Q-2, r. 35.4 - Regulation respecting halocarbon destruction projects eligible for the issuance of offset credits

Schedule Disposition versions

2021-07-15

APPENDIX E

(ss. 24 and 25)

METHOD TO DETERMINE THE EFFICIENCY OF THE EXTRACTION PROCESS FOR HALOCARBONS CONTAINED IN FOAM

1. Calculation methods for the initial quantity of halocarbons contained in foam

To calculate the extraction efficiency, the promoter must first calculate the quantity of halocarbons contained in the foam prior to its removal from the appliances, based on the storage capacity of the appliances using method A, or based on foam samples using method B.

Method A – Calculation of the initial quantity of halocarbons contained in foam based on the storage capacity of the appliances

The promoter may calculate the initial quantity of halocarbons contained in foam using Equation 14 and data from Table 1:

Equation 14

QF init = (N1 × M1) + (N2 × M2) + (N3 × M3) + (N4 × M4)

Where:

QF init = Initial quantity of halocarbon of type i contained in foam prior to removal from appliances, in metric tonnes;

N1 = Number of appliances of type 1;

N2 = Number of appliances of type 2;

N3 = Number of appliances of type 3;

N4 = Number of appliances of type 4;

M1 = Metric tonnes of halocarbon per appliance of type 1;

M2 = Metric tonnes of halocarbon per appliance of type 2;

M3 = Metric tonnes of halocarbon per appliance of type 3;

M4 = Metric tonnes of halocarbon per appliance of type 4.

Table 1 – Quantity of halocarbon by type of appliance

Type of appliance	Storage capacity (SC)	Metric tonnes of halocarbons per appliance
Type 1	SC ˂ 180 litres	0.00024
Type 2	180 litres ≤ SC ˂ 350 litres	0.00032
Type 3	350 litres ≤ SC ˂ 500 litres	0.0004
Type 4	SC ≥ 500 litres	0.00048

Method B – Calculation of the initial quantity of halocarbons contained in foam based on samples

The initial quantity of halocarbons contained in foam may be calculated using samples from at least 10 appliances and the following method:

(1) have the initial concentration of halocarbons in the foam determined by a laboratory independent of the promoter in accordance with Division 4 of Appendix D and in the following manner:

(a) by cutting 4 foam samples from each appliance (left side, right side, top, bottom) using a reciprocating saw, each sample being at least 10 cm2 and the full thickness of the insulation;

(b) by sealing the cut edges of each foam sample using aluminum tape or a similar product that prevents off gassing;

(c) by individually labelling each sample to record appliance model and site of sample (left, right, top, bottom);

(d) by analyzing the samples using the procedure in paragraph 4; the samples may be analyzed individually (4 analysis per appliance) or a single analysis may be done using equal masses of foam from each sample (1 analysis per appliance);

(e) based on the average concentration of halocarbons in the samples from each appliance, by calculating the 90% upper confidence limit of the halocarbon concentration in the foam, and using that value as the “CF” factor in Equation 15 to calculate the initial quantity of halocarbons contained in foam from appliances;

(2) determine the quantity of foam removed from the appliances processed, namely the factor “QF rec” in equation 15, using a default value of 5.85 kg per appliance and multiplying by the number of appliances processed or using the following method:

(a) by separating and collecting all foam residual, which may be in a fluff, powder or pelletized form, and documenting the processed to demonstrate that no significant quantity of foam residual is lost in the air or other waste streams;

(b) by separating non-foam components in the residual (such as metal or plastic);

(c) by weighing the recovered foam residual prior to halocarbon extraction to calculate the total mass of foam recovered;

(3) calculate the initial quantity of halocarbons contained in foam prior to removal from appliances using equation 15:

Equation 15

QF init = QF rec × CF

Where:

QF init = Initial quantity of halocarbon of type i contained in foam prior to removal from appliances, in metric tonnes;

QF rec = Total quantity of foam recovered prior to extraction of halocarbons, in metric tonnes;

CF = Concentration of halocarbon in foam prior to removal from appliances, in metric tonnes of halocarbon per metric tonne of foam;

(4) analyze the foam samples from appliance in accordance with the following requirements:

(a) the analysis of the content and mass ratio of the halocarbons from foam must be done at a laboratory in accordance with Division 4 of Appendix D;

