BS EN 16179:2012 pdf download – Sludge, treated biowaste and soil — Guidance for sample pretreatment
he pretreatment of samples aims at prepatng oe nenreton oSr.T1”Tsample.
For determining inorganic chemical and physico-chemical parameters this European Standard describesprocedures (see 10.2) to prepare:
test samples for tests under field moist conditions;
test samples for testing after drying, crushing, grinding, sieving etc.;
test samples of liquid sludge.
For determination of organic compounds three pretreatment methods are specified:
a pretreatment method if volatile organic compounds are to be measured (see 10.3.2);
a pretreatment method if moderately volatile to non-volatile organic compounds are to be measured andthe result of the following analysis will be accurate and reproducible (see 10.3.3);
a pretreatment method if moderately volatile to non-volatile organic compounds are to be measured andthe extraction procedure prescribes a field moist sample or if only indicative results are required (see10.3.4).
The choice of the method depends above all on the volatility of the analyte. t also depends on the particlesize distribution of the material (see Clause 5 and 8.3), the heterogeneity of the sample and the followinganalytical procedure.
2Normative references
The following documents,in whole or in part,are normatively referenced in this document and areindispensable 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 15933,Sludge, treated biowaste and soil— Determination of pH
EN 15934,Sludge, treated biowaste, soil and waste— Calculation of dry matter fraction after determination ofdry residue or water content
EN ISO 5667-13, Water quality— Sampling — Part 13: Guidance on sampling of sludges (ISO 5667-13)
ISO 10381-8,Soil quality — Sampling — Part 8: Guidance on sampling of stockpiles
ISO18512,Soil quality —Guidance on long and short term storage of soil samples
3Terms and definitions
For the purposes of this document, the following terms and definitions apply.
composite sampleaverage sampleaggregated sample
two or more increments/subsamples mixed together in appropriate proportions – either discretely orcontinuously (blended composite sample) – from which the average value of a desired characteristic may beobtained
[SOURCE: ISO 11074:2005,4.3.3]
extraneous material
materials not belonging to the matrix or particle fraction to be analysed
Note i to entry: Due to the variety of the matrices covered by this European Standard the definition of extraneousmaterial is very broad.The decision to remove certain parts of the material depends on the analytical task.
field sample
quantity (mass or volume) of material obtained through sampling without any subsampling[SOURCE: EN 14899:2005,3.3]
sampling unit collected by a single operation of a sampling device and being used in a composite sample
Note 1 to entry: When an individual portion of material is collected in a single operation of a sampling device and thisportion is analysed as an individual unit, it is by definition a sample.
[SOURCE: ISO 11074:2005,4.1.8]
laboratory sample
sample intended for laboratory inspection or testing
Note 1 to entry: When the laboratory sample is further prepared(reduced) by subdividing,mixing,grinding or bycombinations of these operations, the result is the test sample.When no preparation of the laboratory sample is required,the laboratory sample is the test sample. A test portion is removed from the test sample for the performance of the test oranalysis.