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GMW14872 -
Accelerated Corrosion Test(General Motors)
This is an accelerated laboratory
corrosion test method that can be u1sed to determine the corrosion resistance of automotive assemblies andponents. It is said to be
effective
for evaluating a variety of corrosion mechanisms including general, galvanic, crevice etc. This test is cyclic in nature, i.e.; test
specimens are exposed to changing climates over time.
Test specimens are placed in an
enclosed chamber and exposed to a changing climate that generallyprises of the following 3 part repeating cycle (variations to this
cycle
are permitted depending on the type of component under test – refer to the full test standard for further guidance). 8.0 hours
exposure to an ambient climate of 40 to 50%RH at +25C, during which salt solution is sprayed directly on to the test samples 4 times,
for long enough to thoroughly wet them, and at intervals sufficient to allow the samples to dry between each spray.
This is followed by 8.0 hours exposure
to a water fog humidity climate of 100%RH at +49C. This is followed by 8.0 hours of air drying in a climate of <30%RH at +60C. The number
of cycle repeats and therefore the test duration is variable.
This test is also referred to as a
Cyclic Corrosion Test, often abbreviated to CCT.
For further information on General
Motors standards visit –
www.glo.bal.ihs.com
 General
Motors Test Plate Holder
- ACC116/6
This accessory comprises of a kit of 10
specially designed Polycarbonate test plate holders and nylon fixings, as pictured, for mounting General Motors test plates in accordance
with the requirements of GMW14872 - in an existing Ascott slotted sample rack, ref ACC16.
Notes:
The slotted sample rack itself is
not included, but may be supplied separately, at extra cost, if required.
The General Motors specification
test plates are also not included, but can also be supplied separately if required – price on application
Industries and
Applications
Below are some applications and
industry sectors where chambers have been sold and used. Please send me your comments or feedback as the more information
we can share the better for all of us to understand more about the whole corrosion test industry and the opportunities these
offer.
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Application 1 – JSW Steel is India’s leading integrated
steel producer with a capacity of 14.3 MTPA. The Group is also leading from the front in every sector that it operates in. By maintaining
exemplary operational efficiencies, JSW Energy has grown ten-fold in just three years while JSW Cement creates the building
blocks of India with its environment friendly product. JSW Infrastructure is contributing to the nation’s development by providing
world class services to clients through state-of-the-art ports, terminals, shipyards and other facilities.
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Industry Sector – Steel Production
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Website -
www.jsw.in
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Application 2 – NanoMech was founded in 2002 and today
the company has given the world breakthrough nano-innovations in machining and manufacturing, lubrication and energy, adaptive chemistries
for advanced textile coatings, indestructible metal surface coatings, biomedical implant coatings and strategic military
applications.
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Industry Sector
– Lubricant Manufacturer
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Website –
www.nanomech.com
SGS is the world’s leading
inspection, verification, testing and certification company. We are recognized as the global benchmark for quality and
integrity. With more than 80,000 employees, we operate a network of more than 1,650 offices and laboratories around the
world.
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Inspection: our comprehensive range of world-leading
inspection and verification services, such as checking the condition and weight of traded goods at trans-shipment,
help you to control quantity and quality, and meet all relevant regulatory requirements across different regions and
markets
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Testing: our global network of testing facilities,
staffed by knowledgeable and experienced personnel, enable you to reduce risks, shorten time to market and test
the quality, safety and performance of your products against relevant health, safety and regulatory standards
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Certification: we enable you to demonstrate that your
products, processes, systems or services are compliant with either national or international standards and
regulations or customer defined standards, through certification
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Verification: we ensure that products and services
comply with global standards and local regulations. Combining global coverage with local knowledge, unrivalled
experience and expertise in virtually every industry, SGS covers the entire supply chain from raw materials to final
consumption.
Check to see if there is an SGS
Facility in your country as a potential customer for Ascott chambers -
www.sgs.com
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