(b) the analysis must be done using the heating method to extract halocarbons from the foam in the foam samples, as described in the article “Release of Fluorocarbons from Insulation Foam in Home Appliances during Shredding” published by Scheutz, Fredenslund, Kjeldsen and Tant in the Journal of the Air & Waste Management Association (December 2007, Vol. 57, pages 1452-1460), and set out below:

i. each sample must be prepared to a thickness no greater than 1 cm, placed in a 1123 ml glass bottle, weighed using a calibrated scale, and sealed with Teflon-coated septa and aluminum caps;

ii. to release the halocarbons, the sample must be incubated in an oven for 48 hours at 140 °C;

iii. when cooled to room temperature, gas samples must be redrawn from the headspace and analyzed by gas chromatography;

iv. the lids must be removed after analysis, and the headspace must be flushed with atmospheric air for approximately 5 minutes using a compressor; afterwards, the septa and caps must be replaced and the bottles subjected to a second 48-hour heating step to drive out the remaining halocarbons from the sampled foam;

v. when cooled down to room temperature after the second heating step, gas samples must be redrawn from the headspace and analyzed by gas chromatography;

(c) the quantity of each type of halocarbon recovered must then de divided by the total mass of the initial foam samples prior to analysis to determine the mass ratio of halocarbons present, in metric tonnes of halocarbons per metric tonne of foam.

2. Calculation method for extraction efficiency

The promoter must calculate the extraction efficiency using Equations 16 and 17:

Equation 16

EE	=	QF final
		QF init

Where:

EE = Extraction efficiency;

QF final = Final quantity of halocarbons contained in foam extracted and sent for destruction, calculated using Equation 17, in metric tonnes;

QF init = Initial quantity of halocarbon of type i contained in foam prior to removal from appliances, calculated using Equation 14 or 15, as the case may be, in metric tonnes;

Equation 17

Where:

QF final = Final quantity of halocarbons contained in foam extracted and sent for destruction, in metric tonnes;

i = Type of halocarbon;

n = Number of types of halocarbons;

QF final, i = Final quantity of halocarbons of type i extracted and sent for destruction, determine in accordance with the method referred to in Appendix D, in metric tonnes of halocarbon of type i.

M.O. 2021-06-11, App. E.

Not in force

APPENDIX E

(ss. 24 and 25)

METHOD TO DETERMINE THE EFFICIENCY OF THE EXTRACTION PROCESS FOR HALOCARBONS CONTAINED IN FOAM

1. Calculation methods for the initial quantity of halocarbons contained in foam

To calculate the extraction efficiency, the promoter must first calculate the quantity of halocarbons contained in the foam prior to its removal from the appliances, based on the storage capacity of the appliances using method A, or based on foam samples using method B.

Method A – Calculation of the initial quantity of halocarbons contained in foam based on the storage capacity of the appliances

The promoter may calculate the initial quantity of halocarbons contained in foam using Equation 14 and data from Table 1:

Equation 14

QF init = (N1 × M1) + (N2 × M2) + (N3 × M3) + (N4 × M4)

Where:

QF init = Initial quantity of halocarbon of type i contained in foam prior to removal from appliances, in metric tonnes;

N1 = Number of appliances of type 1;

N2 = Number of appliances of type 2;

N3 = Number of appliances of type 3;

N4 = Number of appliances of type 4;

M1 = Metric tonnes of halocarbon per appliance of type 1;

M2 = Metric tonnes of halocarbon per appliance of type 2;

M3 = Metric tonnes of halocarbon per appliance of type 3;

M4 = Metric tonnes of halocarbon per appliance of type 4.

Table 1 – Quantity of halocarbon by type of appliance

Type of appliance	Storage capacity (SC)	Metric tonnes of halocarbons per appliance
Type 1	SC ˂ 180 litres	0.00024
Type 2	180 litres ≤ SC ˂ 350 litres	0.00032
Type 3	350 litres ≤ SC ˂ 500 litres	0.0004
Type 4	SC ≥ 500 litres	0.00048

Method B – Calculation of the initial quantity of halocarbons contained in foam based on samples

The initial quantity of halocarbons contained in foam may be calculated using samples from at least 10 appliances and the following method:

(1) have the initial concentration of halocarbons in the foam determined by a laboratory independent of the promoter in accordance with Division 4 of Appendix D and in the following manner:

