Jim, Which metric units and prefixes were recommended by NIST?
Ezra -------------- Original message ---------------------- From: James Frysinger <[EMAIL PROTECTED]> > I happened to be at Gaithersburg at the time (2008 April) and so was > fortunate to be able to sit in on a briefing that Lorelle Young, USMA's > President, was given by NIST on many matters. One of those was on the > dispensing of H2 in California, on which NIST had been consulted. > Lorelle and I thus had opportunity to comment on this as well as the > other matters. Three quantities are involved: system pressure, quantity, > and cost. The unit recommendations made by NIST were all metric, of > course. Apparently the current design is for two possible system > pressures; vehicles must be refueled from a facility that uses the same > pressure and there are thoughts of having the cars' GPS's automatically > indicate the nearest matching station. > > Jim > > Phil Chernack wrote: > > As far as I can tell, hydrogen has always be dispensed by the kg. Even > > the president made mention of it in a State of the Union address a few > > years back. When fuel cell cars become more widespread, I can't see any > > other unit being used to dispense hydrogen. > > > > Phil > > > > On Tue, Jul 1, 2008 at 12:45 AM, Victor Jockin <[EMAIL PROTECTED] > > <mailto:[EMAIL PROTECTED]>> wrote: > > > > I've been doing some more digging on this issue, and I may have > > jumped the gun when I said that California law requires the retail > > dispensing of hydrogen fuel in kilograms. The "workshop" document I > > distributed a link to, which summarizes major elements of the law, > > has a bullet indicating that H2 is to be dispensed in kilograms. > > But the law itself, while using only metric units throughout its > > text (kilograms and metric tons) does not, as far as I can tell, > > explicitly require retail dispensing in kilograms. What it does > > require is that retailers report sales to the state in kilograms. > > Also, certain trigger points (the definition of a low volume > > retailer) are set in metric units. Here's the full bill that got > > signed into law: > > > > > http://www.leginfo.ca.gov/pub/05-06/bill/sen/sb_1501-1550/sb_1505_bill_20060930_ > chaptered.pdf > > > > So a retailer who sold in pounds and reported sales to the state in > > kilograms would not, as far as I can tell, be in violation of this > > law. And of course, this law applies only in California. > > > > This just underlines my point that we need to be on top of this > > important emerging battlefront. There is still time to influence > > the future now, and we were handed an early tenuous victory by the > > CA legislature and some European oil companies. That lead could > > very easily vanish (and in my opinion, probably will) with a > > national retail build out of H2 stations. Someone within USMA needs > > to research this issue and start crafting a national strategy that > > will make the most of our limited resources and influence. I can > > try to help, but who else does these kinds of things within our > > organization? For example, what bills might be pending in other > > states? Are any other potential H2 retailers planning stations? > > Can NIST get involved (at least write opinions)? What can we do to > > cheer on Shell and BP for dispensing in kg's now? etc. > > > > > > -- > James R. Frysinger > 632 Stony Point Mountain Road > Doyle, TN 38559-3030 > > (H) 931.657.3107 > (C) 931.212.0267 >
