Top Load Tester is used for measuring vertical strength of bottle. Good strength avoids damage of bottles during stacking, Transportation, Storage and packing. Bottle Compression Tester is efficient and easy to use equipment intended for measuring the ability of bottle to resist external compressive forces. This method describes how to determine the resistance of a bottle to compressive forces. This is accomplished by placing the bottle between two flat platens, one of which is mechanically driven to compress the bottle. A recording device is incorporated to indicate the force required to compress the bottle. The method is used to compare the compressive resistance of different lots of similar bottles or to compare bottles of different grades.