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Line 1: − <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>+ + − {|class="wikitable"+ − |+ Specifications for category 'AA' product under Ontario Compost Quality Standards+ − |- + − !style="background: darkcyan; color: white"|Parameter+ − + + + + − + − + − + Line 24:
Line 28: + + + + + + + + + + + + + + + + + + + + + + + + − + − <table class = "table table-striped table-responsive"> − <caption><strong>Specifications for category 'AA' product under Ontario Compost Quality Standards</strong></caption> − <tr><td>Arsenic</td><td>≤ 13 mg/kg dry weight</td></tr> − <tr><td>Cadmium</td><td>≤ 3 mg/kg dry weight</td></tr> − <tr><td>Chromium</td><td>≤ 210 mg/kg dry weight</td</tr> − <tr><td>Cobalt</td><td>≤ 34 mg/kg dry weight</td></tr> − <tr><td>Copper</td><td>≤ 100 mg/kg dry weight</td></tr> − <tr><td>Lead</td><td>≤ 150 mg/kg dry weight</td></tr> − <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> − <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> − <td>Sodium, Percent Saturation</td><td>< 2%</td></tr> − <tr><td>Zinc</td><td>≤ 500 mg/kg dry weight</td></tr><tr> − +
no edit summary
[[File:Wood based compost.jpg|thumb|wood based compost]]
STEP are currently undertaking research into the quality of compost for use in LID installations.
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.]
<div class="toccolours mw-collapsible mw-collapsed">
'''Specifications for category 'AA' product under Ontario Compost Quality Standards'''
!style="background: darkcyan; color: white"|Acceptable range
<div class="mw-collapsible-content">
{| class="wikitable"
!Parameter
!Acceptable range
|-
|-
|pH||5.5 - 8.5
|[[pH]]||5.5 - 8.5
|-
|-
|Soluble Salts (EC)||< 4 mS/cm
|[[Soluble Salts]] (EC)||< 4 mS/cm
|-
|-
|Moisture Content||< 50% by weight
|Moisture Content||< 50% by weight
|-
|-
|Organic matter||> 30% by dry weight
|[[Organic matter]]||> 30% by dry weight
|-
|-
|C/N ratio||12 to 22
|C/N ratio||12 to 22
|-
|-
|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.
|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>
</table>
[[Category:materials]]
[[Category:materials]]
[[Category: testing]]