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This is the eleventh article of our monthly blog series “weibold! Academy”. As we have mentioned before, with these articles we try to provide our readers and our newsletter subscribers with valuable knowledge about the tire recycling industry. We believe that a basic knowledge foundation might be beneficial for everyone involved in the industry and each month we cover different topics, thus providing you with important know-how for the tire recycling industry. Month by month we together dwell deeper into the world of tires and the ways of recycling them. In case you have missed our previous w! Academy articles, you can find them here:

  1. Welcome to weibold! Academy
  2. weibold! Academy: Recycled Rubber Output Spectrum and Rubber Granulates
  3. weibold! Academy: Rubber Granulates, Rubber Powder, Tire Derived Steel and Tire Derived Fiber
  4. weibold! Academy: Tyre Recycling Value Chain
  5. weibold! Academy: Applications for Tyre Recycling Plant Output
  6. weibold! Academy: Rubber Granulate Applications
  7. weibold! Academy: Rubber Powder Applications – Rubber Industry
  8. weibold! Academy: Rubber Powder Applications – Surface Coatings
  9. weibold! Academy: Success Factors in the Tire Recycling Industry 
  10. weibold! Academy: Understanding Tire Recycling Technology

This month we will elaborate on quality management in tire recycling.

Total Quality Management (TQM)

TQM is a comprehensive and structured approach to organizational management that achieves best quality of products and services through using effectively refinements in response to continuous feedback, and through using them effectively in order to deliver best value for the customer, while achieving long term objectives for the organization.

Quality is geared to the customer. The organization successfully attains outstanding quality and services through a strong teamwork of the employees of all departments and common strength. Moreover, TQM provides meaningful measures of performance that guide the self-improvement efforts of everyone involved.

TQM forms a basis to guarantee quality and customer’s satisfaction. With the profound common knowledge of the organization all possible questions of the customer will find a suitable response. Questions about the quality requirements, such as particle size distribution fiber and steel content in granulates, as well as standards, norms are of customer’s high interest.

Testing Procedures

Testing procedures are especially important when peculiar questions arise among customer. Materials are tested to provide the customer or company with detailed information on the material or product.

With regard to rubber components it is important to fulfill certain standards. Material testing and specifications are performed under precisely determined norms and standards. Below, we list several methods that are used for the analysis of rubber granulates and powders.

Sieve Fraction Analysis

Most popular, this method analyses rubber granulates and powders particle size distribution according to specific standards. Standards such as ISO 33101 and EN 10204 are used to identify particle size distribution and other quality requirements to make granulates and powders comparable. More standards how to comply are described in our business plan and sales support modules. Contact us anytime for more information.

Flocculation Content

The fiber flocculation content of rubber granulate is determined using an image analysis. The image analysis yields meaningful information from images. In large part it is common to use digital photographs and generate measurements through digital images processing techniques. For the extraction of quantitative information or an analysis of large amounts of data, excellent technical and computation is required. Usually, macro images can be used to perform analysis.



An olfactometer is an instrument used to detect and measure ambient odor dilution. Olfactometric tests are used in conjunction with human subjects in laboratory settings, most often in market research, to quantify and qualify human olfaction. This method shall gauge the odor detection threshold of substances. To measure intensity, olfactometers introduce an odorous gas as a baseline against which other odors are compared.

Material Safety Data Sheet

A Material Safety Data Sheet, MSDS, is an important component of product stewardship and workplace safety. The MSDS shall provide users, workers and emergency personnel with important information about the product and the correct procedures for the handling and working with the product and its substances in a safe manner. The information contains the physical and chemical data, health, protection and emergency procedures.

Product Data Sheet

The product data sheet is a document that summarizes performance, technical properties and other important technical information to help a client identifying the suitability for his/her applications. The product data sheet generally comprises sufficient information and details so that the product can be implemented into a system, or combined with other materials and subsystems without any difficulty.

Don’t hesitate to contact us to request more information helpful to successfully set up and adjust your business!