Micro•Cide 28 HLD®  
28-Day Reusable Sterilizing and High-Level Disinfectant Solution
For Medical, Surgical, Endoscopic and Dental Instrumentation
Sporicidal- Bactericidal- Virucidal- Fungicidal
(FDA 510K Approved)

Download the MSDS

DESCRIPTION: Micro-Cide 28 HLD, provides an efficient and safe means for the high-level disinfection or
sterilization of medical, ophthalmic, dental and surgical devices including endoscopes and lensed
instruments. As with all liquid sterilants, this product should be used for instruments and devices that are
heat labile or otherwise incompatible with other methods of biologically monitored sterilization. This product
may be used as a standard soak solution or in automatic reprocessing units set at room temperature.
Unlike some other solutions, there is no need to increase the solution temperature to provide high-level
disinfection in 25 minutes.

CHEMISTRY: Micro-Cide 28 HLD is a surfactant-free, activated glutaraldehyde liquid chemical sterilant
and high-level disinfectant. Its active ingredient is glutaraldehyde in a nominal concentration of 3%. When
the powdered activator is added, the solution turns green in color to indicate its readiness for use. In
addition to the active ingredient, this ready-to-use solution contains buffers, wetting agents, a rust and
corrosion inhibitor and a pleasant fragrance.


MICROBIOLOGY: Micro-Cide 28 HLD produces high-level disinfection at room temperature in as little time
as 25 minutes and complete sterilization in 10 hours at room temperature.

Representative microorganisms tested include:   
  • Bacterial Spores Mycobacteria
  • Bacillus subtillus Mycobacterium tuberculosis (var: bovis)
  • Clostridium sporogenes   

Vegetative Bacteria Viruses
  • Staphylococcus aureus Herpes simplex virus Type I
  • Salmonella cholerasuis Poliovirus Type I
  • Pseudomonas aeruginosa HIV-1 (Associated with AIDS)

  •  Trichophyton mentagrophytes

(Studies were performed after 28 days of simulated re-use following prescribed AOAC testing methods).

Clinical / In-Use Studies: Reprocessing flexible fiber endoscopes in-use studies supports the effectiveness
of Micro-Cide 28 HLD in actual use. (ASTM 1518-94 protocol). In addition, a simulated use-test was
conducted to support the contact condition for high-level disinfection of endoscopes at 25°C at 25
minutes. The results demonstrate the effectiveness of Micro-Cide 28 HLD to kill M.Terrae dried on flexible
fiber endoscopes.