Synthetic Sling Inspection Criteria
Cut & Tensile Damage
Punctures & Snags
Illegible or Missing Tag
Inspection Criteria for Synthetic Web Slings
Refer to illustrations of damaged webbing. Remove from service if any of the following is visible:
- Capacity tag is missing or illegible
- Sling shows signs of melting, charring or chemical damage
- End fittings are excessively pitted, corroded, distorted, cracked or broken
- Cuts on the face or edge of webbing
- Holes, tears, snags or crushed web
- Signs of excessive abrasive wear
- Broken or worn threads in the stitch patterns
- Any other visible damage which causes doubt as to its strength
Examples of Web Sling Abuse
Most of the damage shown here would cause immediate catastrophic failure of the sling. Not all of the damage you will see will be this obvious or extreme, but still requires removal from use.
Elasticity – The stretch characteristics of web slings depends on the type of yarn and the web finish. Approximate stretch at RATED SLING CAPACITY is:
- Nylon and polyester are seriously degraded at temperatures above 194°F (90°C).
- Prolonged exposure to ultraviolet light adversely affects nylon and polyester. Slings become bleached and stiff when exposed to sunlight or arc welding.
- Many chemicals have an adverse effect on nylon and polyester. See Chemical chart below.
Chemical Environment Data
General guide only. For specific temperature, concentration and time factors, please consult Certified Slings & Supply® prior to purchasing or use.
|Dry Cleaning Solvents
|Soap & Detergents
|Water & Seawater