40 CFR 63.5345 - How do I distinguish between the two upholstery product process operations?

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§ 63.5345 How do I distinguish between the two upholstery product process operations?
(a) Product process operations that finish leather for use in automobile and furniture seat coverings are categorized as an upholstery product process operation. There are two upholstery product process operations subject to the requirements of this subpart—operations with less than 4 grams of finish add-on per square foot, and operations with 4 grams or more of finish add-on per square foot. You must distinguish between the two upholstery product process operations so that you can determine which HAP emission limit in Table 1 of this subpart applies to your affected source.
(b) You must determine finish add-on by calculating the difference in mass before and after the finishing process. You may use an empirical method to determine the amount of finish add-on applied during the finishing process, as described in paragraphs (b)(1) through (4) of this section:
(1) Weigh a one square foot representative section of polyester film, paper, cardstock, or equivalent material substrate to be finished. This will provide an initial mass and surface area prior to starting the finishing process.
(2) Use a scale with an accuracy of at least 5 percent of the mass in grams of the representative section of substrate.
(3) Upon completion of these measurements, process the representative section of substrate on the finishing line as you would for a typical section of leather.
(4) After the finishing and drying process, weigh the representative section of substrate to determine the final mass. Divide the net mass in grams gained on the representative section by its surface area in square feet to determine grams per square foot of finish add-on. Equation 1 of this section illustrates this calculation, as follows:
Where:
Finish Add-On = Grams per square foot of finish add-on applied to a representative section of polyester film or equivalent material substrate.
Final Mass = Final mass in grams of representative section of polyester film or equivalent material substrate, after finishing and drying.
Initial Mass = Initial mass in grams of representative section of polyester film or equivalent material substrate, prior to finishing.
Surface Area = Surface area in square feet of a representative section of polyester film or equivalent material substrate.
(c) Any appropriate engineering units may be used for determining the finish add-on. However, finish add-on results must be converted to the units of grams of finish add-on per square foot of leather processed. If multiple representative leather sections are analyzed, then use the average of these measurements for selecting the appropriate product process operation.
(d) For each leather product with a unique finish application, you must maintain records to support how the leather product was categorized to a product process operations type. You must repeat the leather product categorization to a product process operation type no less frequently than once every 5 years if the applied finish chemical characteristics of the leather product have not changed, or when the applied finish chemical characteristics of the leather product change, whichever is sooner.
[67 FR 9162, Feb. 27, 2002, as amended at 70 FR 6360, Feb. 7, 2005]

Title 40 published on 2013-07-01

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  • 2014-03-27; vol. 79 # 59 - Thursday, March 27, 2014
    1. 79 FR 17340 - National Emission Standards for Hazardous Air Pollutant Emissions: Group IV Polymers and Resins; Pesticide Active Ingredient Production; and Polyether Polyols Production
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      ENVIRONMENTAL PROTECTION AGENCY
      Final rule.
      This final action is effective on March 27, 2014. The incorporation by reference of certain publications listed in this final rule was approved by the Director of the Federal Register as of March 27, 2014.
      40 CFR Part 63

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Title 40 published on 2013-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR 63 after this date.

  • 2014-07-02; vol. 79 # 127 - Wednesday, July 2, 2014
    1. 79 FR 37850 - National Emission Standards for Hazardous Air Pollutants: Off-Site Waste and Recovery Operations
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      ENVIRONMENTAL PROTECTION AGENCY
      Proposed rule.
      Comments. Comments must be received on or before August 18, 2014. A copy of comments on the information collection provisions should be submitted to the Office of Management and Budget (OMB) on or before August 1, 2014. Public Hearing. We do not plan to conduct a public hearing unless requested. If requested, we will hold a public hearing on July 17, 2014. To request a hearing, please contact the person listed in the following FOR FURTHER INFORMATION CONTACT section by July 14, 2014.
      40 CFR Part 63