Meet Tracerco
Tracerco is a world leading technology
company providing unique and
specialized detection, diagnostic and
measurement solutions to customers
in petroleum and associated industries.
Award Winning
Over 3000 customers worldwide look to Tracerco for high
quality products and continuous innovation. Tracerco’s
business excellence is evidenced by the international
recognition its products and services have received for
export and innovation.
Tracerco and Johnson Matthey
Innovation
Tracerco is part of Johnson Matthey’s Process
Technologies Division. Formed almost 200 years ago,
Johnson Matthey is a speciality chemicals company
focused on catalysis, precious metals, fine chemicals and
process technology. Strong corporate backing from
Johnson Matthey has maintained investment levels to
keep us at the forefront of research and development
in process measurement diagnosis and detection
technologies.
Since its inception over 50 years ago, Tracerco has
focused on scientific innovation. Our scientists and
engineers have been at the forefront in the development
of many groundbreaking measurement and diagnostic
technologies that are now commonplace in process
industries the world over.
Local to Our Customers
An extensive network of overseas regional service centers
allow to us to be local to our customers, delivering our
products and services anywhere in the world.
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Measurement Instruments and Servicing
required in challenging process conditions, such as those
where separation difficulties and solid deposits may occur.
Tracerco’s Measurement Instruments and Servicing business
designs, manufactures and technically supports an extensive
range of measurement instrumentation. This includes
permanently installed instrumentation for real time process
control and a range of handheld monitors to detect radiation.
TRACERCO™ Instruments offers enhanced self-diagnostics
and unrivalled stability. The improved measurement and
process control offers major production benefits to the
operator.
As you would expect with a service-focused company, expert
commissioning, coupled with full after sales service support,
forms an essential part of our approach. Our portfolio of
instruments is renowned for high accuracy, high levels of
reliability and, as a result, extremely low maintenance costs.
We pride ourselves in solving our customers’ process control
problems and delivering the highest quality, customised
instrument solutions. With our highly experienced and
technically qualified team of service engineers, we can offer
local technical support to our customers no matter where
they are in the world.
Tracerco’s nucleonic instruments are always custom
designed to the needs of the specific application, are nonintrusive and easily fitted. Our instruments are perfectly
suited to installations where real-time measurements are
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TM
TRACERCO LevelFinderPlus
The first and only nucleonic instrument to provide a highly accurate and repeatable
level measurement in the presence of process deposits and pressure changes
Using Tracerco’s patented technology, LevelFinderPlus is a breakthrough in level measurement. Unique
processing algorithms provide unparalleled insight
into vessel operating conditions, monitoring what
occurs in the vapor space allowing the extent of
deposition to be identified.
High Accuracy and Performance
TRACERCO™ LevelFinderPlus provides operators with accurate
and repeatable level measurement even in the presence of deposit
build-up and/or vapor density fluctuations. The instrument is
unaffected by temperature and process conditions. It is able to
detect and monitor solid deposition.
Safety
Saving Time and Money
The advanced signal processing and improved system
stabilization enables source optimization. The external mounting
of the instrument means that process break-ins are kept to a
minimum.
TRACERCO™ LevelFinderPlus has no moving parts and does
not have contact with the process. It has the ability to deliver
consistent, accurate and repeatable level measurements,
regardless of process conditions, resulting in:
Robust
•
•
•
•
Reduced unplanned shutdowns.
Improved product quality.
Process optimization.
Operator confidence to increase production and maximize
throughput by running at the desired level, avoiding the negative
impact of ‘losing’ real liquid or slurry levels.
• Accurate measurements of deposit build-up.
• Redundancy of measurement.
Our robust and fault tolerant hardware is proven in use for high
operating temperatures and is qualified for use in subsea
applications to the IEC 13628 standard.
4
Benefits of the TRACERCOTM LevelFinderPlus
Typical Applications
• Wide range of operation temperature removing the need for
cooling system infrastructure.
TRACERCO™ LevelFinderPlus is designed for liquid level, interface,
density measurements and solids monitoring in upstream and
downstream vessels. TRACERCO™ LevelFinderPlus is suitable for
the most challenging oil, chemical and petrochemical industry
applications, including those with the potential for solids deposition
and extremes of temperature and pressure.
• Reduce the likelihood of exacerbating product deposition - with
better control around set point enabling less upsets and fewer
shutdowns for cleaning.
