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D7566

D7566 is the ASTM International standard specification for aviation turbine fuel containing synthesized hydrocarbons. It defines the properties, performance requirements, and testing methods for fuels that include blends of synthesized hydrocarbon fuels with conventional aviation turbine fuels.

D7566 covers hydrocarbon types such as Fischer-Tropsch (FT) synthetic kerosene, gas-to-liquid (GTL) products, and hydroprocessed esters

D7566 is used in conjunction with other aviation-fuel standards, notably ASTM D1655 for Jet fuel, to certify

See also: Aviation turbine fuel, Synthetic fuel, ASTM D1655, HEFA, Fischer-Tropsch.

and
fatty
acids
(HEFA)
fuels.
It
allows
blending
with
conventional
Jet
A
or
Jet
A-1
fuels
up
to
a
maximum
specified
blend
limit
(commonly
up
to
50%
by
volume,
though
the
limit
may
vary
with
the
specific
blend
and
regulatory
approvals).
The
standard
specifies
key
properties
including
density,
freezing
point,
net
heat
of
combustion,
viscosity
at
specified
temperatures,
sulfur
content,
aromatics,
flash
point,
and
oxidative
stability,
as
well
as
requirements
for
storage,
contamination
control,
and
materials
compatibility.
the
performance
and
compatibility
of
blended
fuels
for
aviation
use.
It
has
been
adopted
by
major
fuel
producers
and
airlines
and
underpins
the
development
and
deployment
of
sustainable
aviation
fuels
derived
from
biological
or
synthetic
processes.