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ide for Gas Transmission and Distribution Piping Systems, and technical publications of plastic pipe and fitting manufacturers. ASME B31.8-2010 Table 842.2.9-1 Nominal Values for Coefficients of Thermal Expansion of Thermoplastic Pipe Materials Nominal fittings shall be protected from long-term exposure to direct sunlight. 842.3.3 Installation Provisions (a) Above Ground Installation. Plastic piping may be General Material Designation installed above ground if it is one of the following: (1) encased in metal pipe that is protected against atmospheric corrosion; protected against deterioration (e.g., high-temperature degradation); and protected against external damage PE 2306 PE 3306 PE 3406 9.0 (5.0) 9.0 (5.0) 9.0 (5.0) (2) installed on a bridge in accordance with GRI Report 00/0154, Design Guide for Pipes Across Bridges PVC PVC PVC PVC PVC 1120 1220 2110 2112 2116 3.0 3.5 5.0 4.5 4.0 (1.7) (1.9) (2.8) (2.5) (2.2) (3) installed for plastic service lines as permitted in para. 849.4.2(b) Plastic pipe shall not be used to support external loads. Encased plastic pipe shall be able to withstand anticipated temperatures without deteriorating or PB 2110 7.2 (4.0) decreasing in strength below the design limitations stated in paras. 842.2.2 and 842.2.3. When protecting GENERAL NOTES: (a) Individual compounds may differ from values in this table as much UL download as ��10%. More exact values for specific commercial products may be obtained from the manufacturers. (b) Abbreviations: PVC p polyvinyl chloride, PE p polyethylene, and PB p polybutylene. 842.3.2 Inspection and Handling Provisions. Plastic piping components are susceptible to UL pdf damage by mis- handling. Gouges, cuts, kinks, or other forms of damage may cause failure. Care shall be exercised during han- dling and installation to prevent such damage. (a) Plastic pipe and tubing shall be carefully inspected for cuts, scratches, gouges, and other imperfections before use, and any pipe or tubing containing h ide for Gas Transmission and Distribution Piping Systems, and technical publications of plastic pipe and fitting manufacturers. ASME B31.8-2010 Table 842.2.9-1 Nominal Values for Coefficients of Thermal Expansion of Thermoplastic Pipe Materials Nominal fittings shall be protected from long-term exposure to direct sunlight. 842.3.3 Installation Provisions (a) Above Ground Installation.
Plastic piping may be General Material Designation ( Coefficients of Thermal Expansion ASTM D 696, installed above ground if it is one of the following: (1) encased in metal pipe that is protected against atmospheric corrosion; protected against deterioration (e.g., high-temperature degradation); and protected against external damage PE 2306 PE 3306 PE 3406 9.0 (5.0) 9.0 (5.0) 9.0 (5.0) (2) installed on a bridge in accordance with GRI Report 00/0154, Design Guide for Pipes UL download Across Bridges (3) installed for plastic service lines as permitted in para. 849.4.2(b) Plastic pipe shall not be used to support external loads. Encased plastic pipe shall be able to withstand anticipated temperatures without deteriorating or PB 2110 7.2 (4.0) decreasing in strength below the design limitations stated in paras. 842.2.2 and 842.2.3. When protecting GENERAL NOTES: (a) Individual compounds may differ from values in this table as much as ��10%. More exact values for specific commercial products may be obtained from the manufacturers. (b) Abbreviations: PVC p polyvinyl chloride, PE p polyethylene, and PB p polybutylene. 842.3.2 Inspection and Handling Provisions. Plastic piping components are susceptible to damage by mis- handling. Gouges, cuts, kinks, or other forms of damage may cause failure. Care shall be exercised during han- dling and installation to prevent such damage. (a) Plastic pipe and tubing shall be carefully inspected for cuts, scratches, gouges, and other imperfections before use, and any pipe or tubing containing h
