EN 16166:2012

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Schlamm, behandelter Bioabfall und Boden - Bestimmung von adsorbierbaren organisch gebundenen Halogenen (AOX)Boue, biodéchet traité et sol - Détermination des composés organiques halogénés adsorbables (AOX)Sludge, treated biowaste and soil - Determination of adsorbable organically bound halogens (AOX)13.080.10Chemical characteristics of soils13.030.20Liquid wastes. SludgeICS:Ta slovenski standard je istoveten z:EN 16166:2012SIST EN 16166:2013en,fr,de01-februar-2013SIST EN 16166:2013SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16166
August 2012 ICS 13.030.01; 13.080.10 English Version
Sludge, treated biowaste and soil - Determination of adsorbable organically bound halogens (AOX)
Boues, biodéchets traités et sols - Détermination des composés organiques halogénés adsorbables (AOX)
Schlamm, behandelter Bioabfall und Boden - Bestimmung von adsorbierbaren organisch gebundenen Halogenen (AOX) This European Standard was approved by CEN on 24 May 2012.
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.
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Repeatability and reproducibility data . 13A.1 Materials used in the interlaboratory comparison study . 13A.2 Interlaboratory comparison results . 14Annex B (informative)
Storage of activated carbon . 15Annex C (informative)
Schematic diagram of an AOX apparatus . 16Bibliography . 17 SIST EN 16166:2013

WARNING — Persons using this European Standard should be familiar with usual laboratory practice. This European Standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions. IMPORTANT — It is absolutely essential that tests conducted according to this European Standard be carried out by suitably trained staff.
This European Standard is intended for analysis of sludge, treated biowaste or soil in concentrations ranging from 5 mg/kg dry matter to approximately 6 g/kg dry matter. The exact concentration range covered depends on the instrument used for determination. 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. EN 16179, Sludge, treated biowaste and soil — Guidance for sample pretreatment EN ISO 3696, Water for analytical laboratory use — Specification and test methods (ISO 3696) EN ISO 5667-15, Water quality — Sampling — Part 15: Guidance on the preservation and handling of sludge and sediment samples (ISO 5667-15) 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 adsorbable organically bound halogens AOX equivalent amount of chlorine, bromine, and iodine contained in organic compounds, expressed as chloride when determined according to this European Standard 4 Principle Activated carbon is added to a dried, homogenised solid sample. Inorganic halides are eluted and at the same time water soluble organic compounds are adsorbed onto the activated carbon by shaking with acidified nitrate solution. The loaded carbon/sample mixture is combusted in an oxygen stream. The hydrogen halides produced are absorbed followed by determination of the halide ions by an argentometric titration, such as microcoulometry. The result is expressed as the mass concentration of chloride. 5 Interferences Sparingly soluble or occluded inorganic halides are included in the determination and may, if present, give a significant positive bias. Adequate washing is essential to remove inorganic interference. NOTE Halogenated substances that volatilise at 105 °C are lost.
Organic bromine and iodine compounds may, during combustion, lead to the formation of elemental bromine or iodine respectively or to the formation of halogen oxides. The determination of these AOX fractions may be incomplete, thus leading to negative bias. SIST EN 16166:2013
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