ISO 18125:2017
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The latest, up-to-date edition.
Solid biofuels — Determination of calorific value
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Language(s)
French, English
Published date
04-24-2017
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ISO 18125:2017 specifies a method for the determination of the gross calorific value of a solid biofuel at constant volume and at the reference temperature 25 °C in a bomb calorimeter calibrated by combustion of certified benzoic acid.
The result obtained is the gross calorific value of the analysis sample at constant volume with all the water of the combustion products as liquid water. In practice, biofuels are burned at constant (atmospheric) pressure and the water is either not condensed (removed as vapour with the flue gases) or condensed. Under both conditions, the operative heat of combustion to be used is the net calorific value of the fuel at constant pressure. The net calorific value at constant volume may also be used; formulae are given for calculating both values.
General principles and procedures for the calibrations and the biofuel experiments are presented in the main text, whereas those pertaining to the use of a particular type of calorimetric instrument are described in Annexes A to C. Annex D contains checklists for performing calibration and fuel experiments using specified types of calorimeters. Annex E gives examples to illustrate some of the calculations.
| DevelopmentNote |
Supersedes ISO/DIS 18125. (04/2017)
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| DocumentType |
Standard
|
| Pages |
58
|
| PublisherName |
International Organization for Standardization
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| Status |
Current
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| Standards | Relationship |
| DIN EN ISO 18125 E : 2017 | Identical |
| NF EN ISO 18125 : 2017 | Identical |
| NEN EN ISO 18125 : 2017 | Identical |
| NS EN ISO 18125 : 2017 | Identical |
| I.S. EN ISO 18125:2017 | Identical |
| PN-EN ISO 18125:2017-07 | Identical |
| SN EN ISO 18125 : 2017 | Identical |
| UNI EN ISO 18125 : 2018 | Identical |
| UNE-EN ISO 18125:2018 | Identical |
| SS-EN ISO 18125 : 2017 | Identical |
| BS EN ISO 18125:2017 | Identical |
| EN ISO 18125:2017 | Identical |
| DIN EN ISO 18125:2015-12 (Draft) | Identical |
| IS 17654 : 2021 | Identical |
| DIN EN ISO 18125:2017-08 | Identical |
| I.S. EN ISO 17225-5:2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 5: GRADED FIREWOOD (ISO 17225-5:2014) |
| DIN EN ISO 17225-4:2014-09 | Solid biofuels - Fuel specifications and classes - Part 4: Graded wood chips (ISO 17225-4:2014) |
| DIN EN ISO 17225-2 E : 2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 2: GRADED WOOD PELLETS (ISO 17225-2:2014) |
| 12/30259574 DC : 0 | BS EN ISO 17225-6 - SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 6: GRADED NON-WOODY PELLETS |
| BS EN ISO 17225-2:2014 | Solid biofuels. Fuel specifications and classes Graded wood pellets |
| 12/30259577 DC : 0 | BS EN ISO 17225-7 - SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 7: GRADED NON-WOODY BRIQUETTES |
| BS EN ISO 17225-5:2014 | Solid biofuels. Fuel specifications and classes Graded firewood |
| 12/30259568 DC : 0 | BS EN ISO 17225-4 - SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 4: GRADED WOOD CHIPS |
| BS EN ISO 17225-7:2014 | Solid biofuels. Fuel specifications and classes Graded non-woody briquettes |
| EN ISO 17225-2:2014 | Solid biofuels - Fuel specifications and classes - Part 2: Graded wood pellets (ISO 17225-2:2014) |
| UNE-EN ISO 17225-7:2014 | Solid biofuels - Fuel specifications and classes - Part 7: Graded non-woody briquettes (ISO 17225-7:2014) |
| CSA ISO 17225-6 : 2015 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 6: GRADED NON-WOODY PELLETS |
| I.S. EN ISO 17225-7:2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 7: GRADED NON-WOODY BRIQUETTES (ISO 17225-7:2014) |
