marwian services

»Bring your products and business to the next level by giving us the opportunity to share our expertise and knowhow.«

»Apply Xliquid® in your products and/or test your product with Xliquid® in our laboratory. See if your new product has passed the required antimicrobial efficacy protocol. «


Customers benefit from our in-house microbiology with experienced and well-trained professionals.

We do not only offer a wide range of internal SOPs (storage stability, MIC, etc.) and various test standards (ASTM D5590, ISO 22196, ÖNORM EN ISO 20645, EN1276, EN13697, ASTM E 2180, ASTM E 2149, JIS Z 2801/ISO 22196, JIS L 1902/ISO 20743, ISO 846etc.), but also adapt our testing methods to individual customer requirements with a lot of outstanding creativity and commitment.

Our tested microorganisms are those, which are mainly found in the environment (maximum BSL2). In case of bacteria, for example Staphylococcus aureus, MRSA, Escherichia coli and Pseudomonas aeruginosa are used for investigations, and in case of fungi for example Aspergillus niger and Candida albicans.

Marwian Services Microbiology

Contact us, if you want to apply Xliquid® in your products or substitute/ combine your existing preservatives like Methylisothiazolinon (MIT), Chlormethylisothiazolinon (CIT), Benzisothiazolinon (BIT) or other Isothiazolinones with Xliquid® and create label free end products.

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Marwian Services Analytics and Quality Control

Test according to the IBRG:

  • IBRG PDG16-007.3 (Tier 1 Method for Determining the Basic Efficacy of Biocidal Active Substances used to Preserve Aqueous-Based Products).
  • ASTM D 4783-01 (Standard Test Method for Resistance of Adhesive Preperations in Container to Attack by Bacteria, Yeast, and Fungi).
  • ASTM D 2574-16 (Standard Test Method for Resistance of Emulsion Paints in the Container to Attack by Microorganisms).

ECHA recommends these test methods for various end products which fall under the PT6 category of the BPR.

Xliquid® passes those tests alone. Combining with other active substances increases efficacy while decreasing in use level of both active substances. This leads to label free end products which are often desired.