BS EN ISO 1716 specifies a method for the determination of the gross heat of combustion (QPCS) of products at constant volume in a bomb calorimeter.
In order to assess a product, each of its components shall be evaluated, taking into account the rules for non-substantial components. If a non-homogeneous product cannot be delaminated, its components shall be provided separately.
Information on the precision of the test method is given in Annex B.
This document supersedes EN ISO 1716:2002.
Contents:
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Test apparatus
5.1 General
5.2 Calorimetric bomb, constructed with the following characteristics
5.3 Calorimeter
6 Reagents and materials
7 Test specimens
7.1 General
7.2 Sampling
7.3 Determination of surface density
7.4 Grinding
7.5 Type of specimen
7.6 Conditioning
7.7 Number of test specimens
7.8 Determination of mass
7.9 Crucible method
7.10 “Cigarette” method
8 Test procedure
8.1 General
8.2 Calibration procedure
8.3 Standard test procedure
9 Expression of results
9.1 Corrections for manual apparatus
9.2 Corrections for isothermal calorimeter (see Annex C)
9.3 Calculation of the gross heat of combustion of the specimen
9.4 Calculation of the gross heat of combustion of the product
10 Test report
11 Validity of test results
Annex A (normative) Calculation of net heat of combustion
Annex B (informative) Precision of test method
Annex C (informative) Calculation by graph of the corrective term, c, necessary because of the cooling of the calorimeter
Annex D (informative) Example of determination of the gross heat of combustion of a non-homogeneous product
Bibliography