News

For the determination of the viscosity of liquids acc. to OECD 114 we now have two options:

- falling sphere viscometer (acc. to Höppler) in a range between 0,6 – 70.000 mPa*s and

- rotational viscometer in a range between 3 – 1.000.000 mPa*s

This allows us to test Newtonian as well as Non-Newtonian fluids regarding dynamic viscosity and calculate the kinematic viscosity.

#LAUSgroup #viscosity #newtonianfluid #nonnewtonianfluid #GLP

The deadline for applying for product authorization for the active substance DDAC in biocidal products of PT 1 and 2 is 01 February 2024. Good to know that LAUS has already experience with the analytical determination of quaternary ammonium compounds like DDAC. Contact us for more information.

https://www.laus.group/en/product-groups/biocides

#LAUSgroup #BPR #QUATs #DDAC

The rate and extent to which metals and sparingly soluble metal compounds can produce soluble available ionic and other metal-bearing species in aqueous media is determined in the Transformation/Dissolution study under a set of standard laboratory conditions. LAUS has many years of experience with the performance of this study according to OECD GD 29 under GLP. Contact us for more information!

#LAUSgroup #TransDis #T/D #TransformationDissolution #metal #metalcompounds

The Fourier Transform Infrared Spectroscopy (FTIR) spectrum of a polymer is like a fingerprint and allows its identification.

The ATR (Attenuated total reflection) method enables us to analyse all kinds of polymers (solid, powder, films, granules, soluble, etc.) directly or after grinding. The FTIR spectrum collected in the wavenumber range 500cm^-1-4000cm^-1 will be compared with our polymer data base containing more than 10.000 spectra. The best matches are being reported.

Results could be used for

• Safety Data Sheets
• REACH Substance Identification

#LAUSgroup # FTIR #polymerdatabase

LAUS – The GLP Lab - offers testing of lubricants, additives and other components:

- Biodegradability as a contribution to Sustainability

- REACH obligations

- CLP and ADR, classification and labelling

- Water Hazard Classes (“WGK”)

Visit us at this year’s Lubricant Expo: 6 - 8 Sept. 2022, Messe Essen, Germany, Hall 7, Booth 637 or our website: https://buff.ly/3T4EUAq

#LAUSgroup #lubricants

Why can the determination of the Particle Size Distribution (PSD) be challenging?

The PSD is required for a number of regulatory purposes:

• granulometry for the REACH dossier of solid substances (OECD 110)
• REACH substance identity profile (sameness) for Nanomaterials
• the definition of nanoforms
• analytical determination of nano materials in genotoxicity or ecotoxicological studies

The smaller the particles are, the more elaborate the techniques have to be. LAUS has equipped a new lab with state-of-the-art technology and trained a highly qualified study director. We have developed a deeper understanding on how to approach the different substance types (e. g. nanomaterials) and how to receive comprehensive results. Sometimes complementary techniques like SEM/TEM, XRD with Rietveld or BET are required to describe a substance in its entity.

Contact us for more information.

https://www.laus.group/en/physico-chemical-properties/oecd-eu-methoden/oecd-110-psd

#LAUSgroup #particlesizedistribution #PSD #DLS