By: Yanche On: Mon Apr 02, 2007 1:03 pm
I've been trying to understand this "code thing" in general. My understand is still not complete. In general the state law delegates to the local jurisdiction the building codes. Where there has been a particular tragedy, many deaths, etc. the state law might mandate something. The local jurisdiction, county, township, town, borough, city, etc. then decides what the code requirements will be and uses it's law making powers to enforce them. In many places they refer to one of several national building code standards, e.g. "Building Officials and Code Administrators" (BOCA). For fire standard these building codes in turn reference the National Fire Protection Association codes. This is the often referenced NFPA 211. Here's where it gets a bit fuzzy. NFPA 211 gives general requirements but also states, "unless otherwise listed by the manufacturer". That means the manufacturer gets to set the standard and assume the product liability. Now the manufacturer wants to cover his butt so he finds a product testing laboratory to approve his product. There are many product testing labs, e.g. Underwriters Laboratories (UL). UL is a non-profit lab but there are many others that are "for profit" testing laboratories. These testing labs create a testing standard based on their best engineering judgment and field experience. The product is then tested to that standard. What frequently gets misinterpreted is "UL" approved. "UL" approval is meaningless unless it also tells you to what particular standard. It may have an approval for something that has nothing to do with what you are concerned about. For example a stoker motor could have a "UL" approved power cord but that doesn't mean it's somehow "UL" approved for fire safety. Another term to be aware of is "tested to". This usually means the product is tested but not by the laboratory that produced the test standard. The manufacturer might even do it's own product safety testing! The bottom line is, you the consumer has an almost impossible job of making any sense of it.
I welcome comments, especially those with some paper trail to a standard. I'd especially like to understand how "direct vent" coal stoves, furnaces and boilers are "approved". Remember the crap is not finished until the paper work is done!
I once had a vendor try to sell me something that was MIL approved. It had the complete military specification number listed on the label. I looked it up. It was the MIL spec for label printing! It had nothing to do with what was in the can.
Yanche