Instructions for Form B4-6H “EMISSION SOURCES MISCELLANEOUS SURFACE COATING/AUTOBODY REFINISHING”
One Form B4-6H must be completed for each emission source (prep station, paint booth, and other emission sources)
involving miscellaneous spray painting/coating operations. Make as many copies of the form as necessary; two copies
are included with this instruction. If two or more emissions sources are identical, then one form may be used to
represent all of the units, but each unit must have its own Emission Source ID No. and be indicated on the form. This
form is available on the MCAQ website at: http://airquality.charmeck.org. and can be downloaded for submission.
1.0 EMISSION SOURCE
1.1 TYPE OF SOURCE – Specify the applicable type of source, or if other, then describe in comments section. If you
use portable or stationary internal combustion engines/generators on site (this does not include the vehicles being
painted/coated), additional rules will apply (call MCAQ at (704) 326-5430).
1.2 For prep stations or spray booths, the design must be compliant with 40 CFR 63 Subpart HHHHHH (“Subpart
6H”) requirements by the compliance date. Indicate whether the design meets the regulatory requirements. The
regulation may be found at: http://ecfr.gpoaccess.gov/cgi/t/text/textidx?c=ecfr&sid=62577d35acd33a2cf876e38cd2a50b08&rgn=div6&view=text&node=40:14.0.1.1.1.20&idno=40.
1.3 EMISSION SOURCE DESCRIPTION – Describe each emission source for which application is made. Emission
source is defined as any stationary article, machine, process equipment, or other contrivance, or combination
thereof, from which air pollutants emanate or are emitted, either directly or indirectly. If two or more emissions
sources are identical (e.g., spray booths that are the same manufacturer and model #) may be listed once, but
this description should specify the number of individual pieces of equipment included.
1.4 EMISSION SOURCE ID No. - Enter the emission source ID No. for the emission source being described on this
form. The ID No. will begin with ES- with the choice of the following numbers or letters at the discretion of the
applicant. For identical emission sources/equipment grouped together, each unit must have its own Emission
Source ID No.
1.5 MANUFACTURER - Enter the manufacturer of the emission source.
1.6 MODEL NO. – Enter the model number of the emission source.
1.7 MAXIMUM NO. OF UNITS PROCESSED – Enter the maximum expected or actual production rate/number of
units processed on weekly basis and annually. This should be the maximum number of units (cars, trucks, parts,
etc.) processed per week and annually (use highest actual in the last 5 years, or maximum planned) that the
facility can handle.
1.8 METHOD OF SPRAY – Check the type of spray applicator used in the coating operation if applicable to the
emission unit being described. The spray guns listed are those permitted by the Subpart 6H regulation. If an
equivalent spray gun is listed, it must have EPA approval, and you must supply a copy of the EPA equivalency
determination with this form.
1.9 NUMBER OF GUNS PER STATION – Specify the number of spray guns used with the emission unit if
applicable.
TRANSFER EFFICIENCY – Enter the % (expressed as decimal) of solid which actually is applied to items being
sprayed, take into consideration solid lost due to overspray, etc. Use the following default values or provide
documentation for other. The numbers below are typical. Your numbers may vary:
.25 – air atomized
.25 – airless spray
.60 – manual electrostatic spray
.70 – nonrotational automatic electrostatic spray
.80 – rotating head electrostatic (manual and automatic)
.90 – dip coat and flow coat
.95 – electrodeposition
PARTICULATE CAPTURE EFFICIENCY – Enter the % (expressed as decimal) of overspray which is captured
from the process and sent to the exhaust air stream. The capture efficiency will generally approach 100% for
three-sided spray booths operating under sufficient negative pressure.
1.10 EXHAUST CONTROL – Specify the applicable exhaust control method, or if other, then describe in comment
section.
Mecklenburg County Air Quality – Application
B4-6H Form Instruction, 11/2010
2.0 FUEL USAGE
2.1 TOTAL MAXIMUM FIRING RATE (million Btu/hour) – Many coating operations require the use of dryers,
heaters, or ovens to speed the drying process. This does not include building comfort heating or sanitary water
heating. If there are any heaters associated with the coating operation, enter the total maximum firing rate for all
process burners, if any, based on the heat input.
2.2 HEATING METHOD – Specify the method of heating as direct fired, electric, steam, or other.
2.3 FUEL USED –Specify the type of fuel used if there is any associated with the process or if stationary or portable
engines are used (e.g., diesel, no.2 fuel oil, natural gas, LPG, etc.).
2.4 ACTUAL FUEL USAGE
 ANNUAL – Enter the actual amount of fuel consumed in one year by the emission source.
