Table of Contents

Section 1 Scope And General

1.1 Scope

1.2 Application

1.3 Referenced Documents

1.4 Definitions

1.5 Principle

Section 2 Apparatus

2.1 Ambient Temperature Measurement System

2.2 Appliance Temperature Measurement System

2.3 Weight Determination Equipment

2.4 Mass Flow Measurement System

2.5 Ambient Air Pressure Measurement System

2.6 Anemometer

Section 3 Test Enclosure And Flue

3.1 General

3.2 Room Insulation

3.3 Length Of Flue

3.4 Exposed Flue Within Calorimeter Room

3.5 Air Temperatures

3.6 Air Pressure

3.7 Wall Temperatures

3.8 Air Flow

3.9 Calibration

Section 4 Measurement Accuracy

4.1 Temperature And Mass Flow

4.2 Calorimeter Room Scales

Section 5 Test Fuel

5.1 General

5.2 Fuel Chamber Usable Volume

5.3 Test Fuel Load

5.4 Firewood Piece Dimensions

Section 6 Test Procedure

6.1 Preparation Before Testing

6.2 Fuel Loading

6.3 Burn Rates

6.4 Burn Cycle

6.5 Number Of Burn Cycles

6.6 Data-Recording Interval

6.7 Operation Of The Appliance

6.8 Appliances With A Water-Heating Facility

6.9 Ducted Appliances

6.10 Post-Burn Appliance Air-Flow Test

Section 7 Calculation And Reporting Of Results

7.1 Calculations

7.2 Report

Section 8 Marking

8.1 General

8.2 Compulsory Permanent Marking

8.3 Fuel Types

8.4 Additional Marking

8.5 Retesting Exemption

Appendix A - Firewood Determination—Worked Example