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ISO
ISO 18125:2017

ISO 18125:2017

Current

Current

The latest, up-to-date edition.

Solid biofuels — Determination of calorific value

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

French, English

Published date

24-04-2017

Publisher

International Organization for Standardization

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Hardcopy - French
PDF - French
PDF 3 Users - French
PDF 5 Users - French
PDF 9 Users - French
Hardcopy - English
PDF - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
Hardcopy - French
PDF - French
PDF 3 Users - French
PDF 5 Users - French
PDF 9 Users - French
Hardcopy - English
PDF - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
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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)
DocumentType
Standard
Pages
58
PublisherName
International Organization for Standardization
Status
Current

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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