40 CFR Part 63, Subpart NNN, Appendix C to Subpart NNN of Part 63 - Method for the Determination of Product Density

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There are 7 Updates appearing in the Federal Register for 40 CFR 63. View below or at eCFR (GPOAccess)
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View PDF at GPO Pt. 63, Subpt. NNN, App. C
Appendix C to Subpart NNN of Part 63—Method for the Determination of Product Density
1. Purpose
The purpose of this test is to determine the product density of cured blanket insulation. The method is applicable to all cured board and blanket products.
2. Equipment
One square foot (12 in. by 12 in.) template, or templates that are multiples of one square foot, for use in cutting insulation samples.
3. Procedure
3.1Obtain a sample at least 30 in. long across the machine width. Sample should be free of dirt or foreign matter.
3.2Lay out the cutting pattern according to the plant's written procedure for the designated product.
3.2Cut samples using one square foot (or multiples of one square foot) template.
3.3Weigh product and obtain area weight (lb/ft2).
3.4Measure sample thickness.
3.5Calculate the product density:
Density (lb/ft3) = area weight (lb/ft2)/thickness (ft)

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
      ENVIRONMENTAL PROTECTION AGENCY
      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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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 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
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      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