ISO 13833:2013 pdf download.Stationary source emissions -Determination of the ratio of biomass (biogenic) and fossil-derived carbon dioxide – Radiocarbon sampling and determination.
ISO 13833 specifies sampling methods and analysis methods for the determination of the ratio of biomass- and fossil-derived carbon dioxide (C02) in the CO2 from exhaust gases of stationary sources, based on the radiocarbon (‘4C isotope) method. The lower limit of application is a biogenic to total CO2 fraction of 0,02. The working range is a biogenic to total CO2 fraction of 0,02 to 1,0.
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.
ISO 7934, Stationary source emissions — Determination of the mass concentration of sulfur dioxide — Hydrogen peroxide/barium perchlorate/Thorin method
ISO 10396, Stationary source emissions — Sampling for the automated determination of gas emission concentrations for permanently-installed monitoring systems
ISO 15713, Stationary source emissions — Sampling and determination of gaseous fluoride content
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
biogenic
produced in natural processes by living organisms but not fossilized or derived from fossil resources
3.2
biomass
material of biological origin excluding material embedded in geological formation or transformed to fossil
3.3
isotope abundance
fraction of atoms of a particular isotope of an element
3.4
organic carbon
amount of carbon bound in an organic material
3.5
percentage modern carbon
pmC
normalized and standardized value for the amount of the 14C isotope in a sample, calculated relative to the standardized and normalized 14C isotope amount of oxalic acid standard reference material, SRM 4990c
Note 1 to entry: In 2009, the value of 100 % blo-based carbon was set at 105 pmC.
3.8
sample
quantity of material, representative of a larger quantity for which the property is to be determined
3.9
sample preparation
all the actions taken to obtain representative analyses, samples or test portions from the original sample
3.10
test portion
quantity of material drawn from the test sample (or from the laboratory sample if both are the same) and on which the test or observation is actually carried out
3.11
beta-particle
electron or positron which has been emitted by an atomic nucleus or neutron in a nuclear transformation [ISO 921:1997, definition 81]
4 Symbols and abbreviated terms
4.1 Symbols
A disintegrations per second
b default content (in pmC) of 100 % biomass, produced and harvested in 2011
E counting rate.ISO 13833 pdf download.