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EAD21000A STANDARDS FOR TANDEMLOC SLING & BELOW THE HOOK LIFTING DEVICES
MANUFACTURING & TEST SPECIFICATION NOTES
1. Proof testing (unless otherwise specified on the Tandemloc drawings):
  A. All below the hook lifting devices are manufactured in accordance with ASME B30.20 and are proof loaded to conform to that specification and OSHA 2232 (1918.61), as follows:
   
WORK LOAD LIMIT (WLL)   PROOF LOAD
Up to 40,000 lb. - 25% in excess of load limit
Above 40,000 lb.to 100,000 lb. - 10,000 lb. in excess of load limit
Over 100,000 lb. - 10% in excess of load limit
  B. All chain, wire rope and synthetic pendant slings are manufactured in accordance with ASME B30.9 and are proof loaded to 200% of the work load limit.
  C. All comml shackles, hooks, chain connectors and rings are proof tested to 200% of WLL.
  D. All I.S.O. container lifting spreaders are proof tested to 125% of the work load limit.
2. Marking below the hook lifting devices:
  A. Decals of self adhering vinyl are used to mark both sides with the work load limit (WLL), and the Tandemloc logo. Additional marking, when required, shall be noted on the Tandemloc drawing.
  B. The WLL limit color is black and the Tandemloc logo color is red unless otherwise specified on the Tandemloc drawings.
  C. Letter height of the decals are 5" unless space does not allow it. On smaller spaces, the max. letter height to fit the space is used.
  D. The WLL marking is located in central locations so that it is both highly visible and right side up during use.
  E. A test certification tag (AA24000A-CP1) is permanently attached, showing Tandemloc I.D., Part No., Serial No., Weight and Work Load Limit.
3. Marking Slings:
  A. A sling leg is metal tagged (AA24000A) showing use, work load limit, part no., size, length and Tandemloc I.D.
  B. Lift components are safety marked in accordance with ASME Z535.4.O., WE

DESIGN SERVICE CLASS AND LIFE CATEGORY PER ASME BTH-1-2005
Unless otherwise specified on the product drawing, the design category used is “B" (S.F. 3:1 to yield) and the service life is Class "O" (up to 20,000 load cycles), except that ISO container lift spreaders have a service life Class "1" (up to 100,000 load Cycles). Different design categories and service classes must be defined by the buyer prior to order placement. The lifting product will then be custom engineered to meet the specified requirements.

SERVICE TEMPERATURES OF TANDEMLOC LIFT DEVICES
All lift devices and slings sold by Tandemloc are made in conformance to ASME B30.20 (below the hook lifting Devices) and ASME B30.9 (slings) unless otherwise noted. These specifications require the user to perform a pre-lift equipment inspection and limit the amount of impact and shock loading to minimal. This is of extreme importance especially when the service temperature goes below 35°F, and increasingly important with each degree lower. On this basis, the Tandemloc standard equipment is useable in temperatures of 150°F down to minus 40°F. (low limit per ASME B31.3 temperature criteria without Charpy testing).

The user has the option of purchasing ASME B30.20 below the hook lifting devices, made for arctic service to minus 50°F. These devices are made of special steels which are produced to withstand Charpy impact tests made at minus 50°F. The user must still avoid impact and shock loading and perform the careful pre-lift inspection noted above, but will Have an extra margin of safety. The high temperature limit is 150°F.
Pre-lift inspection procedures are noted in ASME B30.20 and ASME B30.9 available from ASME.
Tandemloc recommends that before any low temperature lift or after any accidental damage occurrence that the device is inspected for cracks, gouges and deep scratches in high stress areas. Repair and re-test before using.
SUPPLEMENTARY DATA
ASME B30.9 (2003) defines service temperatures for sling materials as follows:
Alloy GR80 or 100 steel chain : 400°F to minus 40°F
Steel wire rope IWRC : 400°F To minus 40°F
Steel wire rope with fibre core : 180°F to minus 40°F.
Steel mesh : See specification for many alternatives
Synthetic media : 140°F to minus 40°F.
See specification for certain types which have higher maximum service temperatures.
The above supplementary data is for reference only. Actual service temperatures must be confirmed when purchasing. Sling assemblies will have fittings and other components which will affect service temperatures.
WORK LOAD LIMITS AND NON-UNIFORM LOADING
Unless otherwise stated, Tandemloc below the hook lifting devices work load limits for I.S.O.* freight containers are based on a uniformly loaded container. Non-uniformly loaded containers require a reduction of the work load limit to prevent a higher loading of a structural container component than the load occurring in a uniform lift.
*ISO 668 & ISO 1161
REVISIONS
Rev. Description Date App.
A Added 4 B. Data. 12/15/03 MD
B ASME was ANSI 3 places. 01/13/06 MRD
C Proof load Note 1 said 125% of WLL only. Added shackles, chain conn.,
Hooks, ring,& ISO container spreader proof test data in Note 2.
01/10/07 MD
D Added service temperature data. 03/15/07 MD
E1 Corrected spelling & sentence structure of all words. Added supplementary data. Final review completed for reissue. 03/21/07 MD

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