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Chromium Electroplating, Chromium Anodizing and Reverse Etching Regulations (SOR/2009-162)

Regulations are current to 2020-07-28 and last amended on 2020-03-16. Previous Versions

Use of a Point Source (continued)

Inspection and Maintenance of Control Devices

  •  (1) Subject to subsection (3), in relation to each control device used, every person referred to in section 4 must prepare and implement an inspection and maintenance plan requiring an inspection at least every three months to verify that

    • (a) the control device’s internal and external surfaces and its external components, including its control panel, are free from any fracture or deformation;

    • (b) the ductwork between the control device and any tank does not leak and is not broken;

    • (c) the filtering media within the control device are free of any blockage and there is no buildup that would affect the operation of the device; and

    • (d) there are no visible signs of hexavalent chromium compounds at the exit of the control device.

  • (2) In relation to each control device used with a composite mesh pad system, the inspection and maintenance plan must also include the following tasks:

    • (a) verifying that there is no buildup on the mesh pads; and

    • (b) if the mesh pads are not continuously washed, washing the mesh pads for at least 20 minutes

      • (i) if the manufacturer’s recommendations provide for less frequent washing than twice during every eight hours of operation, in accordance with the manufacturer’s recommendations, or

      • (ii) in any other case, at least twice during every eight hours of operation with an interval of at least three hours between washes.

  • (3) If a point source is being used to control the release of hexavalent chromium compounds from a tank located at a facility at which chromium electroplating, chromium anodizing or reverse etching is carried out on the day on which this section comes into force, subsection (1) applies 30 months after that day.

  • (4) Every person implementing the inspection and maintenance plan must

    • (a) if they identify any defect in the course of implementing the plan, cease any chromium electroplating, chromium anodizing or reverse etching, correct the defect and verify that the defect has been corrected before resuming any of those activities; and

    • (b) keep a record that contains the following information:

      • (i) the date on which each inspection and maintenance task was performed,

      • (ii) a description of each inspection and maintenance task performed,

      • (iii) the date on which each defect was identified, and

      • (iv) a description of the measures taken to correct the defect.

Limiting the Surface Tension

  •  (1) Subject to subsection (2), every person that controls the release of hexavalent chromium compounds from a tank by limiting the surface tension of the solution containing a hexavalent chromium compound must maintain that surface tension in the tank at a value of less than

    • (a) 35 dyn/cm if the surface tension is measured with a tensiometer; or

    • (b) 45 dyn/cm if the surface tension is measured with a stalagmometer.

  • (2) If surface tension limiting is being used to control the release of hexavalent chromium compounds from a tank located at a facility at which chromium electroplating, chromium anodizing or reverse etching is carried out on the day on which this section comes into force, subsection (1) applies three months after that day.

  • (3) Every person referred to in subsection (1) must measure and record, for each tank, the surface tension of the solution containing the hexavalent chromium compound once every day during which the tank is used, and the measurements must be taken at least 16 hours apart.

  • (4) The surface tension must be measured in accordance with the instructions of the tensiometer or stalagmometre manufacturer, as the case may be.

  • (5) If a tank is unused for more than 24 consecutive hours, every person referred to in subsection (1) must, before resuming chromium electroplating, chromium anodizing or reverse etching, measure the surface tension of the solution containing the hexavalent chromium compound in the tank and, if necessary, reduce the surface tension to less than the value prescribed in paragraphs (1)(a) or (b), as applicable.

  • SOR/2020-46, s. 2

Use of a Tank Cover

Conditions

 Every person that controls the release of hexavalent chromium compounds from a tank by using a tank cover must ensure that the cover is closed while chromium electroplating, chromium anodizing or reverse etching is taking place and that the cover has the following characteristics:

  • (a) it completely encloses the open surface area of the tank;

  • (b) it has a seal that joins the cover to the tank;

  • (c) it has a membrane that is inset in the cover, that has a minimum surface area of 0.28 m2/kA of current and that has pore openings not larger than 1 µm; and

  • (d) it has an evacuation device that is attached to the outside of the cover and that has a HEPA filter with pore openings not larger than 0.1 µm.

Inspection and Maintenance of Tank Covers

  •  (1) Subject to subsection (2), every person referred to in section 8 must prepare and implement an inspection and maintenance plan that

    • (a) is in accordance with the instructions of the manufacturer of the tank cover; and

    • (b) includes at least the following tasks:

      • (i) induction of an external pressure on the membrane while the tank cover is closed and the tank is in operation to verify that the membrane moves outward, each day that the cover is used,

      • (ii) drainage of the air inlet by purging the air valves at the end of each day during which the person operates the tank or at the end of each plating, anodizing or reverse etching cycle and, if the membrane does not move inward during the purge, verification of the seal of the tank cover,

      • (iii) inspection of the access doors and membranes at least once per week to determine whether the tank cover leaks and whether there are any tears in the membrane,

      • (iv) drainage of the evacuation device into the tank at least once per week,

      • (v) inspection of the membrane for perforations at least once per month using a light source that illuminates the membrane,

      • (vi) inspection, at least once per month, of all clamps that hold the tank cover closed in order to verify that they keep the cover closed, and replacement of any defective clamps,

      • (vii) inspection of all piping to and all piping from the evacuation device at least once every three months to verify that there are no leaks and no evidence of deterioration, and

      • (viii) replacement of the HEPA filter on the evacuation device at least once per year.

  • (2) If a tank cover is being used to control the release of hexavalent chromium compounds from a tank located at a facility at which chromium electroplating, chromium anodizing or reverse etching is carried out on the day on which this section comes into force, subsection (1) applies six months after that day.

  • (3) Every person performing an inspection or maintenance task under the inspection and maintenance plan must

    • (a) if they identify any defect in the course of the inspection or maintenance task, cease any chromium electroplating, chromium anodizing or reverse etching, correct the defect and verify that the defect has been corrected before resuming any of those activities; and

    • (b) keep a record that contains the following information:

      • (i) the date on which each inspection and maintenance task was performed,

      • (ii) a description of each inspection and maintenance task performed,

      • (iii) the date on which each defect was identified, and

      • (iv) a description of the measures taken to correct the defect.

  •  (1) Subject to subsection (2), every person referred to in section 8 must, before the first use of the tank cover, and every three months after that, conduct a smoke test while the cover is closed to determine whether it leaks.

  • (2) If a tank cover is being used to control the release of hexavalent chromium compounds from a tank located at a facility at which chromium electroplating, chromium anodizing or reverse etching is carried out on the day on which this section comes into force, the person must conduct the smoke test no later than six months after that day and every three months after that.

  • (3) The smoke test must be conducted using a smoke test device that generates 15 to 30 m3 of smoke for every 2 m2 of tank surface and using a process that allows the smoke test device to burn completely inside the tank while the tank cover is closed and to fill the space under the cover with smoke.

  • (4) If the smoke test detects a release of smoke from the tank cover, the person must, before using the tank for chromium electroplating, chromium anodizing or reverse etching, perform the necessary repairs and repeat the test until there are no leaks of smoke from the cover.

  • (5) The person must record the dates on which the smoke tests were conducted, the results of those tests, the name of the manufacturer of the smoke test device, a description of the steps taken in conducting each test and the sequence in which those steps were performed and, if applicable, the location of any leaks and the measures taken to correct any defects.

 
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