Testing Procedures for UN Rated Bulk Bags | Umasree Texplast Pvt. Ltd.

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Testing Procedures for UN Rated Bulk Bags

• All bulk bags, also known as FIBC, jumbo bags, or
  super sacks, undergo rigorous performance tests.
  However, UN approved bulk bags are of superlative
  standards that survive the physical pressure of
  loaded contents, which are often hazardous in
  nature.
• In this blog, we will take a closer look at how
  these jumbo bags can meet UN safety guidelines to
  ensure secure usage and handling

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What Are UN Rated Bulk Bags?

• The agrarian, construction and chemical
  industries often need to handle chemicals and
  flammable or toxic products. UN certified bulk
  bags are heavy-duty packaging bags that help
  these businesses safely store and transport
  hazardous materials.
• It is to minimize risks of freak accidents during
  storage or transportation of such products that
  these bags must meet UNs special testing
  standards.
• Fine powders like salt, sugar, and flour, that
  risk damage from moisture, find appropriate
  packaging solutions in bags with liner or with
  lamination.

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Testing Procedures That UN Rated Bulk Bags Must
Go Through

• - The following are some testing procedures that
  all big bags must take to be certified as UN FIBC
  bags.
• Top Lift Test
• A hydraulic cylinder is used to press down the
  contents in the bag that is tested. The top lift
  is used to test if the FIBC bag can withstand six
  times its level of safe working load for five
  full minutes to qualify for a UN rating.

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• Stacking Test

• In this procedure, the bag is placed on a flat
  surface and is filled with contents to safe
  working load. Pressure, which is equivalent to
  two similar bags, is then applied to the bulk bag
  to check if it withstands the stress over the
  next 24 hours

• Drop Test

• The FIBC bag is filled to a safe working load
  level and then dropped from a specified height
  that will depend on the testing requirements of
  the packing group. To qualify the test for UN
  approval, the bag should not tear midway, nor
  should there be any leakage of contents.

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• Topple Test

• The tested bag is filled to a safe loading level
  on a platform. The platform is then gradually
  raised in a way that the bag is forced to tumble
  down without letting its contents escape.
• This is to test if the sack can resist a 100 mm
  long knife cut when it is loaded to safe
  capacities. The tear cannot widen beyond 25 and
  cause the contents to overflow.
• The bulk bag is put on a vibrating platform for
  one hour to check if it stays intact without
  toppling over, or causing any breakage.

• Tear Test

• Vibration Test

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• Righting Test

• The jumbo sack is filled to its safe loading
  capacity and then knocked on its side. It is
  righted into position to see there is no damage
  or tear to the bag or its contents.
• If you want UN approval for your FIBC bags to
  store and carry potentially dangerous industry
  materials, Umasree is a UN certified bags
  manufacturer in India that you can trust. Contact
  us to know more.

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