PLEXIGLAS® – Tolerances

PLEXIGLAS^® GS and XT are manufactured according to EN ISO 7823-1 and -2. According to this standard, acrylic must have a smooth surface and show no scratches, grooves or other surface defects of more than 3 square millimeters (mm²).

Nor must there be any bubbles, inclusions, cracks or other defects larger than 3 mm² in each case that might negatively influence the suitability of the sheets for their intended purpose. Surface defects smaller than 1 mm² are negligible, and defects of 1 to 3 mm² are acceptable.

Within a surface area of one square meter (m²), there must not be an accumulation of small defects whose size is defined as negligible. No further defects may occur in or on the sheet at a distance of 500 millimeters (mm) whose size is defined as acceptable.