Understanding Fabric

Fabric Wearability Codes (fabric grade) are important to understand when buying furniture!
The Upholstery Fabric Industry uses Performance Standards to rate upholstery fabric concerning breaking and tearing strength, resistance to yarn slippage, cracking and staining, and color fastness to light, water and gas fumes. Testing to these standards help consumers understand the quality of material they are purchasing and what they should expect from the furniture they are purchasing.
HHH MMM LLL DDD
This fabric is rated Heavy Duty and is suitable for normal use by an active family with children. It should provide better durability than other fabrics. It meets or exceeds 15,000 Double Cycles of Abrasion Testing.  This fabrics is rated Medium Duty and is suitable for normal use by adults in a household when furniture is not in constant use. It meets or exceed 9,000 Double Cycles of Abrasion Testing.  This fabric is rated Light Duty and is suitable for an adult household where furniture is selected for its aesthetic value rather than its performance characteristics. Such fabrics will provide satisfaction if not subject to constant use. It meets or exceed 3,000 Double Cycles of Abrasion Testing.  This fabric is rated Delicate. It is primarily decorative and should be given more care and respect than higher rated fabrics. This fabric carries the minimum rating of acceptability as Standards approved by the ASTM.
Defining Abrasion: Abrasion resistance is the ability of a fabric to resist surface wear caused by flat rubbing contact with another fabric. Abrasion levels are often over specified in the faulty assumption that abrasion tests predict a product’s overall durability and life span. A recent industry survey indicated that for many end-use applications, factors other than surface abrasion are more likely to result in fabric failure and therefore should be considered when evaluating product durability. Therefore it is important to note that abrasion testing does not guarantee durability for a specific period of time.