• Real time monitoring for build-up on the vessel walls.
• Simplified commissioning with auto calibration capabilities.
• Redundancy of measurement reduces unplanned shutdown.
• Easy to operate: Self-diagnostic function to assist system
maintenance.
• No need for additional pressure transmitters required to
compensate for pressure variations.
• No need for additional single point detectors required to
compensate for deposits as usually required on Cokers.
Specification Table
Performance
Accuracy
Application specific typically +/- 1% of range
Measuring Range
59 ft. (18m)
Measurement Principle
Gamma ray absorption
Components
Field detector and processing unit
Repeatability
+/- 0.5% typical
Electrical
Ex-Approvals
ATEX, CSA Ex ia IIC T4 Ga (-55°C≤Ta≤+85°C)
FM IS/I/1/ABCD/T4 Ta=70°C
Detector Temperature Rating
-40°F to 158°F (-40°C to 70°C)
Output
4-20mA HART®
Configuration and Visualisation Tool
Tracerco ToolBox
Mechanical
Detector Enclosure
316 SS, IP66
Source
ISO 2919 requirements
Container
In accordance with ISO 7205
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TM
TRACERCO DensityFinder
The TRACERCO™ DensityFinder is the most advanced technology currently available
for density measurements.
Tracerco™ DensityFinder’s wide operating
temperature range and unrivalled reliability
enables accurate real time monitoring in the most
challenging process environments. The system
provides critical process measurements such as:
High Accuracy and Performance
TRACERCO™ DensityFinder’s proprietary advanced signal
processing provides an accurate and repeatable density
measurement even in the most extreme operating
temperatures ranging from -40oF to +158oF (-40oC to
+70oC). The instrument has a self diagnostic critical
component early warning system and excellent short and
long term stability meaning the performance is unaffected
by component ageing.
• The density of single or multi-phase flows
• The build-up of solids on vessels or pipe walls
• The measurement of slurry concentrations in
vessels or transfer pipelines
Robust
Our robust and fault tolerant hardware is proven in use for
high operating temperatures and is qualified for use in the
most demanding applications to the IEC 13628 standard.
This low powered instrument increases the life of operating
components and helps to achieve mean time between
failures (MTBF) in excess of 20 years.
Saving Time and Money
Unlike conventional density measurement systems,
TRACERCO™ DensityFinder is equipped with the most
advanced signal processing capabilities providing
unparalleled stability and preemptive diagnostic
capabilities.
• Low maintenance reducing the need for spares.
• Mounted externally and small size allows for easy
retrofit and new build installation.
• High accuracy over the product life with advance
auto-correction feature.
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Typical Applications:
Benefits of the TRACERCO™ DensityFinder:
The TRACERCO™ DensityFinder is suitable for use in:
• High reliability.
• Mining;
• Accurate measurement.
• Petrochemical applications;
• Very low maintenance.
• Oil and gas applications;
• Self diagnostic and early warning system.
• Subsea processing;
• Wide operating temperature.
• Pulp and paper applications;
• Cement applications.
Specification Table
Parameter
Specification
Method of Detection
Scintillator
Zones
CSA / FM Class 1 Division 1 Groups A, B, C, D
Enclosure
Stainless Steel 316 XP IP66
Operating Temp
-40oF to +158oF (-40oC to +70oC)
Temp Stability
<± 0.5% (of count rate)
Output
HART®, 4-20mA and Modbus
Power Supply
12-36VDC
Wiring
2 wire comms, 2 wire supply
Pressure Correction
4-20mA input
Options
Option for operation at -67oF (-55oC) to +250oF (+120oC)
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TM
The Multi Award-Winning TRACERCO Profiler
The instrument of choice for real time critical process interface measurements
The TRACERCO ProfilerTM is the only instrument
specifically designed to measure the vertical
distribution of gas, foam, oil, emulsion, water and
solids in real time at high resolution.
Increase Production Throughput
The accuracy and reliability of the instrument results in minimal
process upsets providing operator confidence for real time
process optimization.
Reliability
Unlike conventional technology, this patented instrument is a
‘window’ into the vessel to enable the operator to improve
production throughput, reduce the number of unscheduled
shutdowns and achieve significant cost savings.
