Rounding off numbers

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Lambton College *

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2013

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Mechanical Engineering

Date

Dec 6, 2023

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docx

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2

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ROUNDING-OFF NUMBERS To ensure a consistent method in the “rounding-off” of numbers, IATA has developed a set of standards. DIMENSIONS Round-off dimensions BEFORE any multiplication takes place. Centimetres: Round-UP OR round-DOWN to the NEAREST WHOLE centimetre 15.01 cm = 15.0 cm 15.5 cm = 16.0 cm 15.81 cm = 16.0 cm Example: 1 box @ 25.2 cm x 15.5 cm x 15.8 cm = 25 cm x 16 cm x 16 cm x 1 box Inches: Round-UP OR round-DOWN to the NEAREST WHOLE inch 7 1/8 in = 7 in 7 1/2 in = 8 in 7 3/4 in = 8 in Example: 1 box @ 24 1/8 in x 10 1/2 in x 8 3/4 in = 24 in x 11 in x 9 in x 1 box WEIGHTS Round-off weights AFTER any multiplication takes place. Kilograms: Round-UP to the next HIGHER half or whole kilogram 10.01 kg = 10.5 kg 10.5 kg = 10.5 kg 10.71 kg = 11.0 kg Example: 4 boxes @ 5.3 kg each = 5.3 kg x 4 boxes = 21.2 kg = 21.5 kg total actual weight Pounds: Round-UP to the next HIGHER whole pound 10.1 lb = 11 lb 10.5 lb = 11 lb 10.7 lb = 11 lb Example: 4 boxes @ 5.3 lb each = 5.3 lb x 4 boxes = 21.2 lb = 22 lb total actual weight Note: While rounding off to determine chargeable weight is acceptable, the forwarder must determine if the goods can be accommodated on the planned aircraft PRIOR to rounding off the dimensions. For example, a crate 64.2 in high will not fit in a 767 passenger aircraft, which can accommodate shipments 64 in high. Rounding off the 64.2 in height of the crate to 64 in will only cause delays and additional costs if the shipment is tendered to the airline. CURRENCY Currency amounts are to be rounded off in accordance with the table shown in the TACT Rules, Section 5.7.1.
Example: 20 pallets, dimensions of each pallet are 42 in L x 48 in W x 40 in H. Each pallet weighs 890 kg. Can we fit this cargo into a 20-ft standard container as previously estimated ? Step 1 : c alculate by dividing the L x W x H of the pallets into the dimensions of the container. 232 x 90 x 90 42 48 40 = 5.5 x 1.9 x 2.3 = 5 x 1 x 2 = 10 Note : Round off your pallets, you cannot have partial pallets, e.g., 5.5 becomes 5. The actual calculation indicates we can only fit 10 pallets into a 20-ft standard container. Step 2 : is there a more efficient way to load your customer’s freight? Yes. Turn the pallet 90 o , the length becomes the width and the width becomes the length. L x W x H 20-ft standard container 232 x 90 x 90 48 42 40 = 4.8 x 2.1 x 2.3 = 4 x 2 x 2 = 16 Using this method, we can only fit 16 pallets into the container.
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