(a) by cutting 4 foam samples from each appliance (left side, right side, top, bottom) using a reciprocating saw, each sample being at least 10 cm2 and the full thickness of the insulation;

(b) by sealing the cut edges of each foam sample using aluminum tape or a similar product that prevents off gassing;

(c) by individually labelling each sample to record appliance model and site of sample (left, right, top, bottom);

(d) by analyzing the samples using the procedure in paragraph 4; the samples may be analyzed individually (4 analysis per appliance) or a single analysis may be done using equal masses of foam from each sample (1 analysis per appliance);

(e) based on the average concentration of halocarbons in the samples from each appliance, by calculating the 90% upper confidence limit of the halocarbon concentration in the foam, and using that value as the “CF” factor in Equation 15 to calculate the initial quantity of halocarbons contained in foam from appliances;

(2) determine the quantity of foam removed from the appliances processed, namely the factor “QF rec” in equation 15, using a default value of 5.85 kg per appliance and multiplying by the number of appliances processed or using the following method:

(a) by separating and collecting all foam residual, which may be in a fluff, powder or pelletized form, and documenting the processed to demonstrate that no significant quantity of foam residual is lost in the air or other waste streams;

(b) by separating non-foam components in the residual (such as metal or plastic);

(c) by weighing the recovered foam residual prior to halocarbon extraction to calculate the total mass of foam recovered;

(3) calculate the initial quantity of halocarbons contained in foam prior to removal from appliances using equation 15:

Equation 15

QF init = QF rec × CF

Where:

QF init = Initial quantity of halocarbon of type i contained in foam prior to removal from appliances, in metric tonnes;

QF rec = Total quantity of foam recovered prior to extraction of halocarbons, in metric tonnes;

CF = Concentration of halocarbon in foam prior to removal from appliances, in metric tonnes of halocarbon per metric tonne of foam;

(4) analyze the foam samples from appliance in accordance with the following requirements:

(a) the analysis of the content and mass ratio of the halocarbons from foam must be done at a laboratory in accordance with Division 4 of Appendix D;

(b) the analysis must be done using the heating method to extract halocarbons from the foam in the foam samples, as described in the article “Release of Fluorocarbons from Insulation Foam in Home Appliances during Shredding” published by Scheutz, Fredenslund, Kjeldsen and Tant in the Journal of the Air & Waste Management Association (December 2007, Vol. 57, pages 1452-1460), and set out below:

i. each sample must be prepared to a thickness no greater than 1 cm, placed in a 1123 ml glass bottle, weighed using a calibrated scale, and sealed with Teflon-coated septa and aluminum caps;

ii. to release the halocarbons, the sample must be incubated in an oven for 48 hours at 140 °C;

iii. when cooled to room temperature, gas samples must be redrawn from the headspace and analyzed by gas chromatography;

iv. the lids must be removed after analysis, and the headspace must be flushed with atmospheric air for approximately 5 minutes using a compressor; afterwards, the septa and caps must be replaced and the bottles subjected to a second 48-hour heating step to drive out the remaining halocarbons from the sampled foam;

v. when cooled down to room temperature after the second heating step, gas samples must be redrawn from the headspace and analyzed by gas chromatography;

(c) the quantity of each type of halocarbon recovered must then de divided by the total mass of the initial foam samples prior to analysis to determine the mass ratio of halocarbons present, in metric tonnes of halocarbons per metric tonne of foam.

2. Calculation method for extraction efficiency

The promoter must calculate the extraction efficiency using Equations 16 and 17:

Equation 16

EE	=	QF final
		QF init

Where:

EE = Extraction efficiency;

QF final = Final quantity of halocarbons contained in foam extracted and sent for destruction, calculated using Equation 17, in metric tonnes;

QF init = Initial quantity of halocarbon of type i contained in foam prior to removal from appliances, calculated using Equation 14 or 15, as the case may be, in metric tonnes;

Equation 17

Where:

QF final = Final quantity of halocarbons contained in foam extracted and sent for destruction, in metric tonnes;

i = Type of halocarbon;

n = Number of types of halocarbons;

QF final, i = Final quantity of halocarbons of type i extracted and sent for destruction, determine in accordance with the method referred to in Appendix D, in metric tonnes of halocarbon of type i.

M.O. 2021-06-11, App. E.