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// CODE SNIPPET

722.4.1.1.3 Units With Filled Cores

Building Code 2021 of Illinois > 7 Fire and Smoke Protection Features > 722 Calculated Fire Resistance > 722.4 Clay Brick and Tile Masonry > 722.4.1 Masonry Walls > 722.4.1.1 Equivalent Thickness > 722.4.1.1.3 Units With Filled Cores
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The equivalent thickness of the hollow clay masonry units is the actual thickness of the unit where completely filled with loose-fill materials of: sand, pea gravel, crushed stone, or slag that meet ASTM C33 requirements; pumice, scoria, expanded shale, expanded clay, expanded slate, expanded slag, expanded fly ash, or cinders in compliance with ASTM C331; or perlite or vermiculite meeting the requirements of ASTM C549 and ASTM C516, respectively.

Related Code Sections


722.4.1.1.3 Fire and Smoke Protection Features, Units With Filled Cores
The equivalent thickness of the hollow clay masonry units is the actual thickness of the unit where completely filled with loose-fill materials ...
Building Code 2021 of Illinois > 7 Fire and Smoke Protection Features > 722 Calculated Fire Resistance > 722.4 Clay Brick and Tile Masonry > 722.4.1 Masonry Walls > 722.4.1.1 Equivalent Thickness > 722.4.1.1.3 Units With Filled Cores
722.4.1.1.3 Fire and Smoke Protection Features, Units With Filled Cores
The equivalent thickness of the hollow clay masonry units is the actual thickness of the unit where completely filled with loose-fill materials ...
Building Code 2018 of Illinois > 7 Fire and Smoke Protection Features > 722 Calculated Fire Resistance > 722.4 Clay Brick and Tile Masonry > 722.4.1 Masonry Walls > 722.4.1.1 Equivalent Thickness > 722.4.1.1.3 Units With Filled Cores
8.3.2.4.4 General Requirements, Filling the Buffer With Oil
The buffer, after being installed, shall be filled with oil to a level at or between the manufacturer's gauge line or lines. The oil shall conform ...
Safety Code for Elevators and Escalators 2019 of Illinois > 8 General Requirements > 8.3 Engineering Tests, Type Tests, and Certification > 8.3.2 Type Tests of Car and Counterweight Oil Buffers > 8.3.2.4 Installation of the Buffer and Preparations for Tests > 8.3.2.4.4 Filling the Buffer With Oil
(D) Wiring Methods and Materials, Conductor Fill
The maximum number of conductors or cables in NUCC shall not exceed that permitted by the percentage fill in Table 1, Chapter 9 ...
National Electrical Code 2017 of Illinois > 3 Wiring Methods and Materials > 354 Nonmetallic Underground Conduit With Conductors: Type NUCC > 354.100 Construction > (D) Conductor Fill
(D) Wiring Methods and Materials, Conductor Fill
The maximum number of conductors or cables in NUCC shall not exceed that permitted by the percentage fill in Table 1, Chapter 9 ...
National Electrical Code 2020 of Illinois > 3 Wiring Methods and Materials > 354 Nonmetallic Underground Conduit With Conductors: Type NUCC > 354.100 Construction > (D) Conductor Fill
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