| UNI EN ISO 17225-6 : 2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 6: GRADED NON-WOODY PELLETS |
| DIN EN ISO 17225-5:2014-09 | Solid biofuels - Fuel specifications and classes - Part 5: Graded firewood (ISO 17225-5:2014) |
| BS EN ISO 17225-4:2014 | Solid biofuels. Fuel specifications and classes Graded wood chips |
| PD ISO/TS 17225-8:2016 | Solid biofuels. Fuel specifications and classes Graded thermally treated and densified biomass fuels |
| UNI EN ISO 17225-5 : 2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 5: GRADED FIREWOOD |
| 12/30259561 DC : 0 | BS EN ISO 17225-2 - SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 2: GRADED WOOD PELLETS |
| CSA ISO 17225-5 : 2015 | BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 5: GRADED FIREWOOD |
| DIN EN ISO 17225-1:2014-09 | Solid biofuels - Fuel specifications and classes - Part 1: General requirements (ISO 17225-1:2014) |
| I.S. EN ISO 17225-6:2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 6: GRADED NON-WOODY PELLETS (ISO 17225-6:2014) |
| EN ISO 17225-5:2014 | Solid biofuels - Fuel specifications and classes - Part 5: Graded firewood (ISO 17225-5:2014) |
| I.S. EN ISO 17225-3:2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 3: GRADED WOOD BRIQUETTES (ISO 17225-3:2014) |
| ISO 19867-1:2018 | Clean cookstoves and clean cooking solutions — Harmonized laboratory test protocols — Part 1: Standard test sequence for emissions and performance, safety and durability |
| EN ISO 17225-3:2014 | Solid biofuels - Fuel specifications and classes - Part 3: Graded wood briquettes (ISO 17225-3:2014) |
| EN ISO 17225-4:2014 | Solid biofuels - Fuel specifications and classes - Part 4: Graded wood chips (ISO 17225-4:2014) |
| 12/30259565 DC : 0 | BS EN ISO 17225-3 - SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 3: GRADED WOOD BRIQUETTES |
| UNE-EN ISO 17225-5:2014 | Solid biofuels - Fuel specifications and classes - Part 5: Graded firewood (ISO 17225-5:2014) |
| BS EN ISO 17225-1:2014 | Solid biofuels. Fuel specifications and classes General requirements |
| CSA ISO 17225-4 : 2015 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 4: GRADED WOOD CHIPS |
| UNI EN ISO 17225-2 : 2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 2: GRADED WOOD PELLETS |
| UNE-EN ISO 17225-2:2014 | Solid biofuels - Fuel specifications and classes - Part 2: Graded wood pellets (ISO 17225-2:2014) |
| BS EN ISO 17225-3:2014 | Solid biofuels. Fuel specifications and classes Graded wood briquettes |
| DIN EN ISO 17225-4 E : 2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 4: GRADED WOOD CHIPS (ISO 17225-4:2014) |
| UNE-EN ISO 17225-6:2014 | Solid biofuels - Fuel specifications and classes - Part 6: Graded non-woody pellets (ISO 17225-6:2014) |
| I.S. EN ISO 17225-1:2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 1: GENERAL REQUIREMENTS (ISO 17225-1:2014) |
| I.S. EN ISO 17225-2:2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 2: GRADED WOOD PELLETS (ISO 17225-2:2014) |
| UNI EN ISO 17225-7 : 2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 7: GRADED NON-WOODY BRIQUETTES |
| UNI EN ISO 17225-4 : 2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 4: GRADED WOOD CHIPS |
| UNE-EN ISO 17225-3:2014 | Solid biofuels - Fuel specifications and classes - Part 3: Graded wood briquettes (ISO 17225-3:2014) |
| ISO 16993:2016 | Solid biofuels — Conversion of analytical results from one basis to another |
| CSA ISO 17225-7 : 2015 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 7: GRADED NON-WOODY BRIQUETTES |
| DIN EN ISO 17225-2:2014-09 | Solid biofuels - Fuel specifications and classes - Part 2: Graded wood pellets (ISO 17225-2:2014); German version EN ISO 17225-2:2014 |
| UNI EN ISO 17225-3 : 2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 3: GRADED WOOD BRIQUETTES |
| DIN EN ISO 17225-6:2014-09 | Solid biofuels - Fuel specifications and classes - Part 6: Graded non-woody pellets (ISO 17225-6:2014) |
| CSA ISO 17225-1 : 2015 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 1: GENERAL REQUIREMENTS |
