By Vinita Dhupkar Assistant Secretary (Technical) Maharashtra Pollution Control Board The Maharashtra Plastic Carry Bags ( Manufacture and Usage) Rules,

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by Vinita Dhupkar Assistant Secretary (Technical) Maharashtra Pollution Control Board The Maharashtra Plastic Carry Bags ( Manufacture and Usage) Rules, 2006 Thickness Measurement of Carry Bag

Thickness of Carry Bag Units for measurement of thickness  Microns : Metric - SI unit 1000microns = 1000 micrometer =1 mm (millimeter)  Gauge : Non-SI unit 20 microns = 79 gauge 50 microns = 197 gauge

Instrument Micrometer  An instrument used to measure thickness of small object

Types of Micrometer Dial Micrometer Indicator Lifting Lever Handle Spindle Anvil

Types of Micrometer Digital Micrometer Battery cap Digital Indicator Lifting Lever Handle Spindle Anvil

Digital Micrometer 1.Remove a battery cap and set new battery 2.Put on the instrument 3.Ensure the easy movement of lifting liver 4.Reset zero with reset knob

Digital Micrometer 5.Lift the lever 6.Place the plastic bag sheet between spindle and anvil knob 7.Release the lever

Digital Micrometer 8.Digital indicator gives direct thickness of sheet in micron

Mini Digital Micrometer Instead of lifting lever manual screw adjustment to place the sheet Easy to carry in pocket Manual errors possible