1 Types of Gutters and How to Prepare for an Install. 2  Advice on Gutters and Downspouts. 3  Tips for Cleaning and Repairing Gutters.  Outdoor Spring Maintenance Tips.
One mil is 1/000th of an inch. A sheet of paper is 4/1000ths of an inch thick, so 10 mil has the thickness of 2 1/2 sheets of paper. A mil is not to be confused with a millimeter(mm). On average human hair is 100 microns or .004 inches. 10 mil is the width of about 2 and a half human hairs.
Micrometre is 1 millionth of a meter, 1 thousandths of a milimeter (mm), or 1 x 10-6 meters. To give you the idea of how small a micro metre is, a human hair is about 100 Âµm, wide, and a red blood cell would be around 8 Âµm wide, the typical size of an animal cell would be from 10 - 100 Âµm.NSWER Generally in Science, you would use the Metric system of measurement. Therefore, when talking about cells and microscopic organisms, you would be measuring using MICROMETRE (abbreviated: Âµ --micron) or stated as: Âµm (micro metre).