| CSA ISO 17225-3 : 2015 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 3: GRADED WOOD BRIQUETTES |
| DIN EN ISO 17225-3 E : 2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 3: GRADED WOOD BRIQUETTES (ISO 17225-3:2014) |
| DIN EN ISO 17225-3:2014-09 | Solid biofuels - Fuel specifications and classes - Part 3: Graded wood briquettes (ISO 17225-3:2014) |
| EN ISO 17225-1:2014 | Solid biofuels - Fuel specifications and classes - Part 1: General requirements (ISO 17225-1:2014) |
| EN ISO 17225-6:2014 | Solid biofuels - Fuel specifications and classes - Part 6: Graded non-woody pellets (ISO 17225-6:2014) |
| EN ISO 17225-7:2014 | Solid biofuels - Fuel specifications and classes - Part 7: Graded non-woody briquettes (ISO 17225-7:2014) |
| CSA ISO 17225-2 : 2015 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 2: GRADED WOOD PELLETS |
| I.S. EN ISO 17225-4:2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 4: GRADED WOOD CHIPS (ISO 17225-4:2014) |
| ISO 17225-3:2014 | Solid biofuels Fuel specifications and classes Part 3: Graded wood briquettes |
| ISO 17225-7:2014 | Solid biofuels Fuel specifications and classes Part 7: Graded non-woody briquettes |
| ISO 17225-1:2014 | Solid biofuels Fuel specifications and classes Part 1: General requirements |
| ISO 17225-4:2014 | Solid biofuels Fuel specifications and classes Part 4: Graded wood chips |
| ISO 17225-2:2014 | Solid biofuels Fuel specifications and classes Part 2: Graded wood pellets |
| ISO 17225-6:2014 | Solid biofuels Fuel specifications and classes Part 6: Graded non-woody pellets |
| ISO 17225-5:2014 | Solid biofuels Fuel specifications and classes Part 5: Graded firewood |
| UNI EN ISO 17225-1 : 2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 1: GENERAL REQUIREMENTS |
| 12/30259558 DC : 0 | BS EN ISO 17225-1 - SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 1: GENERAL REQUIREMENTS |
| BS EN ISO 17225-6:2014 | Solid biofuels. Fuel specifications and classes Graded non-woody pellets |
| DIN EN ISO 17225-7:2014-09 | Solid biofuels - Fuel specifications and classes - Part 7: Graded non-woody briquettes (ISO 17225-7:2014) |
| DIN EN ISO 17225-1 E : 2014 | SOLID BIOFUELS - FUEL SPECIFICATIONS AND CLASSES - PART 1: GENERAL REQUIREMENTS (ISO 17225-1:2014) |
| UNE-EN ISO 17225-1:2014 | Solid biofuels - Fuel specifications and classes - Part 1: General requirements (ISO 17225-1:2014) |
| UNE-EN ISO 17225-4:2014 | Solid biofuels - Fuel specifications and classes - Part 4: Graded wood chips (ISO 17225-4:2014) |
| ISO 14780:2017 | Solid biofuels — Sample preparation |
| ISO 1928:2009 | Solid mineral fuels Determination of gross calorific value by the bomb calorimetric method and calculation of net calorific value |
| ISO 16559:2014 | Solid biofuels Terminology, definitions and descriptions |
| ISO 16948:2015 | Solid biofuels Determination of total content of carbon, hydrogen and nitrogen |
| ISO 18134-3:2015 | Solid biofuels — Determination of moisture content — Oven dry method — Part 3: Moisture in general analysis sample |
| ISO 10304-1:2007 | Water quality Determination of dissolved anions by liquid chromatography of ions Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulfate |
| ISO 18122:2015 | Solid biofuels — Determination of ash content |
| ISO 18135:2017 | Solid Biofuels — Sampling |
| ISO 18134-2:2017 | Solid biofuels — Determination of moisture content — Oven dry method — Part 2: Total moisture — Simplified method |
| ISO 651:1975 | Solid-stem calorimeter thermometers |
| ISO 16994:2016 | Solid biofuels — Determination of total content of sulfur and chlorine |
| ISO 652:1975 | Enclosed-scale calorimeter thermometers |
| ISO 17225-1:2014 | Solid biofuels Fuel specifications and classes Part 1: General requirements |
| ISO 18134-1:2015 | Solid biofuels — Determination of moisture content — Oven dry method — Part 1: Total moisture — Reference method |
| ISO 16993:2016 | Solid biofuels — Conversion of analytical results from one basis to another |
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