Tag Archives: managing

control the room environment

Environmental Controls: The Basics

By Vince Sebald
No Comments
control the room environment

The outside environment can vary widely depending on where your facility is located. However, the internal environment around any activity can have an effect on that activity and any personnel performing the activity, whether that’s storage, manufacturing, testing, office work, etc. These effects can, in turn, affect the product of such activities. Environmental control strategies aim to ensure that the environment supports efforts to keep product quality high in a manner that is economical and sensible, regardless of the outside weather conditions.

For this article, let us define the “environment” as characteristics related to the room air in which an activity is performed, setting aside construction and procedural conditions that may also affect the activity. Also, let us leave the issue of managing toxins or potent compounds for another time (as well as lighting, noise, vibration, air flow, differential pressures, etc). The intent here is to focus on the basics: temperature, humidity and a little bit on particulate counts.

Temperature and humidity are key because a non-suitable environment can result in the following problems:

  • Operator discomfort
  • Increased operator error
  • Difficulty in managing products (e.g. powders, capsules, etc)
  • Particulate generation
  • Degradation of raw materials
  • Product contamination
  • Product degradation
  • Microbial and mold growth
  • Excessive static

USP <659> “Packaging and Storage Requirements” identifies room temperature as 20-25°C (68-77 °F) and is often used as a guideline for operations. If gowning is required, the temperature may be reduced to improve operator comfort. This is a good guide for human working areas. For areas that require other specific temperatures (e.g. refrigerated storage for raw materials), the temperature of the area should be set to those requirements.

Humidity can affect activities at the high end by allowing mold growth and at the low end by increasing static. Some products (or packaging materials) are hydroscopic, and will take on water from a humid environment. Working with particular products (e.g. powders) can also drive the requirement for better humidity control, since some powders become difficult to manage in either high or low humidity environments. For human operations without other constraints, a typical range for desirable humidity is in the range of 20 to 70% RH in manufacturing areas, allowing for occasional excursions above. As in the case of temperature, other requirements may dictate a different range.

control the room environment
In some cases, a locally controlled environment is a good option to reduce the need to control the room environment as tightly or to protect the operator.

In a typical work environment, it is often sufficient to control the temperature, while allowing the relative humidity to vary. If the humidity does not exceed the limits for the activity, then this approach is preferred, because controlling humidity adds a level of complexity (and cost) to the air handling. If humidity control is required, it can be managed by adding moisture via various humidification systems, or cooling/reheating air to remove moisture. When very low humidity is required, special equipment such as a desiccant system may be required. It should be noted that although you can save money by not implementing humidity control at the beginning, retrofitting your system for humidity control at a later time can be expensive and require a shutdown of the facility.

Good engineering practice can help prevent issues that may be caused by activities performed in inappropriately controlled environments. The following steps can help manage the process:

  • Plan your operations throughout your facility, taking into account the requirements for the temperature and humidity in each area and know what activities are most sensitive to the environment. Plans can change, so plan for contingencies whenever possible.
  • Write down your requirements in a User Requirement Specification (URS) to a level of detail that is sufficient for you to test against once the system is built. This should include specific temperature and RH ranges. You may have additional requirements. Don’t forget to include requirements for instrumentation that will allow you to monitor the temperature and RH of critical areas. This instrumentation should be calibrated.
  • Solicit and select proposals for work based on the URS that you have generated. The contractor will understand the weather in the area and can ensure that the system can meet your requirements. A good contractor can also further assist with other topics that are not within the scope of this article (particulates, differential pressures, managing heating or humidity generating equipment effects, etc).
  • Once work is completed, verify correct operation using the calibrated instrumentation provided, and make sure you add periodic calibration of critical equipment, as well as maintenance of your mechanical system(s), to your calibration and maintenance schedules, to keep everything running smoothly.

The main point is if you plan your facility and know your requirements, then you can avoid significant problems down the road as your company grows and activity in various areas increases. Chances are that a typical facility may not meet your particular requirements, and finding that out after you are operational can take away from your vacation time and peace of mind. Consider the environment, its good business!

OLCC-Logo

Audit Finds Oregon Lacking Regulatory Oversight and Proper Security

By Aaron G. Biros
No Comments
OLCC-Logo

Last week, Oregon Secretary of State Dennis Richardson published his office’s audit of The Oregon Liquor Control Commission (OLCC). The audit uncovered a number of inadequacies with the regulatory agency, most notably the problems with their tracking system, designed to prevent cannabis form being sold on the black market.

The report highlights the need for Oregon to implement a more robust tracking system, citing reliance on self-reporting, overall poor data quality and allowing untracked inventory for newly licensed businesses. The audit also found an insufficient number of inspectors and unresolved security issues. According to The Oregonian, the OLCC only has 18 inspectors, roughly one for every 83 licensed businesses.

Auditors also found inadequacies in the application system, saying the OLCC doesn’t monitor third-party service providers and doesn’t have a process in place for reconciling data between the licensing and tracking systems. The audit found there is a risk that decisions made for the program could be based on unreliable data. It also found a risk of unauthorized access to the systems, due to a lack of managing user accounts.

Oregon Secretary of State Dennis Richardson
Oregon Secretary of State Dennis Richardson

This audit’s publication is very timely. Most notably because U.S. Attorney Billy Williams, who called Oregon’s black market problem “formidable,” convened a summit this week to examine how Oregon can prevent cannabis being exported to other states. According to the Oregonian, Williams said Oregon has an “identifiable and formidable overproduction and diversion problem.” The audit’s findings highlighting security issues are also very timely, given that in the same week, Oregon’s neighbor to the North, Washington, experienced a security breach in its own tracking system.

The problems with the Oregon tracking system’s security features are numerous, the audit says. They found that the OLCC lacks a good security plan, IT assets aren’t tracked well, there are no processes to determine vulnerabilities, servers and workstations not using supported operating systems and a lack of appropriately managing antivirus solutions. “Long-standing information security issues remain unresolved, including insufficient and outdated policies and procedures necessary to safeguard information assets,” reads the report’s summary.

The audit proposes 17 recommendations for the state to bolster its regulatory oversight. Those recommendations intend to address undetected compliance violations, weaknesses in application management, IT security weaknesses and weaknesses in disaster recovery and media backup testing. You can read the full audit here.