Technical Information

PANMINQUARTZ® has been keeping a high quality. It not only meets the international certification standards but also customers' satisfaction. Our certificates and evaluations have been issued by the renowned institutions. In addition to CE certification, we also have NSF certification as a safe material for direct food contact, and Greenguard Gold allowing users to apply our products even in sensitive areas like hospitals or schools.

Our products have been tested by internationally renowned institutions, like SGS and TÜV, and the following is part of the test items:

Test item(s) Test method(s) Test result(s)
Absorption by weight ASTM C97/C97M-15 0.02-0.04%
Density ASTM C97/C97M-15 2313 kg/m3
Abrasion resistance
ASTM C241/C241M-15ε1
Modulus of rupture (2CM)Refer to ASTM C99/C99M-15 Dry condition: 29.5 MPa
Wet condition: 32.4 MPa
Flexural strength (2CM)
ASTM C880/C880M-15Dry condition: 26.4 MPa
Wet condition: 27.8 MPa
Compressive strength (2CM)Refer to ASTM C170/C170M-17Dry condition: 184 MPa
Wet condition: 192 MPa
Coefficient of linear thermal
ASTM D 4535-13ɛ1 22.2×10-6/°C
Thermal Shock Resistance
(Immersion method)
ASTM C484-99
(Reapproved 2014)
No visible defects
Resistance to Freeze-thaw
Refer to ASTM C1026-13 No obvious damage
Static coefficient of friction ASTM C1028-07 Dry condition: 0.66
Wet condition: 0.54
Flammability test ASTM E84-17 Class A
Fungi resistanceASTM G21-15No affect

NSF International is an accredited, independent third-party certification body that tests and certifies products to verify they meet these public health and safety standards. Products that meet these standards bear the NSF mark.

 CE marking is a certification mark that indicates conformity with health, safety, and environmental protection standards for products sold within the European Economic Area (EEA). The CE marking is the manufacturer's declaration that the product meets the requirements of the applicable EC directives.

The GREENGUARD Gold standard includes health based criteria for additional chemicals and also requires lower total VOC emissions levels to ensure that products are acceptable for use in environments such as schools and healthcare facilities. 

TÜV's function as notified bodies in Europe for medical device regulation and other technical fields, based in Germany and named in German. It is the world's number one brand of choice for premium quality, safety and sustainability solutions.

SGS is the world’s leading institution offering inspection, verification, testing and certification services of the quantity, weight and quality of traded goods, the testing of product quality and performance against various health, safety and regulatory standards, and to make sure that products, systems or services meet the requirements of standards set by governments, standardization bodies or by SGS customers.