Subscribe to Controlled Environments

Desalting the Ocean, One Nanoliter at a Time

July 11, 2013 12:31 pm | Comments

By creating a small electrical field that removes salts from seawater, university chemists have introduced a new method for the desalination of seawater that consumes less energy and is dramatically simpler than conventional techniques.

Automated Contamination

July 1, 2013 12:00 am | by Tim Studt | Comments

Letter From the Editor - July/August 2013                                                           

June 27, 2013 12:32 pm | Comments

Working Without a Cleanroom

June 26, 2013 10:24 am | Comments

Manufacturers often ask how to achieve a clean space without using a cleanroom. There are many reasons to do this, including achieving a reasonable process flow and assuring economic competitiveness. Evaluate gloves and other protective equipment. Particularly at non-cleanroom stages of production, the Industrial Hygienist may be in charge of specification.


Performing a Clean Zone Smoke Test

June 21, 2013 3:13 pm | by Ruben Contreras | Comments

To test a clean zone, there are several issues like smoke reflux, dead spots, and numerous smoke deviations to look for. It is important not to separate the media filter from the wall since the farther it is from the wall, the more reflux can be found.


Detecting Microorganisms

June 14, 2013 10:39 am | Comments

Alternative technologies are available for the rapid detection of microorganisms.


Adapting the Plant Technology

June 12, 2013 12:54 pm | Comments

To ensure efficient and reproducible cleaning, it is essential to match the cleaning agent to the plant technology. That is why so many different cleaning systems are available.


Cleaning in Electronics Manufacturing

June 7, 2013 12:54 pm | by Doris Schulz | Comments

The ever-increasing demand for reliability, continuing miniaturization, and the growing number of faults in electronic components manufactured in no-clean processes all combine to put the focus back on cleaning in electronics manufacturing. The industry offers a variety of solutions to finding the optimal cleaning process.


Rapid Microbiological Methods

June 7, 2013 12:27 pm | by Beth Ann Brescia | EMD Millipore Corporation | Comments

Compendial microbiological methods have been in existence for many years, with only minor changes being incorporated. Recently, more rapid technologies have emerged and, in some cases, have received regulatory approval as alternatives to the traditional compendial tests.


Access Control in Cleanrooms

June 7, 2013 11:55 am | by Bryan Sanderford | Comments

When cleanrooms are used in manufacturing or scientific research, the doors and framing materials must have proper gaskets and seals to not allow contaminated air in or out of the area, and the door hardware must close and reseal after each personnel passage. However, additional door devices—such as card access systems, electric locks, station controls, and traffic lights—may be necessary to limit access to authorized persons.


Performing a Clean Zone Smoke Test

June 6, 2013 12:32 pm | by Ruben Contreras | Comments

As a Registered Cleanroom Certification Professional, I have seen an increase in the use of "clean zones" inside of cleanrooms in pharmacies. There are numerous types of unidirectional-flow devices that have been used in the past; however, when using a unidirectional-flow device in the compounding processes, the suppliers, customers, and certifiers need to keep in mind the meaning of the direct compounding area, first air, and critical site.


HVAC Strategies for the Cleanroom

June 6, 2013 12:06 pm | by Richard A. Bilodeau | Comments

The HVAC system in any controlled environment is the kingpin of clean. When it comes to cleanroom HVAC, it's all about contaminants and environment control.                                            


Clean Space Without a Cleanroom

June 6, 2013 11:55 am | by Barbara Kanegsberg, Ed Kanegsberg | Comments

Manufacturers often ask how to achieve a clean space without using a cleanroom. There are many reasons to do this, including achieving a reasonable process flow and assuring economic competitiveness. A clean space involves basic design and structure. Achieving a clean space involves coordinating engineering planning and production activities with the facilities group, the customer, and with safety/environmental professionals.


Politics and BSL

June 1, 2013 12:00 am | by Tim Studt | Comments

Letter from the Editor - June 2013                                                             

Why Validate?

May 31, 2013 10:23 am | Comments

You will want to consult with several cleanroom design/build construction companies to get their proposals for building an aseptic cleanroom to your specifications as well as the ISO 14644 and IEST industry standards.



You may login with either your assigned username or your e-mail address.
The password field is case sensitive.