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Ozone Testing

What is ozone testing?
Ozone testing is a method used to determine a rubber or elastomer's resistance to ozone degradation. The elastomer samples are placed in a special chamber that exposes them to ozone at concentration and duration specified by a testing specification or standard. A sample that does not stand up to the effects of ozone exposure will crack at the surface and sometimes break in two.

What materials are tested in an ozone chamber?
Ozone testing is particularly effective for rubber and is a routine test for suppliers to the automotive and transportation industries. Polymers, silicones, and other elastomers can also be effectively tested in an ozone chamber. Ozone testing provides manufacturers with a prediction of how their elastomer product will perform over time. It is also frequently used to ensure quality of materials and components purchased from new or suspect sources.

Which standards refer to ozone testing?
Automotive, aerospace, and military/defense industries are heavily interested in meeting performance standards for rubber vehicle hoses, tires, grommets, wheels, and other components. Some relevant standards that Stork experts test to include:

  • ASTM D1149 (Standard Test Method for Rubber Deterioration - Surface Ozone Cracking in a Chamber)
  • ASTM D1171 (Standard Test Method for Rubber Deterioration—Surface Ozone Cracking Outdoors or Chamber (Triangular Specimens))
  • ASTM D518 (Standard Test Method for Rubber Deterioration-Surface Cracking)
  • ASTM D380 (Standard Test Methods for Rubber Hose)
  • SAE J517 (Hydraulic Hose)
  • SAE J1401 (Road Vehicle Hydraulic Brake Hose Assemblies for Use With Nonpetroleum-Base Hydraulic Fluids)
  • FMVSS 106 (Federal Motor Vehicle Safety Standard No. 106; Brake hoses)

Meeting Standards
Stork Materials Technology’s quality program meets the ISO/IEC Guide 17025 standards (equivalent to the relevant laboratory requirements of the ISO 9002 series of standards).

Ozone testing services at Stork

Ozone testing of rubbers and elastomers at Stork

Stork Locations offering OzoneTesting services:

  • Stork Twin City Testing Corporation - Des Moines, IA


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