ISO 17034-Certified Reference Material:
Density Standards

ISO 17034-certified reference materials

Anton Paar is an internationally acknowledged reference material producer. Accreditation to ISO 17034 is legal proof that our density standards are traceable to the International System of Units (SI) and comply with the rigorous requirements of that quality system. Our reference material laboratory works independently and impartially, and it’s regularly audited by Akkreditierung Austria, the Austrian accreditation body. ISO 17034 requirements always include those of ISO 17025: Our certified reference materials for density conform to both ISO standards.

Online certificate and reference values with lifetime guarantee

Continuous stability monitoring after product release is mandatory for any ISO 17034 reference material. In contrast to standards that are only ISO 17025 certified – and therefore just assumed to be stable, without long-term proof – each batch of our standards is measured once every three months throughout its complete lifetime, so the stated density is continuously monitored and guaranteed. Rest assured that our digital, online certificates are always up to date – we keep testing the standards for you. All paperwork is stored safely with no effort at your end, and you’re informed directly in case of discrepancies.

Low measurement uncertainty, traced to the primary method

Good instruments deserve well-specified standards. In measuring our density standards via the primary method – hydrostatic weighing – we guarantee the highest possible accuracy. In fact, it’s on the same level as national metrology institutes. In addition to the super-low uncertainty coming from the reference method (approx. 0.004 kg/m³), our standard’s specified expanded uncertainty (from 0.015 kg/m³ to 0.03 kg/m³) also comprises homogeneity, long-term stability over lifetime, and short-term stability due to shipment. We’re in a far higher league than any other available methods referred to as “reference methods” by standard providers.

Select a density standard to suit your application

Choose from different standards – with densities from 0.75 g/cm³ to 1.25 g/cm³ – to individually represent your application. Whether organic, aqueous, or viscous, you’ll find your match. For your safety and convenience to ensure the quality of your measurement, we offer only liquids that are stable, easy to handle, non-toxic, and safe. Check their validity at any time via the online certificates.

Easy click opening and zero exchange with ambient conditions

To retain the low level of uncertainty and prevent exchange with ambient conditions that could cause composition variation and quality loss, we rely on 10 mL glass ampoules dedicated for single usage. The ampoule is closed by a sealed safety-glass cap with a shatterproof breaking point. Opened at a click via a simple finger press, you can always be sure that the content exactly corresponds to the values specified on the certificate.

Source all density-related products from one supplier

Our customers know: We’re the global masterminds of digital density measurement, leading the market for more than 50 years since we invented the first digital density meter in 1967. With our state-of-the-art weighing apparatus and ISO 17034 accreditation, we’re now ready to offer you a top-notch package:

• The most accurate and fastest digital density meter on the global market with a three-year standard warranty
• Density reference material, available at a click, to keep the quality of your measurements as high as on the very first day
• An internationally recognized ISO 17025 calibration certificate confirming accuracy and traceability
• Comprehensive on-site calibration and maintenance by trained service technicians

It’s a one-stop shop.