General Information Series No. 744

Transcription

1 Double Layer Loads of Nonhazardous Materials Secured with Cordstrap Barriers in a 20-ft Container ILG Method I-4 (New) Approved by DAMAGE PREVENTION & FREIGHT CLAIM COMMITTEE Association of American Railroads Issued July 2015 Published by Association of American Railroads/TTCI Damage Prevention and Loading Services DOT Road Pueblo, CO (Printed in U.S.A.)

2 GENERAL RULES The General Rules relating to personal safety and the safe operation of trains, contained in AAR Circular Nos. 42- K and 43-E or supplements thereto, issued by the Association of American Railroads, must be observed. These loading rules and/or practices apply to shipments transported in the USA, Canada and Mexico. The loading methods in individual closed car loading publications issued by the Damage Prevention and Loading Services Section of the Association of American Railroads are minimum standards that have been evaluated and approved. These minimum standards offer practical guidelines on the subjects covered. Since these are minimum standards, it may be necessary to supplement these methods in some instances. Securement standards in AAR closed car loading publications are intended for safe transit of the rail car from origin to destination and prevention of lading and equipment damage. These standards do not address unloading practices. This approval may be withdrawn if the loads using these methods exhibit consistent load failure during actual shipments. Loading and bracing methods not presently approved may receive consideration for approval and publication under Section II - Evaluation of New Loading and Bracing Methods and Materials for Closed Cars, Trailers or Containers of General Information Bulletin No. 2, Rules and Procedures for Testing of New Loading and Bracing Methods or Materials. Submit requests to Director Damage Prevention and Loading Services, AAR/TTCI, DOT Road, Pueblo, CO CAUTION: Car rocking motion caused by the lift equipment entering and/or exiting the rail car may cause unsupported packages or articles with a higher center of gravity to fall to the floor. Minimize access to the car. Exercise caution when inside a partially loaded car. Lift operators should stay on lift equipment, whenever possible, while inside a partially loaded car. The following bracing method uses Cordstrap barriers that are attached to the forward corner posts of a container with CornerLash anchors. Illustration No. 99: 1. This load may contain double-decked closed head drums loaded in a modified pattern, intermediate bulk containers (IBC s) or any palletized product two layers high. Any combination of product mix is acceptable. 2. Use suitable dividers between different product mix. When drums are loaded, this can be 1 4 in. plywood or equivalent. 3. The following separators have been evaluated and found acceptable for one-time use with this loading method. These separators were tested under simulated conditions, and their acceptance may be withdrawn if loads exhibit consistent load failures. If used with hazmat loads, these panels must be compatible with the contents of the drums. 1

3 Name Thickness Description Vendor Drum Tite 3.0 mm, 3.2 mm Eucalyptus hardboard Lodge Lumber Drum Sep 3.2 mm Eucalyptus hardboard Pasadena Skid and Pallet Inc. Ship Tite in. Corrugated (not for use with corrosives) Allegheny Industrial Associates Ship Tite in. Corrugated (not for hazmat use) Allegheny Industrial Associates Ship Tite mm Corrugated Allegheny Industrial Associates Generic 3.0 mm Eucalyptus hardboard Greif PlyVeneer 3.0 mm Wood veneer with a Kraft linerboard overlay PlyVeneer Products Tier in., 0.50 in. Corrugated Damage Prevention Company 4. Install CornerLash strap anchors at the heights specified and thread Cordlash 200LE Type 1A, Grade 7 strap through the anchors, extending out the container doors. Photo No. 1: CornerLash element installed 2

4 Illustration No. 99, Sketch 1: Illustration No. 99, Sketch 1 5. Use triple wall corrugated fiberboard as buffer sheets between the drums and the straps in the doorway. 6. Interlace the straps around the last stack of drums as shown in Illustration No. 99, Sketch 1. The straps are horizontally aligned with the upper and lower drum rolling hoops. Join the straps using Dynablock ladder type buckles and tension with a Cordstrap CT50PN pneumatic tensioner. Illustration No. 99, Sketches 2 & 3: 7. Secure 2-in. x 4-in. lumber vertically to the corners of IBC s for corner protection. 8. The straps are horizontally aligned at the base of the IBC s and at approximately 2/3 s of the height of the IBC s as shown in Illustration No. 99, Sketch 2. Join the straps using Dynablock ladder type buckles and tension with a Cordstrap CT50PN pneumatic tensioner. 9. Use strap hangers or tape to maintain straps in position. 3

5 Illustration No. 99, Sketch 2 Illustration No. 99, Sketch 3 4

6 General Information Series Publications 727 Split Loads of 58 in. Diameter Roll Pulpboard on End Using Rubber Mats (ILG Method E-18) ((5/12) 728 Roll Omission Method of Loading 58 Diameter Roll Linerboard in Standard Draft Gear Cars (5/12) in. Diameter Roll Paper on End Using Rubber Mats (ILG Method E-17) (8/12) in. Diameter Roll Paper on End Using Rubber Mats (ILG Methods E-5 & E-20) (1/13) in. to 50 in. Diameter Roll Paper on End Using Rubber Mats (New Intermodal Loading Guide Method E-21) (4/13) 735 Elimination of Doorway Protection in Loads of 58-in. Diameter Roll Pulpboard in a 1-1 Offset Pattern in Cushioned Boxcars with 16-ft. Wide Double Plug Doors (10/13) 736 Non-metallic Strap Substitution for Steel Strap as Doorway Protection in Boxcars (11/13) Cancelled in. Diameter Roll Cellulose in 60 ft. Boxcars with 16 ft. Wide Double Plug Doors (8/14) in. Diameter Roll Pulpboard in a 1-1 Offset Pattern Secured with Air Bags in Cushioned Boxcars with 16-ft. Wide Double Plug Doors (10/14) in. Diameter Roll Paper Secured with Air Bags in Cushioned Boxcars with 16-ft. Wide Double Plug Doors (1/15) 742 Rubber Mats Used for Doorway Protection with 58-in. Diameter Roll Pulpboard and Similar Roll Paper Products Loaded in a Single Layer in a 1-1 Offset Pattern (2/15) (Cancels GIS 737) 743 Non-metallic Strap Substitution for Steel Strap as Doorway Protection in Boxcars (Cancels GIS 736) (4/15) 744 Double Layer Load Secured with Cordstrap Barriers in a 20-ft Container (ILG Method I-4) (7/15) 5