Changes

<p>Compost shall be stable, humus-like material produced from the aerobic decomposition of organic feedstocks, composted and cured until maturity.  Compost shall be produced under the Compost Council of [http://www.compost.org/CQA-En.html Canada’s Compost Quality Alliance] (CQA) certification program through testing by an [http://www.omafra.gov.on.ca/english/crops/resource/soillabs.htm| OMAFRA accredited soil laboratory], and certified as category ‘AA’ under [https://www.ontario.ca/page/ontario-compost-quality-standards#section-2 Ontario Compost Quality Standards.]</p>

<table class = "table table-striped table-responsive">

<caption><strong>Specifications for category 'AA' product under Ontario Compost Quality Standards</strong></caption>

 

<tr class ='success'><th>Parameter</th><th>Acceptable range</th></tr>

Compost shall be stable, humus-like material produced from the aerobic decomposition of organic feedstocks, composted and cured until maturity.  Compost shall be produced under the Compost Council of [http://www.compost.org/CQA-En.html Canada’s Compost Quality Alliance] (CQA) certification program through testing by an [http://www.omafra.gov.on.ca/english/crops/resource/soillabs.htm| OMAFRA accredited soil laboratory], and certified as category ‘AA’ under [https://www.ontario.ca/page/ontario-compost-quality-standards#section-2 Ontario Compost Quality Standards.]

<tr><td>pH</td><td>5.5 - 8.5</td></tr>

 

<tr><td>Soluble Salts (EC)</td><td>< 4 mS/cm</td></tr>

<div class="toccolours mw-collapsible mw-collapsed">

<tr><td>Moisture Content</td><td>< 50% by weight</td></tr>

'''Specifications for category 'AA' product under Ontario Compost Quality Standards'''

<tr><td>Organic matter</td><td>> 30% by dry weight</td></tr>

<div class="mw-collapsible-content">

<tr><td>C/N ratio</td><td>12 to 22</td></tr><tr> 

{| class="wikitable"

<td>Pathogens</td><td>See: [https://www.ontario.ca/page/ontario-compost-quality-standards#section-2 MOECC 2012]</td></tr>

!Parameter

<tr><td>Maturity</td><td>See: [https://www.ontario.ca/page/ontario-compost-quality-standards#section-2 MOECC 2012]</td></tr>

!Acceptable range

<tr><td>Particle size</td><td>100% < 12.7 mm (1/2”)</td></tr>

<tr><td>Foreign Material</td><td>< 1.0% by dry weight > 3 mm<br>< 0.5% plastic by dry weight<br> no foreign matter > 25 mm per 500 mL<br> no sharp foreign matter that could cause harm to humans or animals.</td></tr>

|[[pH]]||5.5 - 8.5

<tr><td>Arsenic</td><td>≤ 13 mg/kg dry weight</td></tr>

<tr><td>Cadmium</td><td>≤ 3 mg/kg dry weight</td></tr>

|[[Soluble Salts]] (EC)||< 4 mS/cm

<tr><td>Chromium</td><td>≤ 210 mg/kg dry weight</td</tr>

<tr><td>Cobalt</td><td>≤ 34 mg/kg dry weight</td></tr>

|Moisture Content||< 50% by weight

<tr><td>Copper</td><td>≤ 100 mg/kg dry weight</td></tr>

<tr><td>Lead</td><td>≤ 150 mg/kg dry weight</td></tr>

|[[Organic matter]]||> 30% by dry weight

<tr><td>Mercury</td><td>≤ 0.8 mg/kg dry weight</td></tr>

<tr><td>Molybdenum</td><td>≤ 5 mg/kg dry weight</td></tr>

|C/N ratio||12 to 22

<tr><td>Nickel</td><td>≤ 62 mg/kg dry weight</td>

</tr><tr><td>Selenium</td><td>≤ 2 mg/kg dry weight</td></tr><tr>

|Pathogens||See: [https://www.ontario.ca/page/ontario-compost-quality-standards#section-2 MOECC 2012]

<td>Sodium, Percent Saturation</td><td>< 2%</td></tr>

<tr><td>Zinc</td><td>≤ 500 mg/kg dry weight</td></tr><tr>

|Maturity||See: [https://www.ontario.ca/page/ontario-compost-quality-standards#section-2 MOECC 2012]

</table>

|Particle size||100% < 12.7 mm (1/2”)

|Foreign Material||< 1.0% by dry weight > 3 mm<br>< 0.5% plastic by dry weight<br> no foreign matter > 25 mm per 500 mL<br> no sharp foreign matter that could cause harm to humans or animals.

|Arsenic||≤ 13 mg/kg dry weight

|Cadmium||≤ 3 mg/kg dry weight

|Chromium||≤ 210 mg/kg dry weight

|Cobalt||≤ 34 mg/kg dry weight

|Copper||≤ 100 mg/kg dry weight

|Lead||≤ 150 mg/kg dry weight

|Mercury||≤ 0.8 mg/kg dry weight

|Molybdenum||≤ 5 mg/kg dry weight

|Nickel||≤ 62 mg/kg dry weight

|Selenium||≤ 2 mg/kg dry weight

|Sodium, Percent Saturation||< 2%

|Zinc||≤ 500 mg/kg dry weight

</div></div>

[[Category:materials]]

[[Category:materials]]