40 CFR 63.5350 - How do I distinguish between the water-resistant/specialty and nonwater-resistant leather product process operations?

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There are 24 Updates appearing in the Federal Register for 40 CFR Part 63. View below or at eCFR (GPOAccess)
§ 63.5350 How do I distinguish between the water-resistant/specialty and nonwater-resistant leather product process operations?
(a) Product process operations that finish leather for nonupholstery use are categorized as either water-resistant/specialty or nonwater-resistant product process operations. You must distinguish between the water-resistant/specialty and nonwater-resistant product process operations so that you can determine which HAP emission limit in Table 1 of this subpart applies to your affected source. Water-resistant and nonwater-resistant product process operations for nonupholstery use can be distinguished using the methods described in paragraph (b) of this section. Specialty leather product process operations for nonupholstery use can be distinguished using the criteria described in paragraph (c) of this section.
(b) To determine whether your product process operation produces water-resistant or nonwater-resistant leather, you must conduct the Maeser Flexes test method according to American Society for Testing and Materials (ASTM) Designation D2099-00 (incorporated by reference-see § 63.14) or a method approved by the Administrator.
(1) Statistical analysis of initial water penetration data performed to support ASTM Designation D2099-00 indicates that poor quantitative precision is associated with this testing method. Therefore, at a minimum, 36 leather substrate samples (i.e., three sections of leather substrate from at least 12 sides of leather), must be tested to determine the water-resistant characteristics of the leather. You must average the results of these tests to determine the final number of Maeser Flexes prior to initial water penetration.
(2) Results from leather samples indicating an average of 5,000 Maeser Flexes or more is considered a water-resistant product process operation, and results indicating less than 5,000 Maeser Flexes is considered a nonwater-resistant product process operation. However, leather samples resulting in less than 5,000 Maeser Flexes may be categorized as specialty leather in paragraph (c) of this section.
(3) 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 do change, whichever is sooner.
(c) To determine whether your product process operation produces specialty leather, you must meet the criteria in paragraphs (c)(1) and (2), or (c)(3) of this section:
(1) The leather must be a select grade of chrome tanned, bark retanned, or fat liquored leather.
(2) The leather must be retanned through the application of grease, waxes, and oil in quantities greater than 12 percent of the dry leather weight. Specialty leather is also finished with higher solvent-based finishes that provide rich color, luster, or an oily/tacky feel. Specialty leather products may include, but are not limited to, specialty shoe leather and top grade football leathers.
(3) The leather must be a high-quality dress or performance shoe leather that can withstand one of the visual tests in paragraph (c)(3)(i) or (ii) of this section:
(i) Moisture injection into the leather using vacuum mulling without signs of blistering.
(ii) Prolonged ironing at 200 °F for smoothing out surface roughness without finish lift off.
(4) 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 do change, whichever is sooner.
[67 FR 9162, Feb. 27, 2002, as amended at 70 FR 6360, Feb. 7, 2005]

Title 40 published on 2014-07-01.

The following are only the Rules published in the Federal Register after the published date of Title 40.

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  • 2015-08-19; vol. 80 # 160 - Wednesday, August 19, 2015
    1. 80 FR 50386 - Phosphoric Acid Manufacturing and Phosphate Fertilizer Production RTR and Standards of Performance for Phosphate Processing
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      ENVIRONMENTAL PROTECTION AGENCY
      Final rule.
      This final action is effective on August 19, 2015. The incorporation by reference of certain publications listed in the rule is approved by the Director of the Federal Register as of August 19, 2015.
      40 CFR Parts 60 and 63

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United States Code

Title 40 published on 2014-07-01

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

  • 2015-08-31; vol. 80 # 168 - Monday, August 31, 2015
    1. 80 FR 52426 - Notice of Final Approval for the Operation of Pressure-Assisted Multi-Point Ground Flares at The Dow Chemical Company and ExxonMobil Chemical Company and Notice of Receipt of Approval Request for the Operation of a Pressure-Assisted Multi-Point Ground Flare at Occidental Chemical Corporation
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      ENVIRONMENTAL PROTECTION AGENCY
      Notice; approval and request for comments.
      The AMEL for the MPGF at Dow's Propane Dehydrogenation Plant and Light Hydrocarbons Plant located at its Texas Operations site in Freeport, Texas, and ExxonMobil's Olefins Plant in Baytown, Texas, and Plastics Plant in Mont Belvieu, Texas are approved and effective August 31, 2015. Comments. Written comments on the AMEL request from OCC for their MPGF in Ingleside, Texas, or on the framework for streamlining future MPGF AMEL requests must be received on or before October 15, 2015. Public Hearing. Regarding the OCC MPGF in Ingleside, Texas, or the framework for streamlining future MPGF AMEL requests, if requested by September 8, 2015, we will hold a public hearing on September 15, 2015, from 1:00 p.m. [Eastern Standard Time] to 8:00 p.m. [Eastern Standard Time] in Corpus Christi, Texas. We will provide details on the public hearing on our Web site at: http://www.epa.gov/ttn/atw/groundflares/groundflarespg.html. To be clear, a public hearing will not be held unless someone specifically requests that the EPA hold a public hearing regarding the OCC MPGF or the framework for streamlining future MPGF AMEL requests. Please contact Ms. Virginia Hunt of the Sector Policies and Programs Division (E143-01), Office of Air Quality Planning and Standards, Environmental Protection Agency, Research Triangle Park, NC 27711; telephone number: (919) 541-0832; email address: hunt.virginia@epa.gov; to request a public hearing, to register to speak at the public hearing or to inquire as to whether a public hearing will be held. The last day to pre-register in advance to speak at the public hearing will be September 14, 2015.
      40 CFR Parts 60, 61 and 63

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