Class A, delivered with UKAS certificate.

• Made from borosilicate 3,3 glass
• Each flask is individually tested and supplied with a calibration certificate complying to the requirements of ISO 17025 and is accredited at the United Kingdom Accreditation Service (UKAS)
• The volume content tolerances conform to accuracy Class A. Calibration based on the poured in volume (‘In’) at a reference temperature of 20 °C
• With etched graduation mark
• UV protection due to external colouration, very durable and chemically resistant amber colour; the only external application of the colour ensures that internal surfaces have standard DURAN® glass properties
• The white printed inscriptions are highly chemically resistant

DURAN® volumetric measuring instruments already meet the highest accuracy standard. The DURAN® range has now been expanded to include the product range of volumetric flasks with UKAS individual certificates. This new product line is tested and calibrated according to the requirements of the United Kingdom Accreditation Services (UKAS) and complies with ISO 17025, a standard for worldwide comparability of test and calibration results.