Web sling inspection information.
Visual on site examination of web slings available.

1. Identification
   Synthetic fibre web slings must be
   permanently identified with the:
   
   
   1. Manufacturer's name or mark.
   2. Manufacturer's code or stock number.
   3. Working load limits for the types of hitches permitted.
   4. Type of synthetic web material.

2. Damage
   A synthetic fibre web sling must be removed from service when any of the following circumstances occurs:
   
   
   1. The length of an edge cut exceeds the web thickness.
   2. The penetration of abrasion exceeds 15% of the webbing thickness when taken as a proportion of all piles.
   3. Abrasion occurs on both sides of the webbing and the sum of the abrasion on both sides exceeds 15% of the webbing thickness when taken as a proportion of all piles.
   4. Warp thread damage up to 50% of the sling thickness extends to within 1/4 of the sling width of the edge or exceeds 1/4 the width of the sling.
   5. Wrap thread damage to the full depth of the sling thickness extends to within 1/4 the sling width of the edge or the width of damage exceeds 1/8 the width of the sling.
   6. Weft thread damage allows warp thread separation exceeding 1/4 the width of the sling and extends in length more than twice the sling width.
   7. Any part of the sling is melted or charred, or is damaged by acid or caustic.
   8. Stitches in load bearing splices are broken or worn.
   9. End fittings are excessively pitted or corroded, cracked, distorted or broken.
   10. A combination of the above types of damage of approximately equal total effect is present.

1. Total Load is 1,000 lbs., divided by 2 legs = 500 lbs. (load per leg)
2. Suppose sling angle is 60 degrees
3. Multiply 500 lbs. x 1.154 (load factor from table) = 577 lbs. (actual load per leg)
4. You will need a sling rated at 1,154 lbs. in basket capacity to safely lift this 1,000 lb. load.

3. Inspection Frequency
   Three important factors need to be reviewed to determine your sling inspection frequency:
   
   
   1. Sling Usage: The more frequently a sling is used; the more often it requires inspection.
   2. Use Environment: The harsher the working environment the sling is used in, the more often it requires inspection.
   3. Sling Service Life: Base your conclusion on your previous experience in using slings.

The individual handling your slings should visually inspect all slings before each life.
Additional inspections should be made at least once a year by a qualified individual and permanent records should be kept. OSHA mandates that "Each day before being used, the sling and all fastenings and attachments shall be inspected for damage or defects by a competent person designated by the employer. Additional inspections shall be performed during sling use, where service conditions warrant."

4. Replacement Guidelines
   If you see damage such as that listed below, remove slings (including round slings) immediately from service, and return them to service only when approved by qualified individuals. Following are the removal criteria established by ANSI:
   
   
   1. Acid or caustic burns.
   2. Melting or charring of any part of the sling.
   3. Holes, tears, cuts or snags.
   4. Broken or worn stitching in load bearing splices.
   5. Excessive abrasive wear.
   6. Knots in any part of the sling.
   7. Excessive pitting or corrosion, or cracked, distorted fitting.
   8. If you see our Red Core warning yarns.
   9. Distortion of the sling.
   10. The sling has an identification tag that is in any way unreadable.
   11. Anytime a sling is loaded beyond its rated capacity or reason.

While these standards are quite specific regarding reason removal, others require your good judgment. Critical areas to watch are wearing to the body of the sling selvage edge of the webbing and the condition.

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