EN 15590:2011

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RELRORãNHJDFeste Sekundärbrennstoffe - Bestimmung des potenziellen Grades der mikrobiellen Selbsterhitzung mittels des realen dynamischen RespirationsindexesCombustibles solides de récupération - Détermination du taux d'activité microbienne utilisant l'index de respiration dynamiqueSolid recovered fuels - Determination of potential rate of microbial self heating using the real dynamic respiration index75.160.10Trda gorivaSolid fuelsICS:Ta slovenski standard je istoveten z:EN 15590:2011SIST EN 15590:2011en,fr,de01-november-2011SIST EN 15590:2011SLOVENSKI
STANDARDSIST-TS CEN/TS 15590:20071DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15590
September 2011 ICS 75.160.10 Supersedes CEN/TS 15590:2007English Version
Solid recovered fuels - Determination of the current rate of aerobic microbial activity using the real dynamic respiration index
Combustibles solides de récupération - Détermination du taux d'activité microbienne utilisant l'indice de respiration dynamique
Feste Sekundärbrennstoffe - Bestimmung des aktuellen Grades aerober mikrobieller Aktivität mittels des realen dynamischen Respirationsindexes This European Standard was approved by CEN on 15 July 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15590:2011: ESIST EN 15590:2011

RDRI trend . 11Annex B (normative)
RDRI interpretation . 12Annex C (informative)
Results of the inter-laboratory test . 13C.1 Introduction . 13C.2 Laboratory analysis . 13C.3 Statistical analysis . 13Bibliography . 16 SIST EN 15590:2011

 results of inter-laboratory tests supplemented as an informative Annex C. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. SIST EN 15590:2011

2 Normative references The following referenced documents are indispensable for the application 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. EN 15357:2011, Solid recovered fuels — Terminology, definitions and descriptions EN 15443, Solid recovered fuels — Methods for the preparation of the laboratory sample 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 15357:2011 and the following apply. 3.1 easily biodegrable organic compounds organic substances available for decomposition by micro-organisms within a real dynamic respiration test 3.2 hourly real dynamic respiration index value of respiration index calculated every hour 3.3 lag or latency phase interval of time required for the microbial flora to acclimatize during the course of the real dynamic respirometric test 3.4 mean particle size aperture size of the sieve used for determining the particle size distribution of solid recovered fuels through which at least 50% by mass of the material passes 3.5 respiration index
rate of oxygen uptake expressed as milligram oxygen per kilogram total dry matter (dm) per hour 3.6 real dynamic respiration test
test measuring the respiration index under specific conditions including forced air flow 3.7 real dynamic respiration index RDRI average value of the respiration indexes representing 24 h showing the highest aerobic microbial activity
NOTE See Figure A.1. SIST EN 15590:2011

Real Dynamic Respiration Index RDRIh hourly Real Dynamic Respiration Index dm
dry matter in kg 5 Principle The method for determining the current rate of aerobic microbial activity specified in this European Standard is based on measuring the oxygen uptake rate by micro-organisms to biodegrade easily degradable organic matter of the sample itself under defined continuous airflow and adiabatic conditions. The test involves keeping the sample under observation in the respirometer (dynamic test system) for 1 day to 4 days according to the duration of the lag phase (if present), taking the index value at hourly intervals (RDRIh) (Clause 8). Moreover, if at the end of the fourth day, the RDRI trend is constant or growing, the respirometric test is prolonged with the acquisition of at least others 24 values (RDRI h) (see Figure A.1). 6 Apparatus The apparatus consists of: 6.1 Dessicator. 6.2 Continuous flow aerobic respirometer, composed of (see Figure 1):  hermetically sealed adiabatic reactor with the minimum operating volume expressed in litres, equal to or less than the average sample size expressed in millimeters and not greater than 30 mm (for example, for a sample of average size less than 10 mm, the reactor volume is 10 l); the reactor structure must force the input air to cross the entire sample before leaving the reactor, avoiding mixing the of input air and exhaust air;  reactor air-tightness verification system;  aeration system provided with flow regulator and capacity gauge;  system for sampling oxygen concentration in exhaust air (% v/v);  system of data acquisition continuously memorizing the measured parameters at 1 h intervals; the data memorized must be the average of all values read (at least 60) during the interval considered.
Key 1 air flow 2
air pump and probe for measuring of the temperature of the air inlet 3
flow adjustment and flow meter (0-200 l h-1) 4
probe for measuring of the temperature of the SRF
oxygen analyser and control and evaluation equipment l1 thickness of the external walls of the reactor1)
(70 mm ± 5 mm)
l2 internal diameter of reactor
l3 internal height of reactor l3/l2 1,344 ± 0,002
1)
An insulating materials shall be employed (i.e Polypropylene). Figure 1 — Diagram of the continuous flow aerobic respirometer 7 Procedure 7.1 Step 1 – Procedure sample preparation (if required). The size reduction procedure shall be done following EN 15443. SIST EN 15590:2011

(2) where RDRIh is the Hourly Real Dynamic Respiration Index (calculated every h); RDRIh is expressed as mg O2 kg-1 dm h-1; Q is the air flow in l h-1;
is the diff
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