REACH Sameness Testing

REACH sameness testing is required when co-registrants need to determine if the substances they wish to register under REACH regulatory compliance are the same as the Lead Registrant.

To establish REACH subtance sameness, detailed chemical information and analytical data are required in line with the principals of Guidance for identification and naming of substances under REACH and CLP and with the Substance Identification Profile (SIP), as published by the lead registrant.

When you join a preSIEF you need to test your substance to check that it matches with the lead registrant in terms of composition and min/max parameters. There may be named impurities with threshold levels that impact classification and labeling.

Our REACH testing laboratories conduct sameness testing programs which establish the substance identification and sameness. By applying our wide range of analytical instrumentation our REACH scientists include high quality spectral data to confirm the substance structure and identity. We perform chromatographic analysis to determine chemical purity including the main components, presence of essential additives with a semi-quantitative determination of the percentage levels for each component present in substances. We can also develop methods towards identifying named impurities present in the substance and determine the percentage levels of these in the sample.

Our laboratory staff are experts in analytical sciences and can provide detailed interpretation of the experimental data and, where required, justification of the selection of methods utilized and the reported data. Additionally we also determine molecular weight and optical activity (for chiral isomers), where required.

The REACH sameness data we generate will allow you to assess whether you can register jointly with other companies, and which SIEF is the correct one to join. Furthermore, our experts are experienced in providing robust justification based on quality data, where substances are on the border of being mono- and multi-constituent substances. 

The insight we bring through our REACH testing packages can also help you to come to a decision whether substances meet the REACH criteria as mono-constituent or multi-constituent and help you to understand better substances of unknown or variable composition, complex reaction products or Biological materials (UVCBs).

Based on our extensive knowledge of global chemical regulatory issues and considerable experience gained during the EU REACH registration deadlines, we continue to offer regulatory chemical testing programs to clients around the world as they look ahead to the UK REACH registration deadlines and the forthcoming revision of the EU legislation REACH Regulation 1907/2006. Contact our REACH testing teams today with your regulatory testing needs.  

Regulatory Testing for REACH