NF EN ISO 14855-1

NF EN ISO 14855-1

March 2013
Standard Current

Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions - Method by analysis of evolved carbon dioxide - Part 1 : general method

ISO 14855-1:2012 specifies a method for the determination of the ultimate aerobic biodegradability of plastics, based on organic compounds, under controlled composting conditions by measurement of the amount of carbon dioxide evolved and the degree of disintegration of the plastic at the end of the test. This method is designed to simulate typical aerobic composting conditions for the organic fraction of solid mixed municipal waste. The test material is exposed to an inoculum which is derived from compost. The composting takes place in an environment wherein temperature, aeration and humidity are closely monitored and controlled. The test method is designed to yield the percentage conversion of the carbon in the test material to evolved carbon dioxide as well as the rate of conversion. Also specified is a variant of the method, using a mineral bed (vermiculite) inoculated with thermophilic microorganisms obtained from compost with a specific activation phase, instead of mature compost. This variant is designed to yield the percentage of carbon in the test substance converted to carbon dioxide and the rate of conversion.

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Collections

National standards and national normative documents

Publication date

March 2013

Number of pages

32 p.

Reference

NF EN ISO 14855-1

ICS Codes

13.030.50   Recycling
83.080.01   Plastics in general

Classification index

T51-803-1

Print number

1 - 12/02/2013

International kinship

ISO 14855-1:2012

European kinship

EN ISO 14855-1:2012
Sumary
Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions - Method by analysis of evolved carbon dioxide - Part 1 : general method

ISO 14855-1:2012 specifies a method for the determination of the ultimate aerobic biodegradability of plastics, based on organic compounds, under controlled composting conditions by measurement of the amount of carbon dioxide evolved and the degree of disintegration of the plastic at the end of the test. This method is designed to simulate typical aerobic composting conditions for the organic fraction of solid mixed municipal waste. The test material is exposed to an inoculum which is derived from compost. The composting takes place in an environment wherein temperature, aeration and humidity are closely monitored and controlled. The test method is designed to yield the percentage conversion of the carbon in the test material to evolved carbon dioxide as well as the rate of conversion.

Also specified is a variant of the method, using a mineral bed (vermiculite) inoculated with thermophilic microorganisms obtained from compost with a specific activation phase, instead of mature compost. This variant is designed to yield the percentage of carbon in the test substance converted to carbon dioxide and the rate of conversion.

Replaced standards (1)
NF EN ISO 14855-1
July 2008
Standard Cancelled
Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions - Method by analysis of evolved carbon dioxide - Part 1 : general method

Le présent document prescrit une méthode d'évaluation, d'une part, de la biodégradabilité aérobie ultime des plastiques à partir de composés organiques dans des conditions contrôlées de compostage, par mesurage du dioxyde de carbone libéré, et d'autre part, de leur désintégration à la fin de l'essai. La présente méthode est conçue pour se rapprocher des conditions de compostage aérobies caractéristiques de la fraction organique des déchets municipaux solides non triés. Le matériau d'essai est exposé dans le cadre d'un essai de laboratoire à un inoculum provenant d'un échantillon de compost. Le compostage aérobie a lieu dans un environnement où la température, l'aération et l'humidité, en particulier, sont étroitement contrôlées et maîtrisées. La méthode permet d'accéder au pourcentage et au taux de conversion du carbone contenu dans la substance à analyser, en dioxyde de carbone libéré.

Table of contents
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  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    1
  • 4 Principe
    2
  • 5 Environnement d'essai
    3
  • 6 Réactifs
    3
  • 6.1 Cellulose de qualité CCM (chromatographie sur couche mince)
    3
  • 6.2 Vermiculite
    3
  • 7 Appareillage
    4
  • 8 Mode opératoire
    5
  • 8.1 Préparation de l'inoculum
    5
  • 8.2 Préparation du matériau d'essai et de la substance de référence
    5
  • 8.3 Début de l'essai
    6
  • 8.4 Période d'incubation
    7
  • 8.5 Fin de l'essai
    7
  • 8.6 Utilisation de la vermiculite
    8
  • 8.7 Mode opératoire de récupération et bilan carbone lors de l'utilisation de la vermiculite
    9
  • 9 Calcul et expression des résultats
    9
  • 9.1 Calcul de la teneur théorique en dioxyde de carbone
    9
  • 9.2 Calcul du pourcentage de biodégradation
    9
  • 9.3 Calcul des pertes de masse
    10
  • 9.4 Expression des résultats
    10
  • 10 Validité des résultats
    10
  • 11 Rapport d'essai
    10
  • Annexe A (informative) Principe de fonctionnement d'un système d'essai
    12
  • Annexe B (informative) Exemples de représentation graphique des courbes de libération de dioxyde de carbone et de biodégradation
    14
  • Annexe C (informative) Exemple de détermination des pertes de masse
    16
  • Annexe D (informative) Essai interlaboratoires
    18
  • Annexe E (informative) Exemples de fiches techniques
    19
  • Bibliographie
    22
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