Picture 6: Equipment used to determine surface flatness Picture 5: Uneven Grout Sizes if Grade B tiles are used with Inconsistent Tile Size In summary, using Grade B tiles will not get you a good alignment when carpet of tiles is laid on the floor where you will end up with crooked grout lines and unsightly floor pattern. Picture 4: How to determine Rectangularity Our rule of thumb will always cap the tolerance at ± 1mm in order to ensure ours are near perfect. That translate to ± 1.8mm max for a 600圆00mm tile size. If figures surpass that will be classified as Grade B tiles. Picture 3: How to determine Straightness of SidesĬ) Rectangularity, on the other hand, allows for ☖% tolerancesunder MS standard while LEO Ceramiko’s product allows for ± 0.3% maximum tolerances for Grade A tiles. Our tile products are capped at ± 1mm to ensure an extremely high-quality standard. If we zoom in to our LEO Ceramiko’s specs of ± 0.25%, we will only allow ± 1.5mm tolerances in Grade A tiles and anything that surpasses it will downgrade as Grade B tiles. In other words, it provides for ± 3mm in absolute terms based on the mentioned tile size. Picture 2: Manual Caliper used in measuring Length and Widthī) In length and width, tiles with a nominal size of 600圆00mm will allow a tolerance of ± 0.5% in Malaysian Standard MS ISO 13006. We measure the dimension of tiles using the above equipment to determine 3 criteria which are:a) Length and Widthb) Straightness of Sidesc) RectangularityĪ) In length and width, tiles with a nominal size of 600圆00mm will allow a tolerance of ± 0.5% in Malaysian Standard MS ISO 13006.Picture 1: Equipment used in determining dimension For tiles technical specifications details, one can refer to the link in our Leo Ceramiko’s website here. Let us concentrate on the generic product of tiles here for analysis and comparison purposes. Now, allow us to dwell deeper into the topics or criteria that set Grade A away from Grade B tiles that we can observe through their physical appearances. As in all fired products, tiles are bound to have tolerances due to shrinkages amid production and can be classified to its grading accordingly in adherence to a set of international standards, namely Malaysian Standard MS ISO 13006, in this case here. Grade A tile fetches a much higher premium than Grade B tile in the market. The remaining 3% to 6% output is either downgraded to be sold as Grade B tiles or rid of as rejected tiles. Imperfection can happen in production, and the Grade A tiles yield may fluctuate between 94% to 97%, which is considered a remarkable production output. However, this is not possible in reality. Factory’s main aim is to manufacture Grade A (1st Grade) tiles, or in other words, to achieve 100% of that in their production yield. First and foremost, no single factory will intentionally produce tiles in Grade B (2nd Grade Tile).
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