Non-contact technology and zero moving parts help to achieve
mean time between failures (MTBF) in excess of ten years
resulting in minimal operator intervention.
Our instrument is field-proven in hundreds of installations,
providing a separation solution for millions of barrels of oil per
day worldwide. The instrument is installed into some of the most
challenging and diverse applications, ranging from subsea oil
and gas processing to downstream refining.
Improve Asset Environmental Compliance
Accurate interface level measurements minimize oil in water
counts and therefore reduces environmental discharge.
Safety
The TRACERCO ProfilerTM enables accurate measurement and
control of the distribution of fluids such as:
Built to the highest safety and integrity standards with zero
detectable radiation outside of the vessel at any time. The
TRACERCO ProfilerTM is able to accommodate SIL2 trip and
redundant shutdown requirements while also providing
accurate level and interface
visualization.
• The interface between water and oil or oil and gas
• The quality of separation
• The extent of foam build-up
• The total liquid position
• The level of solids build-up
• The rag layer extent and height
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Benefits of The TRACERCO ProfilerTM
Typical Applications
The TRACERCO ProfilerTM is suitable for use in:
• Enables increased production throughput.
• Subsea separation and gas compression;
• Real time process optimization.
• FPSO and offshore separation;
• Reduces shutdowns and chemical additive costs.
• Downstream refining and desalting applications;
• Improves asset environmental compliance.
• FWKO and Treaters (SAGD, CSS, Solvent);
• Low maintenance and ease of installation.
• Oil Sands - Primary Separation Cells, Inclined Plate Separators,
Flotation Cells, Settlers and Thickeners.
Specification Table
Performance
Accuracy
Typically +/-1% of measurement range
Density Range
0-200 lbs/ft3 (0–3000 kg/m3)
Number of Measurement Points
Max 150
Update Interval
0.5 seconds to 15 seconds
Safety Trip for Shutdown Integrity
SIL2*
Electrical
Ex-Approvals
ATEX Ex ib IIB T4
FM / CSA Ex ia Groups C & D Class 1 Div 1
Probe Operating Temperature
-67°F to +270°F (-55°C to +132°C) (Higher and lower temperatures
available)
Power
Galvanic Isolators
Communications
Ethernet, Modbus® TCP/IP, Modbus® RTU,
Analogue Outputs
4-20mA per phase measurement
Mechanical
Vessel Nozzle Size
3 in (76mm) or greater (8 in (203mm) for high temperature applications)
Dip Pipe Casing
Titanium
Design Codes
ASME VIII, PD5500
Operating Pressure
In accordance with vessel design requirements
Maximum Length
Up to 59 ft. (18m)
*Option available upon request
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TM
TRACERCO TankGauge
Characterize real time process conditions in aggressive environments
This information provides the operator with the confidence
to increase fluid throughput, minimize the use of separation
enhancing chemicals and automatically control interface
levels.
Incorporating multi-award winning technology,
the TRACERCOTM TankGauge is designed to
measure the interface distribution of materials
contained within a multiphase separation or
storage vessel. With no moving or wetted parts,
the TRACERCOTM TankGauge provides a
maintenance free process control solution in
aggresive process environments.
Custom Designed
Each TRACERCOTM TankGauge is custom designed
to meet your requirements including measurement
ranges greater than 98 feet (30m). There are no valves,
bridles, stilling wells, heat tracing, vents or drains.
Improved Process Control
Information gained on the extent of phase dispersion
provides a clear indication of the quality of the interface
between different phases.
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Benefits of the TRACERCOTM TankGauge
Typical Applications
TRACERCOTM TankGauge is suitable for use in aggressive environments
such as alkylation units, this enhances safety through reduction in potential
leak points.
• HF alkylation units;
• Settling tanks;
• Wash tanks;
• Subsea oil storage caissons;
• Primary separation cells;
• Mining flotation cells.
• Characterize and control real time process conditions.
• No moving parts eliminating any contact with process materials.
• Reduce operating costs by optimizing the use of effect chemicals.
• Low maintenance and installation costs.
• Improve environmental compliance.
• Extremely robust and reliable measurement.
