Welcome to Pragati Polyplast India Private Limited

Product Testing

Our manufacturing unit is equipped with all testing facilities. Our entire range of products conform to IS:6312 and UN standards. Specific UN approvals can be obtained on request.

Tests Carried At Our Plant

Weight is checked immediately after production. Permitted weight is within specified limit for the product.

Drop Test

This test is carried out to ensure that product is not breaking or bursting during transport. Containers are filled with dummy material (water or a mixture of sand and sawdust) up to the required weight and caps / lids are closed. The containers are then dropped from a height as specified by the standards. The containers are dropped at various angles so as to ensure that under no circumstances they break if they fall during transportation

Stack Test

The containers are filled with dummy material and are stacked one on top of the other. They are kept for more than 48 hours to see if there is any deformation or buckling in the walls of the containers.

Dimension Test

Dimensions of the product are checked to make sure they are within specified limit


Thickness of the final product is checked to ensure the product thickness is according to the standard.

Leak Test

The containers are filled with water and rolled on the sides, put upside down and are checked for leakage.

Pressure Test

The containers are sealed and air is filled under pressure through a hole made for the test. A pressure gauge is put to see any drop in pressure due to leakage of air through closures, cap or gaskets.

Hydro Test

Product is filled with water up to the top, pre-determined pressure is applied and maintained to check if walls are stretching and leakage from any point. Under this test product should not leak from anywhere.


Clear semitransparent LDPE bags with double sealing on one end. The bags are free from extraneous matter.

Visual Inpection

Visual Inspection is done on the bags. Should be free from wrinkles, spots, un melted parts, black specks, dust, hair, foreign matter.


Same test valid for all dimensions mentioned in F.G Specification Sheet.

The Measurement to be done with a calibrated measuring tape or calibrated steel rule thickness with thickness guage. The dimensions should be within the tolerance limit given in the specification sheet.

The dimensions to be checked are:

  • Width – in Inches
  • Length – In inches
  • Thickness – In Gauge


Colour to be checked. The colour should be uniform. For transparent bags there should not be any other colour visible.


Weight is to be checked as per the Finished Goods Specification Sheet. The weight should be within the tolerance limits. A bunch to 10 bags to be checked and average is to be taken.

Surface Resistivity

Antistatic nature to be checked by testing surface resistivity. The surface resistivity meter is taken and put on the film. Before putting the meter on the film it is rubbed slowly with hands. The button is pressed and the surface resistivity is noted by seeing the light glowing on the meter.

Dart Impact

Dart impact strength of the film is tested. It should be within the range as per the Finished Goods Specification Report.

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