Lab & Certificates

Density The density indicates the mass per volume unit.

Density is measured by measuring the weight and volume of different samples.

Averaging the results from different samples gives a reliable result.

   Pulling strength The tensile strength is the point of tension at which a foam sample with a pre-determined cross-section breaks.

The tensile strength is measured by means of a classic tensile-strength test.
Resilience The resilience of the foam is measured by means of a classic drop-test in which a steel bullet is dropped from a pre-determined height onto the foam.

The distance that the steel bullet rebounds in relation to the drop height is the resilience.

   Strain at break The strain at break is the strain that a foam sample has undergone at the moment that it breaks during a tensile test.

That is also measured by means of a classic tensile test.
Hardness The resilience of the foam is measured by means of a compression table.

A sample with pre-determined thickness is compressed by 45%.

The counter-force that the foam exerts during the compression is a degree of hardness.

   Ash content The ash content is a percentage value that shows how much of the weight of the foam is made up of filling.

The ash content is measured by burning a sample for 30 minutes at a temperature of 700° C and comparing the residual weight with the original weight of the sample.
Support Factor The support factor is a measurement for the bearing capacity of the foam. The support factor is determined by dividing the counter-force during compression of 25% by the counter-force exerted during compression of 65%.  
Certificates

The company is well known for its high quality and competitive prices. This is amply demonstrated by the many certificates that the products have qualified for. The entire assortiment is certified to international standards that apply to medical care. Ask for the extensive certification of the MMC products.
Compression Set The compression set is a measurement of the loss of thickness following extended compression. To measure the compression set, a sample is compressed to 50% of its original thickness at a temperature of -70° C for 22 hours.
After a rest period of 30 minutes, the thickness is measured again to determine the percentage of the original thickness that has been lost.