Bronolab Liquid Milk Preservative | Advanced Instruments
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Broad Spectrum MicroTabs

Highlighted Features
  • Long-lasting preservation
  • 14 Days without refrigeration
  • Non-interfering

Broad Spectrum MicroTabs

Broad Spectrum Microtabs II (BSM) is a tablet preservative containing a combination of Bronopol and Natamycin which prevents bacteria and yeast and mold. It is used to preserve milk samples, which will be analyzed on infrared instruments. It is an ideal preservative solution for longer-term preservation of milk samples when a short sample analysis turnaround time and refrigerated storage conditions cannot be guaranteed. It is available in convenient dispenser packs containing 800 tablets and also in bulk tubs containing 35,000 tablets.



18 mg tablet contains 8 mg Bronopol and 0.30 mg Natamycin inhibits BOTH bacteria and yeast & mold, provides extended shelf, and reduces lipolysis in milk samples


BSM tablets dissolve quickly in the milk sample. For added convenience BSM is available in either a tablet dispenser or a bulk tub container.


Specially formulated to minimize interference with Infrared test results using normal laboratory techniques on traditional components


BSM has a 4 year shelf life and 1 tablet is enough to preserve a 20-40mL milk sample. Samples preserved with BSM can be held at room temperature (22-25ºC) for at least 14 days without sample degradation.


Dispenser eliminates direct handling of product; Non-irritating to skin, non-carcinogenic and non-mutagenic

Associated Products


822Bronolab W-II Liquid Preservative, 1 L Bottle
953Broad Spectrum Microtabs-II, 800 tablets/dispenser
954Broad Spectrum Microtabs-II, 35,000 tablets/tub

Educational Resources


D & F Control Systems, Inc. Brochure


The Effect of Bronopol on the Freezing Point and Impedance of Milk Samples