/TS 14243:2010 apply.

4 Principle

The sample of material is dried at a temperature of 105 °C in air atmosphere until constant mass is

reached. The percentage of moisture is calculated from the loss in mass of the sample. The method

includes a procedure for the correction of buoyancy effects.
5 Apparatus

5.1 Drying oven, capable of being controlled at (105 ± 2) °C (see declaration of the manufacturer)

and in which the air atmosphere changes between three and five times per hour.

The air velocity shall be such that the sample particles are not dislodged from their dish or tray (5.2).

5.2 Dishes or trays of non-corrodible and heat-resistant material and of such dimensions that they

are able to hold the total sample in the proportion of about 1 g of sample per 100 mm of surface area

of the dish or tray respectively or about 0,5 g per 100 mm for textile samples.

The surface of the dish or tray shall be such that the possibility to adsorption/absorption is minimized

(very clean and even surface).

5.3 Balance, capable of weighing the sample and dish or tray (5.2), as received, to the nearest 0,1 g.

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SIST-TS CEN/TS 16916:2016
CEN/TS 16916:2016 (E)
6 Preparation of the sampling plan and laboratory sample
6.1 Principles of sampling
6.1.1 General
The main p
...

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