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1.2

Minor Versionm

by Suhail Ahanger

Introduction

Convert any plastic bottle or transparent cup into a volume measuring device by using a fixed volume device like a syringe or ink filler.

    • Exercise caution when using the scissor.

    • There is no need to use the needle with syringe.

    • Do not play with the needle.

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  1. Cut a strip of paper equal to the height of the bottle.
    • Cut a strip of paper equal to the height of the bottle.

    • Using glue, stick the paper strip along the bottle's wall.

    • Stick the paper from the base of the bottle to the top

    • The length of the strip should be just enough so that you can mark the volume scale along the strip

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    • Using a 5ml syringe, pour 20 ml of water into the bottle i.e. fill and empty the syringe 4 times into the bottle.

    • If you are using a 3 ml dropper or 3 ml syringe, you need to fill and empty full dropper 6 times and 2 ml once.

    • Now that you have the 20 ml level on the bottle, mark the level on the strip and label it as '20 ml'

    • Likewise, repeat the above steps and mark the paper strip at regular intervals (20 ml, 40 ml, 60 ml, 80 ml, 100 ml)

    • This is your volume measuring cylinder which can measure volume in multiples of 20 ml within the range of 0 ml to 100 ml. You can change the range and also measure in multiples of 10 ml or 5 ml if needed.

    Why should the 20 ml marking have to be marked "5 ml"? Also, somewhere the volume of the syringe should be mentioned; may be in the Parts itself, we say "5 ml syringe"? Also confusing is first saying 20 ml markings and then the last point you again say "definitive intervals" and give an example of 10 ml intervals...

    Procheta Mallik - Reply

    • Empty the water from the bottle once you have completed the scale

    • Cover the paper with a transparent cellophane tape to have a water proof volume measuring scale!

    How does putting tape over the paper make the device "spill proof"? Do you just mean the paper scale becomes water proof?

    Procheta Mallik - Reply

    • One needs to be diligent while measuring the unit volume with the syringe (or dropper). Even 1 ml error in each filling would multiply to 5 ml when the full 20 ml is marked.

    • The cylinder is not placed on a flat surface while marking.

    These troubleshooting points seem inadequate and confusing....

    Procheta Mallik - Reply

    • Use bigger syringes to mark the volume scale along bigger containers/bottles

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Kailash NR

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