LCS Laboratory Inc. is proud to offer a new laboratory service to support manufacturers and importers of candles in meeting the requirements of the Canada Consumer Product Safety Act, specifically SOR/2016-165 – Consumer Products Containing Candle Testing Regulation.

Regulatory Background

Under Canadian law, Section 5(b) of SOR/2016-165 mandates that:

“A candle must not reignite spontaneously after it is extinguished.”

This safety standard exists to prevent fire hazards associated with delayed or spontaneous reignition, especially when a candle is left unattended shortly after use.

Why Spontaneous Reignition Occurs

Spontaneous reignition is most likely to occur:

  • At the end of a long burning cycle, when the wax is melted and hot.

  • If the wick continues to glow after the flame is extinguished
  • When the wax contains volatile organic compounds (VOCs) at elevated concentrations

After the visible flame is extinguished, a glowing wick can act as an ignition source for evaporated VOCs or wax vapours. A reigniting flame poses a hidden hazard, especially when the user assumes the candle is no longer burning.

Our Testing Procedure

At LCS Laboratory, we follow a standardized protocol to assess spontaneous reignition:

  1. Controlled Burn – The candle is burned for 4 hours in a controlled environment to simulate a typical use cycle.

  2. Extinguishing the Flame – At the end of the burn cycle, the candle is extinguished using a cup

  3. Observation Period – The candle is monitored for 5 minutes:

    • The wick continues to glow

    • The flame reappears spontaneously within the observation window

Why Choose LCS Laboratory

  • Specialized in consumer product and air quality testing
  • Fast turnaround and clear, actionable reports

  • Optional, additional, Candle Fire safety testing

Request a Quote or Submit Samples

Ensure your candles meet Canadian safety standards and protect your brand from regulatory setbacks. Contact us today for a quote or to discuss sample submission requirements.

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