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the precast
concrete
association
of virginia
New EPA Standards
Mark Porreca
Federal EPA stands on volatile organic compounds (VOC) contents took effect
in September. Despite previous delays, the EPA finally has resolved the
allowable limits and we do not expect any more surprises.
In
everyday production, farm release agents are subject to these regulations.
VOC are typically solvents, i.e. liquids that dissolve other things.
Solvents can come in the form of mineral spirits ox even water. When
referring to solvents, however, federal and state regulators generally mean
diesel fuel, benzene, xylol and similar VOC solvents. Haw are they measured?
These compounds give off a substance (organic material) when heated to 225
degrees Fahrenheit. Federal standards are 450 grams per liter, so the new
federal EPA standard doesn't eliminate but rather regulates allowable
quantities.
Individual states rosy have more stringent regulations than the federal
government. For example, New
Jersey, New
York and California are currently requiring a limit of 250 g/1. So you need
to be aware of what product is being shipped where. Chances are you may be
required to meet a particular state regulation, regardless of where your
product is manufactured.
While a good quality reactive form release chemically changes and the
carrier (be it mineral spirits, etc.) evaporates and nothing is actually
transferred to the concrete doesn't insure that the destination state will
accept this argument.
The
best policy, if you want to be sure to cover all the bases, is to adhere to
the most stringent EPA state requirement an each of your products.
What
about water‑based releases? They are not necessarily user friendly or EPA
compliant. They can be toxic and/or carcinogenic. MSDS sheets alone do not
necessarily determine EPA friendliness either. Check labels and
specification sheets. As form releases, they sometimes are hard to use,
subject to viscosity changes due to temperature fluctuation: and Class I or
Class II finishes also are difficult to achieve.
In
closing, a reminder: In the struggle to meet deadlines, produce high quality
product and still show a profit, we sometimes forget with form releases that
application procedures are as important as product quality.
If
you are interested in more analysis regarding farm releases, contact me at
(800) 332‑7090. I can send you taro brochures that go into
more detail on this
subject.
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