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Helpful Formulas

Mils vs. Microns

  • Mil – A unit of measurement in thousandths of an inch. (i.e., .001 = one thousandth of an inch or 1.0 mil). Generally used to designate the thickness of LLDPE products.
  • Mic – Short for micron, one thousandth of a millimeter. Generally used to designate the thickness of HDPE products.

 

For the EXACT conversion:

  • Mils to Microns: (Number of Mils) x 25.4 (i.e., .75 mil = 19 microns).
  • Microns to Mils: (Number of Microns) / 25.4 (i.e., 14 microns = .55 mil).

 

For the APPROXIMATE strength equivalents:

LLDPE & Blends HDPE
.4 – .45 mil
.6 – .75 mil
.75 – .95 mil
.95 – 1.1 mil
1.1 – 1.5 mil
1.5 – 1.8 mil
Premium Super-Hexene
6 micron
8 – 10 micron
10 – 13 micron
13 – 16 micron
16 – 18 micron
16 – 25 micron
no comparable equivalent

 

Formula for determining proper bag size:

  • Measuring instructions to determine the proper size bag for any receptacle:
For a round receptacle:
Width of bag required = Diameter of receptacle x 3.14 / 2
(Diameter = the distance across the top of the receptacle)
Length of bag required = 1/2 of the diameter + height of receptacle
+ 4″ to 6″ for overhang
For a square or rectangle receptacle:
Width of bag required = Length of two sides
Length of bag required = 1/2 the smallest side + height of receptacle
+ 4″ to 6″ for overhang