Specification Table
Process Measurement
Measurement Principle
Gamma ray absorption
Interface/Level Measurement
Phase elevation - up to 6 discrete phases
Performance
Interface/Level Accuracy
Typically +/- 2% of measurement range
Measuring Range
Up to 229 feet (70 m)
Density Range
0 - 200lbs/ft3 (0–3000 kg/m3) per point
Density Accuracy
+/- 0.6lbs/ft3 (+/- 10kg/m3) – subject to update/filter factors
Update Interval
1 second to 10 seconds (nominally 3 seconds)
Detector
Detector Type
PRI 150
Detector Operating Temperature
-40°F to +185°F (-40°C to +85°C)
Processor
Standard PLC
Allen Bradley ControlLogix
Output Options
Active 4-20mA, digital volt free alarms, Ethernet, Modbus TCP/IP, Modbus RTU
Configuration and Visualization Tool
Tracerco HMI
Mechanical
Detector Enclosure
316 SS, IP66
Dip Pipe
Material to suit application
Vessel Nozzle Size
Single 20 in (508mm) nozzle preferred
Source
Cs-137
Compliance
Ex-Approvals
Certified for use in Class 1 Div 1 and Class 1 Zone 0
ATEX 94/9/EC EMC 2004/108/EC
ATEX, CSA Ex ia IIC T4 Ga (-40°C<Ta<85°C) FM IS/I/1/ABCD/T4 Ta=85°C
Source
ISO 2919 requirements
Source Shielding
ISO7205 (1986) and ANSI N43.8 (2008) requirements
11
TM
TRACERCO PhaseFinderPlus
Increase production throughput, minimize unforeseen shutdowns and reduce
chemical additive costs
Utilizing advanced measurement technology,
the TRACERCOTM PhaseFinderPlus measures the
interfaces between phases within process
vessels. Visualization of your vessel contents
enables you to confidently increase production
throughput, minimize unforeseen shutdowns,
chemical additive cost and reduce the possibility
of costly carryover/carryunder occurring.
Reduce Operating Costs
The TRACERCOTM PhaseFinderPlus is used to obtain
information on the vertical height of each phase and
interface such as an emulsion layer. This enables you to
optimize the use chemical additives and therefore reduce
operating costs.
Minimize Downtime
The detection system is non intrusive with no moving
parts and no contact with the process. The detectors
are mounted on the outside of the vessel therefore
there are minimal maintenance requirements.
Increase Production Throughput
Our real time measurement system determines phase
dispersion within process vessels. Having this critical
information enables you to optimize your vessel’s
performance while reducing costs and increasing
throughput.
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Benefits of the TRACERCOTM PhaseFinderPlus
Typical Applications
• Increase production through the use of improved process control.
TRACERCOTM PhaseFinderPlus is suitable for use in:
• Reduce operating costs by optimizing the use of effect
chemicals.
• HPHT applications;
• Corrosive environments.
• Improve environmental compliance by reducing the possibilty
of carryover/carryunder.
• Utilizes award winning Tracerco ProfilerTM visualization user
interface.
Specification Table
Process Measurement
Principle
Interface/Level measurement
Performance
Interface/ Level Accuracy
Measuring Range
Density Range
Density Accuracy
Update Interval
Detector
Detector Type
Detector Operating Temperature
Processor
Standard PLC
Output Options
Configuration and Visualization Tool
Mechanical
Detector Enclosure
Dip Pipe (Source)
Vessel Nozzle
Sources
Compliance
Ex-Approvals
Source
Source Shielding
Gamma ray absorption
Phase elevation - up to 6 discrete phases
Typically +/- 50% of detector pitch – typically 6.7 inches (170.18 mm)
Modular - max range equal to 150 detectors
multiplied by detector pitch*
0 - 200lbs/ft3 (0 – 3000 kg/m3) per point
+/- 0.6lbs/ft3 (+/- 10kg/m3) subject to update/filter factors
1 to 10 seconds (nominally 3s)
Scintillator
-40°F to +158°F (-40°C to +70°C)
Allen Bradley CompactLogix
Active 4-20mA, digital volt free alarms, Ethernet,
Modbus TCP/IP, Modbus RTU
Tracerco HMI
316 SS, IP66
Material to suit application
Single 2 in (50.8mm) nozzle minimum
Cs-137
ATEX 94/9/EC EMC 2004/108/EC
ATEX - Zone 0 IIC T6 FM, CSA - Class 1 Div 1 Grps A,B,C,D T6
ISO 2919 requirements
ISO7205 (1986) and ANSI N43.8 (2008) requirements
13
TRACERCO™ SlugMonitor
Improve separation efficiency, optimize production rates and minimize
unforeseen shutdowns
The measurement and characterization of
process slugs is critical within the oil and gas
industry. Greater control and suppression of
vapor or liquid slugs means that production rates
are optimized, maintenance costs are reduced
and unforeseen shutdowns are minimized.
