CEN/TS 16916:2016
(Main)Materials obtained from End of Life Tyres - Determination of specific requirements for sampling and determination of moisture content using the oven-dry method
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 Probenahme und Bestimmung des Feuchtegehaltes aus dem Ofen-Trockenverfahren
Diese Technische Spezifikation legt ein Verfahren zur Bestimmung des Gesamtfeuchte¬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.
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
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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.
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
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.
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.
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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