ASTM D3485-97

NFPA 70

National Electrical Code Available from the National Fire Protection Assn., 470 Atlantic Ave., Boston, MA 02210.

F2160-22a

Standard Specification for Solid Wall High Density Polyethylene (HDPE) Conduit Based on Controlled Outside Diameter (OD) (Includes all amendments and changes 9/15/2022).

F412-25a

Standard Terminology Relating to Plastic Piping Systems (Includes all amendments and changes 10/8/2025).

Underwriter Laboratories, Inc – UL 1990

, Nonmetallic Underground Conduit with Conductors. Available from Underwriters Laboratories (UL), 2600 N.W. Lake Rd., Camas, WA 98607-8542, http://www.ul.com.

IEEE Standard 1210

Standard Tests for Determining Compatibility of Cable-Pulling Lubricants with Wire and Cable Available from Institute of Electrical and Electronics Engineers, Inc. (IEEE), 445 Hoes Ln., Piscataway, NJ 08854, http://www.ieee.org.

Handbook of Polyethylene Pipe

TR-46 (2009)

Technical Reference, Guidelines for Use of Mini-Horizontal Directional Drilling for Placement of High Density Polyethylene Pipe (2009)

TR-47/2011

Pipe Stiffness and Flattening Tests in Coilable HDPE conduit; and Its Relationship to burial Depth in Conduit Applications

D1505-25

Standard Test Method for Density of Plastics by the Density-Gradient Technique

D1600-18

Standard Terminology for Abbreviated Terms Relating to Plastics (Withdrawn 2024)

D1693-21

Standard Test Method for Environmental Stress-Cracking of Ethylene Plastics

D2122-22

Standard Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings

D2412-26

Standard Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel-Plate Loading

D2444-25

Standard Practice for Determination of the Impact Resistance of Thermoplastic Pipe and Fittings by Means of a Tup (Falling Weight)

D3350-25

Standard Specification for Polyethylene Plastics Pipe and Fittings Materials

D4883-18

Standard Test Method for Density of Polyethylene by the Ultrasound Technique

NEMA TC 7-2013

Smooth-Wall Coilable Electrical Polyethylene Conduit Available from National Electrical Manufacturers Association (NEMA), 1300 N. 17th St., Suite 1752, Rosslyn, VA 22209, http://www.nema.org.

D638-22

Standard Test Method for Tensile Properties of Plastics

D790-25

Standard Test Methods for Flexural Properties of Unreinforced and Reinforced Plastics and Electrical Insulating Materials

D792-20

Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement

D1238-26

Standard Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer

D618-21

Standard Practice for Conditioning Plastics for Testing