This European Standard specifies a method for the determination of the bio-based carbon content in products, based on the 14C content measurement.<\/p>\n
This European Standard also specifies two test methods to be used for the determination of the 14C content from which the bio-based carbon content is calculated:<\/p>\n
Method A: Liquid scintillation-counter method (LSC);<\/p>\n<\/li>\n
Method B: Accelerator mass spectrometry (AMS).<\/p>\n<\/li>\n<\/ul>\n
A third method, Method C: Beta ionization (BI) can also be used for the determination of the 14C content and is described in Annex D (informative)<\/p>\n
The bio-based carbon content is expressed by a fraction of sample mass or as a fraction of the total carbon content. This calculation method is applicable to any product containing carbon, including bio composites.<\/p>\n
\nNOTE This European Standard does not provide the methodology for the calculation of the biomass content of a sample see prEN 16785\u20131 [5] and prEN 16785\u20132 [6].<\/p>\n<\/blockquote>\n
PDF Catalog<\/h4>\n
\n
\n PDF Pages<\/th>\n PDF Title<\/th>\n<\/tr>\n \n 2<\/td>\n undefined <\/td>\n<\/tr>\n \n 8<\/td>\n 1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n\n 9<\/td>\n 4 Symbols and abbreviations <\/td>\n<\/tr>\n \n 10<\/td>\n 5 Principle <\/td>\n<\/tr>\n \n 11<\/td>\n 6 Determination of the 14C content
6.1 General
6.2 Principle
6.3 Sampling
6.4 Procedure for the conversion of the carbon present in the sample to a suitable sample for 14C determination
6.5 Measurements <\/td>\n<\/tr>\n\n 12<\/td>\n 7 Calculation of the bio-based carbon content
7.1 General
7.2 Reference value for 100 % bio-based carbon <\/td>\n<\/tr>\n\n 13<\/td>\n 7.3 Calculation method
7.3.1 Calculation of the bio-based carbon content by dry mass xB
7.3.1.1 \ufeff14C content determined by Method A (LSC) or Method C (BI)
7.3.1.2 \ufeff14C content determined by Method B (AMS) <\/td>\n<\/tr>\n\n 14<\/td>\n 7.3.2 Calculation of the bio-based carbon content xTCB as a fraction of TC
7.3.3 Examples <\/td>\n<\/tr>\n\n 15<\/td>\n 7.3.4 Examples of calculations xTCB
8 Performance characteristics
9 Test report <\/td>\n<\/tr>\n\n 17<\/td>\n Annex A (informative)Procedures for sampling of products
A.1 General <\/td>\n<\/tr>\n\n 18<\/td>\n Annex B (normative)Procedure for the conversion of the carbon present in the sample to a suitable sample for 14C determination
B.1 General
B.2 Sample preparation
B.3 Preparation for 14C measurement
B.3.1 General <\/td>\n<\/tr>\n\n 19<\/td>\n B.3.2 Reagents and materials
B.4 Combustion of the sample
B.4.1 Combustion of the sample in a calorimetric bomb <\/td>\n<\/tr>\n\n 20<\/td>\n B.4.2 Combustion of the sample in a tube furnace or a combustion apparatus <\/td>\n<\/tr>\n \n 21<\/td>\n B.4.3 Direct LSC measurement on the product
B.5 Standardization of LSC and BI measurement results <\/td>\n<\/tr>\n\n 22<\/td>\n B.6 Standardization of AMS measurement results
B.7 Symbols and abbreviations <\/td>\n<\/tr>\n\n 23<\/td>\n Annex C (normative)Method A – Liquid scintillation-counter method (LSC)
C.1 General
C.2 Principle
C.3 Reagents and materials
C.4 Apparatus <\/td>\n<\/tr>\n\n 24<\/td>\n C.5 Procedure
C.5.1 General
C.5.2 Benzene conversion
C.5.3 Direct absorption of the CO2 in a carbamate solution
C.5.4 Measurement <\/td>\n<\/tr>\n\n 25<\/td>\n C.5.5 Blank correction
C.6 Calculation of the results <\/td>\n<\/tr>\n\n 26<\/td>\n Annex D (informative)Method C – Beta-ionization (BI)
D.1 General
D.2 Principle
D.3 Reagents and materials <\/td>\n<\/tr>\n\n 27<\/td>\n D.4 Apparatus
D.5 \ufeff\u02dcProcedure\u2122 <\/td>\n<\/tr>\n\n 28<\/td>\n D.6 \ufeff\u02dc Calculation of the results\u2122 <\/td>\n<\/tr>\n \n 29<\/td>\n Annex E (normative)Method B – Accelerator Mass Spectrometry (AMS)
E.1 General
E.2 \ufeff\u02dcPrinciple\u2122
E.3 \ufeff\u02dcReagents and materials\u2122
E.4 \ufeff\u02dcApparatus\u2122 <\/td>\n<\/tr>\n\n 30<\/td>\n E.5 \ufeff\u02dcProcedure\u2122 <\/td>\n<\/tr>\n \n 31<\/td>\n E.6 \ufeff\u02dcCalculation of the results\u2122 <\/td>\n<\/tr>\n \n 32<\/td>\n Annex F (informative)Performance characteristics <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Bio-based products. Bio-based carbon content. Determination of the bio-based carbon content using the radiocarbon method<\/b><\/p>\n
\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n BSI<\/b><\/a><\/td>\n 2018<\/td>\n 38<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":302760,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1000,2641],"product_tag":[],"class_list":{"0":"post-302755","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-71-040-40","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/302755","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/302760"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=302755"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=302755"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=302755"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}