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GRAIN CARGO SECURING METHODS

FOLLOWING ARE RECOMMENDED METHODS FOR SECURING GRAIN AS PER INTERNATIONAL GRAIN CODE:

1. Shifting Boards (Filled / Partly Filled Compartment)
2. Saucers (Filled Compartment)
3. Bundling of Grain (Filled Compartment)
4. Overstowing Arrangements (Partly Filled Compartment)
5. Strapping or Lashing (Partly Filled Compartment)
6. Securing with Wire Mesh (Partly Filled Compartment)

Explanation:

1. Shifting Boards (Filled / Partly Filled Compartment)


* Longitudinal division called shifting board, which must be grain tight may be fitted in both "Filled and Partly Filled" Shifting Boards Compartments.
* In Filled Compartment they must extend downwards from the underside of the hatch covers, to a distance below the deckline of at least 1/8 of the breadth of the compartment, or at least 0.6 mtr below the surface of the grain after it has been assumed to shift through an angle of 15 degree.
* In Partly filled Compartment, the division should extend both above and below the level of grain, to a distance of  1/8 0f the breadth of the compartment.
 
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2. Saucers (Filled Compartment)


* For the purpose of reducing the heeling moment a saucer may be used in place of a longitudinal division in way of a hatch opening only in a Filled, Trimmed, Compartment.
* The depth of the Saucer , measured from the bottom of the Saucer to the deck line, shall  be as follows:

1. Ship with moulded breadth of up to 9.1 m, Saucer will not less than 1.2 m.
2. Ship with moulded breadth of 18.3 m or more, Saucer will not less than 1.8 m.
3. Moulded breadth between 9.1 m and 18.3 m , the minimum depth of saucer shall be calculated by Interpolation.

* The top of the Saucer shall be formed by the underdeck structure in way of the hatchway, i.e. hatch side girder or coaming and hatch end beams.    
* The Saucer and hatchway above shall be completely filled with bagged grain or other suitable cargo laid down on a separation cloth or its equivalent and stowed tightly against adjacent structure.

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3. Bundling of Grain (Filled Compartment) 


* Alternative to filling the Saucer in filled, trimmed, compartment with bagged grain or other suitable cargo a bundle of bulk grain may be used provided that:

1. Ship with moulded breadth of up to 9.1 m, Saucer will not less than 1.2 m.
2. Ship with moulded breadth of 18.3 m or more, Saucer will not less than 1.8 m.
3. Moulded breadth between 9.1 m and 18.3 m , the minimum depth of saucer shall be calculated by Interpolation.

* The Saucer is lined with a material acceptable to the administration & is provided with suitable means for securing at the top.
* Dunnage  not less than 25 mm in thickness or other suitable material of equal strength and between 150 mm and 300 mm in width shall be placed fore and aft over these lashing to prevent the cutting or chaffing of the material which shall be placed there on to line the saucer.
* The Saucer shall be filled with bulk grain and secured at the top.

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4. Overstowing Arrangements (Partly Filled Compartment) 


* The free grain surface shall be level and shall be covered with a separation cloth or equivalent or by a suitable platform.
* Platforms may be constructed of other wooden boards.
* The platform or separation cloth shall be topped off with bagged grain tightly stowed and extending to a height of not less than 1/16th of the maximum breadth of the free grain surface or 1.2 mtr, whichever is the greater.
* The bagged grain shall be carried in sound bags which shall be well filled and securely closed.

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5. Strapping or Lashing (Partly Filled Compartment)

* In order to eliminate heeling moments in partly filled compartment, strapping or lashing is utilized, the Securing shall be as follows:

1. The grain shall be trimmed and leveled to the extent that it is very slightly crowned and covered with burlap separation cloths, tarpaulins or the equivalent.
2. Two Solid floors of rough 25mm x 150mm to 300 mm lumber shall be laid with the top floor running longitudinally and nailed to an athwart ships bottom floor.
3. Steel wire rope or chain of equivalent strength, each of which shall be set tightly by means of a turnbuckle, may be used for lashing.
4. The lashing shall be positively attached to the framing.

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Related Topics:-

 Grain Code & Hazard Associated with Grain Cargo

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