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Electron Microscopy Sciences

Technical Data Sheets

Micro Cleaning Solution (Micro-90)

EMS Catalog #71054, 71055, 71056, 71057

About Micro Cleaning Solution (Micro-90)

A mild, yet powerful, multi-purpose cleaner that is effective in both industrial and critical cleaning applications. Its unique formulation of chelants, ionic, and non-ionic ingredients produces a variety of cleaning actions that include lifting, dispersing, emulsifying, sequestering, suspending and decomposing. Target soils include oil, grease, wax, tar, flux, particulates, hard water stains and biological debris. Outstanding for cleaning labware, ceramics, stainless steel, and defouling filter membranes.

Instructions for Use

Cleaning protocols tend to vary depending on individualized application, however, the following points in general pertain to most applications:

  • Micro Cleaning Solution (Micro-90) is a concentrate and should be diluted with water before use. A basic solution of 1-2% of cleaner in water is recommended.
  • The best way to determine your optimum cleaning cycle us to experiment with controllable variables including: the temperature of solution, dwell time, type of cleaning action, concentrations of detergent in the solution, and the type of water used. Temperature is the best way to speed up the cleaning action. The maximum suggested operating temperature may vary depending on individualized application.
  • A thorough rinsing or flushing step should follow the cleaning. For critical cleaning applications, use deionized or distilled water. Rinsing with ordinary water may bring unwanted contamination. For food contact surfaces, rinse with potable water.
  • While these cleaner are compatible with most materials, it is recommended to practice the test for compatibility before using the cleaner on materials that cannot be replaced.

Cleaning Dilution Protocols

Micro Cleaning Solution, also known as Micro-90, should be diluted with water before use. The charts below are helpful in determining the amount of cleaner to be added to a tank. Please take note that adding water to the solution too quickly may cause the cleaning solution to foam. To avoid this, pour the water first, then add the cleaning solution.


U.S. Tank Sizes
(Concentration of cleaner)

Tank Size 0.5% 1.0% 2.0% 5.0%
1 Quart ⅙ ounce ⅓ ounce ⅔ ounce 1½ ounces
1 Gallon ⅔ ounce 1¼ ounces 2¾ ounces 6½ ounces
3 Gallons 2 ounces 3¾ ounces 7¼ ounces 19¼ ounces
5 Gallons 3¼ ounces 6½ ounces 12¾ ounces 1 quart
10 Gallons 6½ ounces 12¾ ounces 25½ ounces 2 quarts
25 Gallons 16 ounces 1 quart 2 quarts 1¼ gallons
50 Gallons 1 quart 2 quarts 1 gallon 2½ gallons
100 Gallons 2 quarts 1 gallon 2 gallons 5 gallons


Metric Tank Sizes
(Concentration of cleaner)

Tank Size 0.5% 1.0% 2.0% 5.0%
1 Liter 5 ml 10 ml 20 ml 50 ml
4 Liters 20 ml 40 ml 80 ml 200 ml
10 Liters 50 ml 100 ml 200 ml 500 ml
20 Liters 100 ml 200 ml 400 ml 1 liter
40 Liters 200 ml 400 ml 800 ml 2 liters
100 Liters 500 ml 1 liter 2 liters 5 liters
200 Liters 1 liter 2 liters 4 liters 10 liters
400 Liters 2 liters 4 liters 8 liters 20 liters


Exhaustion of Cleaning Strength

These cleaning solutions are formulated with several different cleaning ingredients, and they will continue to clean until one more of their ingredients is depleted. Cleaning tasks tend to exhaust different ingredients at different rates, therefore it is difficult to predict how long a solution will perform in a given application. A good rule of thumb is that if the pH of the cleaning solution decreases by one full pH unit, the solution may be weakening and should be changed or replenished.


When properly rinsed, these cleaners leave no residue. The most simple way to test for residue is to dip a glass slide into the rinse water and remove it. If the rinse water flows smoothly over the slide, there is no residue. If the water beads or streaks, more rinsing is required.

Storage and Handling

  • Store between 2-43°C (32-110°F) in a cool, cry, well-ventilated area. Protect containers from sunlight and keep closed when not in use. Use only stainless steel, polyethylene, or plastic-lined containers for storage. Do not store Micro Cleaning Solution (Micro-90) in contact with aluminum, zinc, copper, or their alloys.
  • Dilute before use. Typically a 1-2% solution will be effective.
  • Compatible with most metals, plastics, and other hard surfaces; however, users are encouraged to ensure their parts are compatible with Micro Cleaning Solution (Micro-90) before they are put into production or application.
  • Cleaning action may be improved by increasing temperature, dwell time, concentration, and by using ultrasonics or agitation.

Please Note: Do not mix Micro Cleaning Solution (Micro-90) with other products.

Product Information

Micro Cleaning Solution (Micro-90)