licensees must provide copies of results from DEF batch
testing performed the previous year by independent,
outside chemical labs. The tests cost $600 each.
Producers of 50,000-gallon DEF batches can pass the
costs along, but producers of 2,000- to 5,000-gallon
batches can’t afford testing. Few DEF prilled urea
producers have applied for and have been approved to
use the API certi;cation mark. The identity and
number of other DEF prilled urea producers in North
America is dif;cult to determine.
2. NIST Handbook 130. As of Jan. 1, retail DEF
dispensers have had labeling requirements, and
distributors must provide to fueling site customers the
names of DEF manufacturers, brand names and
statements that products conform to the latest ISO
3. Weights and measures. Effective as of April, 23 states
have adopted legislation meeting requirements in No.
2. Five states have proposed the legislation, and others
are expected to do the same.
4. The importance of establishing a long-term DEF
marketer-supplier relationship that meets all requirements and whether the long-term DEF marketer
selected will warranty its DEF deliveries. (I know of
one North American DEF marketer that does this.)
BULK STORAGE/DISPENSING REQUIREMENTS
Diesel fueling sites that require DEF bulk storage and
remote dispensing system installations, at a minimum, must:
1. Install new bulk double-walled ;berglass underground storage tanks (USTs) manufactured for DEF.
(Two U.S. manufacturers supply this product). Another
option is to install double-walled stainless steel USTs.
The minimum size UST required for lowest-cost DEF
bulk delivery is 8,000 gallons. Underground DEF
storage provides the maximum ambient temperature
protection: a 36-month shelf life regardless of North
American location. All DEF UST system equipment
components must use materials that are DEF-compatible and that prevent water intrusion.
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