Fabric Test Standards

All materials in the Haworth Surface Collection program are tested to ensure that they meet or exceed applicable industry standards. Continuous testing enables us to monitor the consistent quality of our surface materials, which are supplied by many vendors. This is a brief overview of the tests most important to you and your customers.

These tests measure the performance of standard Haworth fabrics. Haworth makes no claims and assumes no liability when COM fabrics are specified.

The ACT (Association of Contract Textiles) Guidelines

The Association for Contract Textiles (A.C.T.) has set independent guidelines for textile performance. Haworth voluntarily indicates that its textiles meet or exceed these guidelines by including the ACT symbol(s) on the back of its fabric swatches.

flame-resistance1     Fire Retardancy (resistance to burning) Seating upholstery meets Californian Technical Bulletin 117-2013; vertical surface fabrics meet ASTM-E-84. Tested on Haworth upholstered panels

colorfast-wet     Colorfastness to Wet and Dry Crocking (color will not rub off wet or dry fabric to soil clothes, hands or other materials). Seating upholstery meets AATCC8-Dry Crocking, Grade 4 minimum; vertical surface fabrics meet AATCC8-Dry Crocking, Grade 3 minimum.

colorfast-light     Colorfastness to Light (fabric retains its color when exposed to light) All textiles meet AATCC option 1 or 3 - 2003, Class 4 minimum at 40 hours.

physical     Physical Properties (resistance to pilling, tearing and coming apart at the seams) Seating upholstery meets:

* Brush pill ASTM D3511, 3-4 minimum
* Breaking strength ASTM D5034-95 50lbs. minimum in warp and fill
* Seam slippage ASTM D3597-02 D434-95 25 lbs. minimum in warp and fill.

abrasion-heavy     Abrasion (resistance to damage from wear and rubbing)

* Heavy-duty specification ASTM 4157-02 modified (#10 cotton duck); 30,000 double rubs Wyzenbeek method.
* Heavy-duty specification ASTM D4966-98 (21 oz. weight); 40,000 rubs Martindale method.

abrasion-general     General Contract Specification

* ASTM D4157-02 modified (#10 cotton duck); 15,000 double rubs Wyzenbeek method.
* General contract upholstery specification ASTM D4966-98 (21 oz. weight); 20,000 rubs Martindale method.

Many Haworth fabrics exceed ACT standards; please refer to our website or swatching for specific fabric line results.  Please be aware that vertical/systems fabrics are not tested to the Abrasion standards.

Please note that effective April 1st, 2015, ACT is asking that members who publish Abrasion test results in excess of 100,000 double rubs (including statements of ‘100,000+’ or ‘exceeds 100,000’) must include the following information on any swatching or websites:

Multiple factors affect fabric durability and appearance retention, including end-user application and proper maintenance.  Wyzenbeek results above 100,000 double rubs have not been shown to be a reliable indicator of increased fabric lifespan.

California Technical Bulletin TB117-2013 (45 Degree Open Flame Burn Test)

TB117-2013 certifies that all standard Haworth seating fabrics meet or exceed industry standards for flammability. The test involves igniting a fabric specimen to measure its fire resistance.

California Technical Bulletin 113

CAL 133 determines the Haworth seating model and standard upholstery combinations that meet CAL 133 (TB 133) requirements. This is a test of an entire seating assembly, not just a fabric, so individual fabrics are not CAL 133 approved. The test involves placing a finished piece of furniture in a test room and igniting it.

Colorfastness to Crocking

Confirms that the dyes used in Haworth's colored fabrics will not be transferred to other surfaces, such as clothing, by rubbing or repeated contact. All Haworth standard fabrics meet or exceed industry standards for both types of crocking: Wet (color transfer from a specimen that has been saturated with distilled water) and Dry (color transfer from a dry specimen).

Colorfastness to Light

Establishes that Haworth fabrics, as well as the colorants, finishes and treatments applied to these fabrics, will retain their color after continuous exposure to light. All Haworth standard fabrics are designated Class 4 or better (on a scale of 1-5), which meets or exceeds industry standards.

Flammability ASTM E-84 and UL 723 Standards

Certifies that Haworth vertical/systems surface fabrics meet or exceed industry standards for fire safety. This is a test of an entire product assembly, not just the fabric. The test involves placing a vertical surface sample (such as Premise® or Compose®) in a fire test chamber and subjecting it to the flames from two gas burners. The test measures the maximum distance and time a flame travels across an ignited sample and the degree of smoke generated.

NFPA 701

Vertical surface fabrics are hung vertically and submitted to a horizontal flame to assess the propagation of flame beyond the area exposed to the ignition source.

Wyzenbeek Abrasion

This is the standard test method used in North America.  This test establishes that Haworth standard seating upholstery meet or exceed industry standards for wear. The test is performed on a Wyzenbeek Abrasion machine, which subjects four fabric specimens to rubbing by an abrading surface on an oscillating cylinder. Two specimens are tested in the warp direction, two are tested in the fill direction. The test measurement is given in double rubs (cycles) completed before the fabric shows signs of wear. Haworth fabrics must pass a minimum of 15,000 double rubs.

Martindale Abrasion

Confirms that Haworth's standard wool fabrics meet or exceed industry standards for wear. For testing purposes, fabrics are mounted flat and rubbed in a figure-eight-like motion using a piece of worsted wool cloth. The test measurement is given in rubs (cycles) completed before the fabric shows an objectionable change in appearance. Haworth fabrics must pass a minimum of 20,000 rubs.