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Volatile Organic Compound (VOC) Concentration Limits for Architectural Coatings Regulations

Version of section 12 from 2009-10-14 to 2009-10-27:


Marginal note:General formula

  •  (1) Subject to subsection (2), the VOC concentration of an architectural coating set out in the schedule, diluted to the maximum recommendation of the manufacturer, importer or seller, excluding the volume of any water and excluded compounds, must be determined using the following equation:

    VOC concentration = (Ws - Ww - Wec) ÷ (Vm - Ww - Vec)

    where

    VOC concentration
    is the VOC concentration of an architectural coating, in grams of VOC per litre of coating;
    Ws
    is the weight of volatiles, in grams;
    Ww
    is the weight of water, in grams;
    Wec
    is the weight of excluded compounds, in grams;
    Vm
    is the volume of architectural coating, in litres;
    Vw
    is the volume of water, in litres; and
    Vec
    is the volume of excluded compounds, in litres.
  • Marginal note:Low solids coating

    (2) The VOC concentration of a low solids coating set out in the schedule, diluted to the maximum recommendation of the manufacturer, importer or seller, including the volume of any water and excluded compounds, must be determined using the following equation:

    VOCls concentration = (Ws - Ww - Wec) ÷ Vm

    where

    VOCls concentration
    is the VOC concentration of a low solids (ls) coating, in grams of VOC per litre of coating,
    Ws
    is the weight of volatiles, in grams,
    Ww
    is the weight of water, in grams,
    Wec
    is the weight of excluded compounds, in grams, and
    Vm
    is the volume of architectural coating, in litres.
  • Marginal note:Colourant

    (3) The VOC concentration of an architectural coating must be determined excluding any colourant that is added after the tint base is manufactured or imported, as the case may be, and packaged for sale.

  • SOR/2009-264, err.(F), Vol. 143, No. 21
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