Current through Register Vol. 48, No. 38, September 20, 2024
a) Fountain Solution Temperature
1) The owner or operator of any lithographic
printing lines relying on the temperature of the fountain solution to
demonstrate compliance shall install, maintain, and continuously operate a
temperature monitor of the fountain solution in the reservoir or fountain tray,
as applicable.
2) The temperature
monitor must be capable of reading with an accuracy of 1°C or 2°F, and
must be attached to an automatic, continuous recording device such as a strip
chart, recorder, or computer, with at least the same accuracy, that is
installed, calibrated and maintained in accordance with the manufacturer's
specifications. If the automatic, continuous recording device malfunctions, the
owner or operator shall record the temperature of the fountain solution at
least once every two operating hours. The automatic, continuous recording
device shall be repaired or replaced as soon as practicable.
b) Fountain Solution VOM Content.
The owner or operator of any lithographic printing lines subject to Section
219.407(a)(1)(A),
(a)(2) or (a)(3) of this Subpart shall:
1) For a fountain solution to which VOM is
not added automatically:
A) Maintain records
of the VOM content of the fountain solution in accordance with Section
219.411(e)(2)(C);
or
B) Take a sample of the
as-applied fountain solution from the fountain tray or reservoir, as
applicable, each time a fresh batch of fountain solution is prepared or each
time VOM is added to an existing batch of fountain solution in the fountain
tray or reservoir, and shall determine compliance with the VOM content
limitation of the as-applied fountain solution by using one of the following
options:
i) With a refractometer or
hydrometer with a visual, analog, or digital readout and with an accuracy of
0.5 percent. The refractometer or hydrometer must be calibrated with a standard
solution for the type of VOM used in the fountain solution, in accordance with
manufacturer's specifications, against measurements performed to determine
compliance. The refractometer or hydrometer must be corrected for temperature
at least once per 8-hour shift or once per batch of fountain solution prepared
or modified, whichever is longer; or
ii) With a conductivity meter if it is
demonstrated that a refractometer and hydrometer cannot distinguish between
compliant and noncompliant fountain solution for the type and amount of VOM in
the fountain solution. A source may use a conductivity meter if it demonstrates
that both hydrometers and refractometers fail to provide significantly
different measurements for standard solutions containing 95 percent, 100
percent and 105 percent of the applicable VOM content limit. The conductivity
meter reading for the fountain solution must be referenced to the conductivity
of the incoming water. A standard solution shall be used to calibrate the
conductivity meter for the type of VOM used in the fountain solution, in
accordance with manufacturer's specifications;
2) For fountain solutions to which VOM is
added at the source with automatic feed equipment, determine the VOM content of
the as-applied fountain solution based on the setting of the automatic feed
equipment which makes additions of VOM up to a pre-set level. Records must be
retained of the VOM content of the fountain solution in accordance with Section
219.411(e)(2)(D)
of this Subpart. The equipment used to make
automatic additions must be installed, calibrated, operated and maintained in
accordance with manufacturer's specifications.
c) Afterburners for Heatset Web Offset
Lithographic Printing Lines.
If an afterburner is used to demonstrate compliance, the
owner or operator of a heatset web offset lithographic printing line subject to
Section
219.407(a)(1)(C)
of this Subpart shall:
1) Install, calibrate, maintain, and operate
temperature monitoring devices with an accuracy of 3°C or 5F° on the
afterburner in accordance with Section
219.105(d)(2)
of this Part and in accordance with the manufacturer's specifications.
Monitoring shall be performed at all times when the afterburner is operating;
and
2) Install, calibrate, operate
and maintain, in accordance with manufacturer's specifications, a continuous
recorder on the temperature monitoring devices, such as a strip chart, recorder
or computer, with at least the same accuracy as the temperature
monitor.
d) Other
Control Devices for Heatset Web Offset Lithographic Printing Lines. If a
control device other than an afterburner is used to demonstrate compliance, the
owner or operator of a heatset web offset lithographic printing line subject to
this Subpart shall install, maintain, calibrate and operate such monitoring
equipment as set forth in the owner or operator's plan approved by the Agency
and USEPA pursuant to Section
219.407(b)
of this Subpart.
e) Cleaning
Solution
1) The owner or operator of any
lithographic printing line relying on the VOM content of the cleaning solution
to comply with Section
219.407(a)(4)(A)
of this Subpart must:
A) For cleaning solutions that are prepared
at the source with equipment that automatically mixes cleaning solvent and
water (or other non-VOM):
i) Install,
operate, maintain, and calibrate the automatic feed equipment in accordance
with manufacturer's specifications to regulate the volume of each of the
cleaning solvent and water (or other non-VOM), as mixed; and
ii) Pre-set the automatic feed equipment so
that the consumption rates of the cleaning solvent and water (or other
non-VOM), as applied, comply with Section
219.407(a)(4)(A)
of this Subpart;
B) For cleaning solutions that are not
prepared at the source with automatic feed equipment, keep records of the usage
of cleaning solvent and water (or other non-VOM) as set forth in Section
219.411(f)(2)
of this Subpart.
2) The
owner or operator of any lithographic printing line relying on the vapor
pressure of the cleaning solution to comply with Section
219.407(a)(4)(B)
of this Subpart must keep records for such
cleaning solutions used on any such lines as set forth in Section
219.411(f)(2)(C)
of this Subpart.