Real Time Slug Characterization
The TRACERCOTM SlugMonitor is the first non intrusive,
real time gamma transmission based slug characterization
instrument. Using advanced measurement technology
alongside sophisticated signal processing, Tracerco is
able to offer the most accurate and reliable instrument
capable of characterizing process slugs within pipelines.
The measurement and characterization of process slugs
enables the presence and frequency to be understood in
order that the process conditions can be changed to
reduce their magnitude and detrimental effect on the
oil and gas separation train.
Custom Designed
The TRACERCOTM SlugMonitor is a unique, custom
designed system to meet your measurement
requirements. Particularly suited to aggressive process
environments, the instrument is not susceptible to fouling
or heat damage. It can be easily retrofitted and is backed
up by our global service team whose engineers are highly
experienced within the oil and gas industry.
The TRACERCOTM SlugMonitor instrument
can determine:
•
•
•
•
•
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Slug velocity;
Slug size;
Slug volume;
Slug frequency;
Estimated time of arrival.
Benefits of the TRACERCO™ SlugMonitor
Typical Applications
• Certified for use in hazardous area zones 1 and 2.
TRACERCO™ SlugMonitor is suitable for use in:
• Oil and gas pipelines;
• Deepwater risers;
• Steam Assisted Gravity Drainage (SAGD).
• Real time analysis and historical trending data available.
• Aids separation efficiency.
• Wide operating temperature.
• Clamp on non intrusive solution.
Specification Table
Performance
Accuracy
Depends on system configuration. On a 4” pipe with a 10 second
response time +/- 0.004g/ml is typical.
Measuring Range
0 to 100%
Electrical
Communications
MODBUS RS485
Response Time
Fixed or Dynamic, 0.05 to 655.35 seconds
Operating Temperature
-40°F to +158°F (-40°C to +70°C)
Ex-Approvals
Flameproof enclosure certified Ex d IIC T6.
Suitable for Zone 1 operation.
Power Supply
12 or 24 volts DC (10 to 36 volts) less than 2.4 VA
Electromagnetic Compatibility
Tested to EN61326-1:1997 + A1:1998
Mechanical
Source
Normally Caesium – 137.
PLC
MODBUS/MODBUS TCP/IP Processor. Standard outputs available (4-20mA).
MODBUS/MODBUS TCP/IP in a wall mounted cabinet.
Size
13 x 5 in (328 x 122 mm) tubular stainless steel body with 7 in (170mm)
square mounting plate.
Detector Enclosure
To IP66
Weight
40 lbs (18kg)
Cable
4 core twisted pair depending on communications port configuration.
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Training, Maintenance and Support Services
A nucleonic instrumentation provider offering a full and comprehensive range of
in-house support services.
At Tracerco, we like to ensure that the customer
experience continues after the purchase of our
products. We offer full local support, training,
maintenance and optimization expertise for all of
our products including source licensing, importing
and storage (until required for commissioning).
Our service and support team includes a network of highly
experienced instrumentation engineers and radiation
protection practitioners. Their extensive practical
knowledge and understanding of some of the most
complex process problems the industry encounters
ensures fast and effective support. With our strategically
located offices worldwide, we can assist with source
delivery, storage, license regulations and commissioning.
Our instrument support services include:
Legislative Compliance
Leak test certification - routine leak tests carried out to
ensure source integrity.
System health checks – annual/bi-annual function testing
and inspection of your measurement system components
ensure continued operability and compliance.
Radiological critical examinations – documented
assessment following installation of equipment or following
changes made that may affect the system.
Source integrity assessments – assessment of
radioactive sources at or near to recommended working life.
Equipment integrity reports – a thorough inspection is
carried out on source containers, shutter mechanisms and
arming rods.
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Training, Maintenance and Support Services
Optimization
• Ensuring the equipment meets all of the required regulations
(e.g. labelling, dose rates, signage, locks).
