40 CFR Part 63, Subpart NNN, Appendix A to Subpart NNN of Part 63 - Method for the Determination of LOI

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View PDF at GPO Pt. 63, Subpt. NNN, App. A
Appendix A to Subpart NNN of Part 63—Method for the Determination of LOI
1. Purpose
The purpose of this test is to determine the LOI of cured blanket insulation. The method is applicable to all cured board and blanket products.
2. Equipment
2.1Scale sensitive to 0.1 gram.
2.2Furnace designed to heat to at least 540 °C (1,000 °F) and controllable to ±10 °C (50 °F).
2.3Wire tray for holding specimen while in furnace.
3. Procedure
3.1Cut a strip along the entire width of the product that will weigh at least 10.0 grams. Sample should be free of dirt or foreign matter.
Remove all facing from sample.
3.2Cut the sample into pieces approximately 12 inches long, weigh to the nearest 0.1 gram and record. Place in wire tray. Sample should not be compressed or overhang on tray edges.
On air duct products, remove shiplaps and overspray.
3.3Place specimen in furnace at 540 °C (1,000 °F), ±10 °C (50 °F) for 15 to 20 minutes to insure complete oxidation. After ignition, fibers should be white and should not be fused together.
3.4Remove specimen from the furnace and cool to room temperature.
3.5Weigh cooled specimen and wire tray to the nearest 0.1 gram. Deduct the weight of the wire tray and then calculate the loss in weight as a percent of the original specimen weight.

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.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-11-25; vol. 79 # 227 - Tuesday, November 25, 2014
    1. 79 FR 70102 - National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Texas
      GPO FDSys XML | Text
      Direct final rule; delegation of authority.
      This rule is effective on January 26, 2015 without further notice, unless EPA receives relevant adverse comment by December 26, 2014. If EPA receives such comment, EPA will publish a timely withdrawal in the Federal Register informing the public that this rule will not take effect.
      40 CFR Part 63

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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 63 after this date.

  • 2014-12-12; vol. 79 # 239 - Friday, December 12, 2014
    1. 79 FR 73872 - Phosphoric Acid Manufacturing and Phosphate Fertilizer Production RTR and Standards of Performance for Phosphate Processing; Extension of Comment Period
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      Notice of proposed rulemaking; extension of public comment period.
      Comments. The public comment period for the proposed rule published in the Federal Register on November 7, 2014, (79 FR 66512) is being extended for 30 days to January 21, 2015.
      40 CFR Parts 60 and 63