 HOURLY – Enter the actual amount of fuel consumed in one hour.
 UNITS – Enter the units of the listed fuel (e.g., gallons, cubic feet, pounds, etc.).
2.5 MAXIMUM FUEL USAGE
 ANNUAL – Enter the maximum amount of fuel consumed in one year by the emission source..
 HOURLY – Enter the maximum amount of fuel consumed in one hour.
 UNITS – Enter the units of the listed fuel (e.g., gallons, cubic feet, pounds, etc.).
2.6 FUEL STORAGE TANK SIZE – If dryers, heaters, or ovens are used and one or more are fired with liquid fuels,
specify the fuel tank size(s) in gallons.
3.0 COMMENTS
This section should be used to describe any entry requiring additional explanation.
Note: Emissions from the coating operations should be calculated and submitted using form D1-6H.
Mecklenburg County Air Quality – Application
B4-6H Form Instruction, 11/2010
SECTION B
B4-6H
EMISSION SOURCES - MISCELLANEOUS SURFACE COATING/AUTOBODY REFINISHING
1.0 EMISSIONS SOURCE
1.1
Type of
Source:
Spray Booth
Prep Station
Grit/Sand Blaster
Solvent Recycler
Gun Cleaner
Fuel Burning Heater/ Dryer/Oven
Paint Stripper
Stationary or Portable Engine/Generator
Other (Describe):
1.2 If a spray booth or prep station, is the source design compliant with the requirements of 40 CFR 63 subpart
HHHHHH?
Yes
1.3 Emission Source Description:
1.4 Emission Source ID No.:
1.5 Manufacturer:
1.6 Model No.:
1.7 Maximum No. of Units Processed/week:
1.8 Method of Spray:
Airless
ES-
Maximum Annual Throughput-Units/year:
HVLP
1.9 Number of Guns Per Station/Location:
1.10 Exhaust Control:
No
None
Electrostatic
Transfer Efficiency:
Dry Filter
Other Equivalent (Describe in
Comments)
Air-assisted Airless
Particulate Capture Efficiency:
Water Wash
Baffles
Other (Describe in comments)
2.0 FUEL USAGE
2.1 Total Maximum Firing Rate (mBtu/Hr):
2.3 Fuel Used:
2.2 Method of
Heating:
2.4 Actual Fuel Usage
Annually (Unit/yr)
Hourly (Unit/yr)
Direct Fired
Units
Electric
Annually (Unit/yr)
Steam
Other:
2.5 Maximum Fuel Usage
Hourly (Unit/hr)
Unit
2.6 Storage Tank Size (gallons):
3.0 COMMENTS
Attach Additional Sheets As Necessary
Mecklenburg County Air Quality – Application
B4 -6HForm, 11/2010
SECTION B
B4-6H
EMISSION SOURCES - MISCELLANEOUS SURFACE COATING/AUTOBODY REFINISHING
1.0 EMISSIONS SOURCE
1.1
Type of
Source:
Spray Booth
Prep Station
Grit/Sand Blaster
Solvent Recycler
Gun Cleaner
Fuel Burning Heater/ Dryer/Oven
Paint Stripper
Stationary or Portable Engine/Generator
Other (Describe):
1.2 If a spray booth or prep station, is the source design compliant with the requirements of 40 CFR 63 subpart
HHHHHH?
Yes
1.3 Emission Source Description:
1.4 Emission Source ID No.:
1.5 Manufacturer:
1.6 Model No.:
1.7 Maximum No. of Units Processed/week:
1.8 Method of Spray:
Airless
ES-
Maximum Annual Throughput-Units/year:
HVLP
1.9 Number of Guns Per Station/Location:
1.10 Exhaust Control:
No
None
Electrostatic
Transfer Efficiency:
Dry Filter
Other Equivalent (Describe in
Comments)
Air-assisted Airless
Particulate Capture Efficiency:
Water Wash
Baffles
Other (Describe in comments)
2.0 FUEL USAGE
2.1 Total Maximum Firing Rate (mBtu/Hr):
2.3 Fuel Used:
2.2 Method of
Heating:
2.4 Actual Fuel Usage
Annually (Unit/yr)
Hourly (Unit/yr)
Direct Fired
Units
Electric
Annually (Unit/yr)
Steam
Other:
2.5 Maximum Fuel Usage
Hourly (Unit/hr)
Unit
2.6 Storage Tank Size (gallons):
3.0 COMMENTS
Attach Additional Sheets As Necessary
Mecklenburg County Air Quality – Application
B4 -6HForm, 11/2010