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{longname} Q762. Are subpart N reporters able to use a default assumption of 1.0 in Equation N-1 for determining calcination fraction of carbonate-based raw materials charged to glass melting furnaces? How does this impact monitoring? {longname} |
A762.
...
The
...
rule
...
allows
...
flexibility
...
for
...
reporters
...
to
...
use
...
either
...
(a)
...
the
...
default
...
assumption
...
of
...
1.0
...
or
...
(b)
...
methods
...
that
...
use
...
measured
...
data,
...
such
...
us
...
undertaking
...
chemical
...
analysis
...
to
...
determine
...
calcinations
...
and
...
mass
...
fractions,
...
using
...
an
...
x-ray
...
fluorescence
...
test,
...
or
...
other
...
enhanced
...
testing
...
method
...
published
...
by
...
an
...
industry
...
consensus
...
standards
...
organization
...
(e.g.,
...
ASTM,
...
ASME,
...
API,
...
etc.)
...
to
...
determine
...
the
...
calcination
...
fraction
...
(Fi)
...
of
...
each
...
carbonate-based
...
raw
...
material
...
charged
...
to
...
glass
...
melting
...
furnaces
...
[
...
...
]
...
.
...
If
...
the
...
reporter
...
opts
...
to
...
use
...
the
...
default
...
value
...
of
...
1.0,
...
then
...
a
...
chemical
...
analysis
...
does
...
not
...
have
...
to
...
be
...
completed
...
for
...
that
...
reporting
...
year.
...
This
...
is
...
consistent
...
with
...
EPA’s intent
...
in
...
the
...
response
...
to
...
comments
...
to
...
the
...
final
...
rule,
...
published
...
10/30/2009
...
[
...
...
...
...
]
...
.
...
See
...
Section
...
5,
...
Other
...
Subpart
...
N
...
comments
...
(see
...
p.
...
4
...
within
...
this
...
document):
...
http://www.epa.gov/ghgreporting/documents/pdf/2009/SubpartN-GlassProduction.pdf
...
.
...
Further,
...
within
...
Subpart
...
N,
...
this
...
guidance
...
is
...
consistent
...
with
...
similar
...
flexibility
...
to
...
use
...
an
...
analysis
...
or
...
a
...
default
...
assumption
...
for
...
determining
...
the
...
mass
...
fraction
...
of
...
carbonates
...
charged
...
to
...
glass
...
melting
...
furnaces
...
under
...
98.143(c).
...
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{info}
Source: A McKitrick and M Litwack - 8/19/2013
Approval / Publishing History: Version 1
Expiration: none
Relevant Subparts: Subpart N
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