Performance assessment – in addition to re-calibrations
and trip testing we can establish present day accuracy
of your system. Such information can ensure existing
equipment continues to meet requirements now and
in the future.
• Swab tests and certification.
• Upgrade to current state of the art detectors and software
with support.
Training
Validation services – this mobile, non-intrusive diagnostic
facility gives you ultimate confidence in determining the
position of level or interfaces within an application.
Training courses are designed to provide a comprehensive
understanding of our instrumentation systems to allow
efficient operation and maintenance as well as basic
radiation safety.
Field Services
Pre-commissioning services – include site surveys and
installation supervision of equipment by local Tracerco
personnel.
Comprehensive training courses are tailored to provide
delegates with the essential knowledge and understanding
that will enable them to operate and maintain your
measurement system. Training can be delivered at any
of our regional offices or at your premises.
Repair, refurbish, relocate – repair, refurbish or relocate
your existing Tracerco equipment and provide all of the
necessary documentation.
Training modules include:
Remove, recycle, replace – manage and remove, recycle
and replace sources.
• Radiation awareness, hazards and source container safety
• Nucleonic instruments theory
Benefits include:
• Level/trip and auxiliary equipment practical course
• Elimination of errors due to changes in the process/vessel
condition.
• Density/trip and auxiliary equipment practical course
• Maintenance of equipment due to wear and tear or
damage over time.
• Software configuration, instrument calibration and fault
finding diagnostics exercises
• Maximized life and performance from the measurement
system.
• Practical fault-finding using our training equipment
Contact us to discuss tailoring a maintenance and support
plan to meet your needs.
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Tracerco’s Business Units
Tracerco’s Operational Offices Across the World
A worldwide network of agents and service partners enable Tracerco to deliver its products and services to our
customers anywhere in the world, while still retaining the important aspect of local service.
Tracerco’s Operational North American Offices
North American Headquarters
Toll Free US & Canada 800 288 8970
4106 New West Dr.
Pasadena, TX 77507 USA
Tel 281 291 7769
Fax 281 291 7709
Toll Free 800 288 8970
Field Office Locations
4516 Baldwin Blvd.
Corpus Christi, TX 78408 USA
Tel 361 888 8233
Fax 361 888 8250
5750 Imhoff Dr., Suite F
Concord, CA 94520 USA
Tel 925 687 0900
Fax 925 687 0905
8181 GSRI Rd.
Baton Rouge, LA 70820 USA
Tel 225 761 0621
Fax 225 767 2637
7625 Rosecrans Ave., Unit 28
Paramount, CA 90723 USA
Tel 562 633 8800
Fax 562 633 8801
2698 S. Redwood Rd., Suite T
West Valley City, UT 84119 USA
Tel 801 478 0736
Fax 801 478 0737
31 Albe Dr., Suite 5
Newark, DE 19702 USA
Tel 302 454 1109
Fax 302 454 9470
Rua Victor Civita 66,
Ed.4 Grupo 501
Rio Office Park Barra da Tijuca
Rio de Janeiro - RJ - CEP:
22775-044 Brazil
Tel +55 21 3535 7600
3320 E. 84th Place, Suite A/B
Merrillville, IN 46410 USA
Tel 219 945 0400
Fax 219 945 0020
18
8908 60th Avenue NW
Edmonton, AB T6E 6A6
Canada
Tel 780 469 0055
Fax 780 413 0254
9-1173 Michener Rd.
Sarnia, ONT N7S 5G5
Canada
Tel 519 332 6160
Fax 519 332 1079
Suite 144,
132-250 Shawville Blvd.,SE
Calgary, AB T2Y 2Z7
Canada
Tel 403 931 6705
Cell 403 472 8455
The figure above represents data obtained from a Monte Carlo simulation.This mathematical
modelling technique uses random samples of parameters or inputs to explore the behavior of a
complex system or process. Tracerco uses this to predict the intensity and energy of radiation
transmitted through, or scattered within, a target material allowing us to refine existing products
and to investigate new specialist measurements.
For further details please contact:
4106 New West Drive
Pasadena, TX 77507
Tel: 281 291 7769 or 800 288 8970
Email: tracerco@tracerco.com
www.tracerco.com
TRACERCO is a d/b/a of Johnson Matthey Inc. TRACERCO, Johnson Matthey and the
Johnson Matthey logo are trademarks of the Johnson Matthey Group of companies.
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