Charm ROSA Beta-lactam 30 Second Test (BL30SEC)

Products / Test and Kits / Antibiotic Tests / ROSA Lateral Flow / BL30SEC – Charm ROSA Beta-lactam 30 Second Test

Charm Rapid One Step Assay (ROSA) technology is trusted by the dairy industry worldwide for fast and accurate milk residue screening. The Charm ROSA Beta-lactam 30 Second Test (BL30SEC) detects six beta-lactam drugs in raw commingled cow milk at or below US Safe Levels and is approved by the National Conference of Interstate Milk Shipments (NCIMS) for screening milk tankers according to the Pasteurized Milk Ordinance Appendix N requirements.

Taking only 30 seconds, the BL30SEC test is the fastest available test for antibiotics in milk, and opens up new possibilities for dairy efficiency, sustainability, and automation. 


  • Achieves results in 30 seconds
  • Incubates at 56 °C
  • Results can be read using the Charm EZ system

Regulatory Info

  • Detects all 6 US approved beta-lactam drugs at or below US Safe Levels
  • Approved by NCIMS for screening milk tankers

Charm tests can help you lower operating costs and improve transportation efficiency by clearing good milk quickly. Charm’s patented ROSA technology targets drug sensitivities as close to regulatory levels as possible, preventing the unnecessary rejection of milk that can be caused by overly sensitive screening tests.

Charm’s ROSA portfolio includes tests for the detection of the most common antibiotics and aflatoxin M1. Charm ROSA strips are manufactured to test for US tolerance levels, EU MRL/CODEX, Canadian MRLs, multiple other country-specific requirements, and have been granted approval by regulatory authorities around the world.

Speed, ease of use, and minimal equipment requirements make ROSA tests incredibly versatile; they can be run by farmers, veterinarians, truck drivers, milk receiving, and milk testing laboratories.

Test results from ROSA strips can be read and officially recorded using the Charm EZ system or Charm EZ Lite system, or they can be interpreted visually in an unofficial capacity, making them ideal for farm use.


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