Technical features

Home >> Technical features

Specification: Resistance to bending
Reference standard: ISO 10545-4
Required value: MODULUS OF ROPTURE R ≥35 N/MM2 BREAKING STRENGTH S ≥1300 N
Average Tuscania value: R>50 N/mm2 S>2500 N

Specification: Surface hardness
Reference standard: ISO 10545-7
Required value: 0 – V
Average Tuscania value: IV

Specification: Linear thermal expansion
Reference standard: ISO 10545-8
Required value: =< 9x10-5 YC-1 Average Tuscania value: 6×10-5 YC-1

Specification: Resistance to acids and alkalis
Reference standard: ISO 10545-13
Required value: CLASS GB MIN.
Average Tuscania value: LOW CONCENTRATION GLA | HIGH CONCENTRATION GHA

Specification: Resistance to chemicals
Reference standard: ISO 10545-13
Required value: CLASS GB MIN.
Average Tuscania value: GA

Specification: Water absorption
Reference standard: ISO 10545-3
Required value: ≤ 0,5 %
Average Tuscania value: ≤ 0,4 %

Specification: Stain resistance
Reference standard: ISO 10545-14
Required value: CLASS 3 MIN.
Average Tuscania value: 5

SYMBOLS

Uniform appearance

V4-random Slight variation

Moderate variation

V2-moderate Strong differences in shading

Variation in shading
The term “shading” refers to visible changes in the shades of colour that cannot be standardised.
It indicates differences in the tone of the individual tiles that are not homogeneous.
In particular, there are categories classifying the various collections of tiles in porcelain stoneware:

COEFFICIENT OF FRICTION (anti-slip properties)

How slippery a floor is can be a major safety factor for people walking over it and so it is a fundamental consideration when choosing a flooring solution.
The coefficient of slipperiness is indicated by a value called “R” that refers to a method described in German standards DIN 51130 and 51097, classifying products according to their coefficient of friction depending on the specific demands of a given application.
The level of slipperiness can also be linked to the use of given substances in specific work settings or if water is present, and so the standards say it is obligatory to choose a flooring material capable of creating sufficient friction between any surfaces coming into contact in order to limit possible hazards for people. A higher coefficient of friction indicates a lower degree of slipperiness.

The standard differentiates between the slipperiness of floor surfaces for areas where people will be wearing footwear (R9-R13) and for areas where people may have bare feet (A,B,C).

The method of measurement specified in DIN 51130 relates to the following classes of slipperiness and states where products can be used:

R9 – entrances and stairs with outdoor access; restaurants and cafeterias; shops; outpatient clinics; hospitals; schools.
R10 – communal bathrooms and showers; small kitchens of catering businesses; garages and cellars.
R11 – environments for the production of foodstuffs; medium kitchens of catering businesses; workplaces where there is a strong presence of water and sludge; laboratories; laundries; hangars.
R12 – environments for the production of fatty foodstuffs, including dairy products and derivatives, oils and salamis; large kitchens of catering businesses; production lines in industries using slippery substances; car parks.
R13 – environments with large quantities of fats; food processing.

For environments where water is present and people walk around in bare feet, the performance demanded of the flooring solution is even more stringent.
This is measured according to standard DIN 51097 and is classified according to groups A, B, C based on an increasing value:

A – changing rooms; areas accessed in bare feet; etc.
B – showers; edges of swimming pools; etc.
C – edges of swimming pools on a slope, stairs under water; etc.

Technical features

Tuscania S.p.A.