GMACS HCl Calibration Standards
GMACS (Gas Manufacturer’s Alternative Certified Standards) solutions from Air Liquide fill
the regulatory void caused by the absence of EPA Protocol gases for HCl monitoring
A New
EPA-Approved
Class of
Calibration
Standards for
CEMS Installations
Air Liquide America Specialty Gases LLC
GMACS (Gas Manufacturer’s Alternative Certified Standards) solutions from Air Liquide fill the
regulatory void caused by the absence of EPA Protocol gases for hydrogen chloride monitoring,
providing accurate calibration standards for CEMS commissioning and QA—available now to meet
impending PC MACT compliance date (September 2016).
Introducing a New EPA-Approved Class
of Calibration Standards for CEMS Installations
Identifying a growing need for calibration standards in order to comply with
pending EPA regulations governing the monitoring of hydrogen chloride, Air
Liquide petitioned the EPA to approve a new class of calibration gases named
GMACS by the EPA. Acknowledging “the critical need for HCl calibration
standards that are not available due to the absence of national or international
reference materials to which protocols must be analytically and statistically
traceable,” the EPA approved the use of HCl GMACS products to calibrate
HCl analyzers*.
Benefits and Features
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Scott™ brand GMACS are especially effective when used in conjunction with
our new proprietary gas delivery panel complemented by our nitrogen purge
and purification panel. Both panels were developed specifically for use with HCl
gas mixtures.
GMACS are engineered calibration gases for stationary sources that are subject
to compliance under the following EPA regulations:
40 CFR Part 63 Subpart LLL (Portland Cement MACT)
40 CFR Part 63 Subpart UUUUU (Utility MACT)
40 CFR Part 63 Subpart DDDDD
40 CFR Part 60 Subparts CCCC and DDDD
* The complete EPA OAQPS approval letter may be viewed on our website
at https://industry.airliquide.us/gmacs.
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RAVSTAT™ blending assures
G
accurate NIST-traceable HCl addition
Confirming analysis shows full
recovery/no loss of HCl
EPA-approved statistics calculate
product uncertainties at ±4%
Dual-certification interlocking blend
and analysis concentrations for
added calibration accuracy
Exclusive ACULIFE™ cylinder inerting
treatments ensure long-term
stability of cylinder contents
Exclusive delivery system ensures
moisture-free delivery and rapid
mixture stabilization times,
ensuring significantly reduced gas
consumption
Specially treated
cylinder valves protect
against corrosion
GMACS Certification Scheme
For primary calibration of CEMS HCl monitors at stationary sources.
Raw Materials
N2 (UHP)
HCI (ESG)
Purity
99.9999%
99.9996%
Mass Uncertainty
< 0.0001%
< 0.0004%
N2
HCl
HIGH-PURITY
SUPPLY
ELECTRONIC
PURITY
Mixtures Certified by
GRAVSTAT™
Blending
Classical
Analysis
Instrumental
Analysis
Interlock
Uncertainty
Intermediate Blending Standards
Certified Value
Uncertainty Range
Reference Standard
HCI
Gravimetric
BLENDING
STANDARD
0.1–0.6%
NIST Weights
Gas Manufacturer's Primary Standards (GMPS)
Certified Value
Gravimetric
Classical
0.1–0.6%
1.0–2.5%
Reference Standard
NIST Weights
SPEX Solns
Certified Value
Gravimetric
Instrumental
0.1–0.6%
1.2–3.0%
NIST Weights
GMPS Stds
Uncertainty Range
GMPS
REFERENCE
STANDARD
1.0–2.5%
Gas Manufacturer's Alternative Certified Standards (GMACS)
Uncertainty Range
Reference Standard
GMACS
1.5–4.0%
PRODUCT
CYLINDER
Gas Specifications
Scott™ brand GMACS are used for the primary calibration of CEMS HCl monitors at stationary sources. Certified daily
calibration standards are for regular QA and periodic RATA testing of HCl CEMS.
Dual-Certified Standards
GMACS
Single-Certified Standards
Certified Daily
Cylinder
Size
Blend
Tolerance
Analytical
Accuracy
Blend
Tolerance
Analytical
Accuracy
CGA
Shelf
Life
1 ppm – 1% HCl
30AL
47AL
±10%
±4%
±10%
±5%
330
1 year
1 ppm – 1% HCl
with SF6 or N2O Tracer*
30AL
47AL
±10%
±4%
±10%
±5%
330
1 year
Available Concentrations
in balance Nitrogen
* Please specify trace concentration.
EPA Protocols and Other Gases
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Scott brand EPA Protocols are the recognized standard for calibration excellence
and feature dual-certification and NIST-traceability. They are available for
measuring NO, NO2, SO2, C3H8 and other applications with a shelf life that varies
by product. Spike gas for CEMS validation (standard additions) tests is available
as well as other products for purge and zero applications.
Gas Handling Equipment
Turnkey HCl delivery solutions assure safe and accurate delivery of gases
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Specially treated components
and 3-station panels available with bypass flow (Fig 2)
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HCl-specific low internal volume regulator
Exclusive valve purge/clean procedure
Other available equipment
n N purge and purification panel (Fig 1)
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n High-purity plated and stainless steel pressure regulators
n Specially treated regulators and purge assemblies
n Safety equipment and gas detectors
n Cylinder storage and handling equipment
n i-SEE™ on-site safety and operational best practice surveys
Air Liquide America Specialty Gases LLC
9811 Katy Freeway Suite 100
Houston TX 77024
World leader in gases, technologies and services for Industry and Health, Air Liquide is present in 80 countries with close
to 50,000 employees and serves more than 2 million customers and patients.
NOTE: This brochure is intended for general information purposes only and is not intended as a representation or warranty
of any kind, or as a statement of any terms or condition of sale. The information herein is believed to be correct, but is not
warranted for correctness or completeness or for applicability to any particular customer or situation.
ACULIFE, GRAVSTAT, i-SEE and Scott are trademarks of Air Liquide Group.
©2016 Air Liquide America Specialty Gases LLC
Phone: 800.217.2688
Fax: 215.766.2476
Email: [email protected]
industry.airliquide.us
All rights reserved 05/2016-MSD-500 1174