ASTM STANDARD FOR POLYETHYLENE VERTICAL TANKS

There are stringent standards available for poly storage tanks made from Polyethylene.  Not every manufacturer makes tanks that adhere to these standards, but we do.  The standards are from the American Society for Testing and Materials.  They are the worlds largest source of standards.

When it comes to plastic tanks, the ASTM has standards that apply to the most popular storage tanks.  ASTM D 1998 is a set of standards that apply to Vertical Tanks over 500 gallons made from Polyethylene.  The standards are for tanks produced from cross-linkable polyethyelene (XLPE) and non cross-linkable polyethylene (HDPE).  They apply to closed top vertical tanks and to open top vertical tanks.  Two plastic tanks sitting side by side may look the same but if one is not up to the ASTM standards, that tank may be more likely to fail.

• Minimum wall thickness is defined based on the diameter, height and specific gravity rating of the tank.
• Size of the required vent is specified based on the size of the largest inlet or outlet fitting.
• Hydrostatic testing of each tank is required before it can be released.
• Specific labeling is specified and required that identifies the production information about the tank.