ДСТУ EN ISO 21654:2022 Паливо тверде відновлювальне із відходів. Метод визначення теплотворної здатності (EN ISO 21654:2021, IDT; ISO 21654:2021, IDT)



ДСТУ EN ISO 21654:2022
(EN ISO 21654:2021, IDT; ISO 21654:2021, IDT)

Паливо тверде відновлювальне із відходів.
Метод визначення теплотворної здатності

 

 
   
 
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 Principle

4.1 Gross calorific value

4.2 Net calorific value

5 Reagents

6 Laboratory conditions

7 Apparatus

7.1 General

7.2 Auxiliary equipment

7.3 Balances

8 Preparation of test sample

9 Calorimetric procedure

9.1 General

9.2 Preparing the combustion vessel for measurement

9.3 Assembling the calorimeter

9.4 Combustion reaction and temperature measurements

9.5 Analysis of products of combustion

9.6 Corrected temperature rise 0

9.7 Reference temperature

10 Calibration

10.1 Principle

10.2 Calibration reference

10.3 Valid working range of the effective heat capacity є

10.4 Ancillary contributions

10.5 Calibration procedure

10.6 Calculation of effective heat capacity for the individual experiment

10.7 Precision of the mean value of the effective heat capacity E

10.8 Repetition of the determination of effective heat capacity

11 Gross calorific value

11.1 General

11.2 Combustion

11.3 Calculation of gross calorific value

11.4 Expression of results

11.5 Calculation to other bases

12 Precision

12.1 Repeatability limit

12.2 Reproducibility limit

13 Calculation of net calorific value at constant pressure

13.1 General

13.2 Calculations

14 Test report

Annex A (normative) Adiabatic combustion vessel calorimeters

Annex В (normative) Isoperibol and static-jacket combustion vessel calorimeters

Annex C (normative) Automated combustion vessel calorimeters

Annex D (normative) Removed ash contributors

Annex E (informative) Checklists for the design and procedures of combustion experiments

Annex F (informative) Examples to illustrate the main calculations used in this document if an automated (adiabatic) combustion vessel calorimeter is used for determinations

Annex G (informative) List of symbols used in this document

Annex H (informative) Flow chart for a routine calorific value determination

Annex I (informative) Interlaboratory test results

Annex J (informative) Additional terms for the basis of results expression

Annex К (informative) Environmental aspects

Bibliography