Biaxially oriented thermoplastic pipette, and method and apparatus for forming same

A pipette comprising:

• a tubular body arranged between a tip and a mouthpiece, and having a longitudinal axis extending between the tip and the mouthpiece;
• and
• at least three witness features protruding from an exterior surface of the tubular body, wherein each witness feature of the at least three witness features has a maximum lengthwise dimension that is substantially parallel to the longitudinal axis, and is radially spaced apart from each other witness feature of the at least three witness features;
• wherein the tubular body comprises a biaxially oriented thermoplastic material, and wherein a maximum height of each witness feature of the at least three witness features is no greater than 0.02 mm.

A pipette comprising:

• a tubular body arranged between a tip and a mouthpiece, and having a longitudinal axis extending between the tip and the mouthpiece;
• wherein the tubular body comprises a biaxially oriented thermoplastic material;
• wherein the tubular body comprises a nominal thickness in a range of from 0.25 mm to 0.5 mm;
• and
• at least one witness feature protruding from an exterior surface of the tubular body and having a maximum lengthwise dimension non-parallel to the longitudinal axis and a maximum height of no greater than 0.01 mm;
• and
• wherein the exterior surface of the tubular body comprises a plurality of graduated markings corresponding to volumetric capacity of portions of an interior of the tubular body.