#CHROMIUM 6 UPDATE#
#CHROMIUM 6 FULL#

Ĭhromium is the 13 th most abundant element in the Earth’s crust.

Chromium has a distinct shine and forms various compounds in different colors that include green, purple, black, yellow, and orange. The name was given to this metal as it exists in diverse colors and was suggested by, Antoine Francois de Fourcroy (1755-1809) and René-Just Haüy (1743-1822). The name chromium has been derived from Greek word, chroma, which means color.

Later, chromium was discovered as a novel, and isolated metal by Louis-Nicolas Vauquelin in 1797. History and DiscoveryĬhromium was initially discovered in red crystalline mineral form, known Siberian red lead, by Johann Gottlob Lehmann (1766). It has a shiny surface that is resistant to corrosion and this quality makes its ideal for manufacturing and coating of wide range of material, including cars and bikes. When tested, Eneria will integrate this solution into the cleaning processes, depending of the results.Chromium is a transition metal that was discovered by Gottlob Lehmann in 1766. CATERPILLAR identified a product (10% citric acid, 10% Ascorbic acid and 80% distilled water) that transforms Cr-6 into a more stable and non-toxic Cr-3. This process can take from 1 to 3 days, depending on the engine series. The clean-up process shall be re-conducted as long as the test remains positive.

Collect, store and dispose the contaminated wastes.

Use Branch washing machine for removable parts cleaning,.

Clean the fixed parts with a dampened clean cloth,.

The HSE cleaning procedure of 26/11/19 includes:

If the test is positive, technical staff must keep the « Cr-6 specific » Personal Protective Equipment listed above, while cleaning the contaminated parts.

If the test is negative, the technical staff is no longer required to wear « Cr-6 specific » Personal Protective Equipment for the rest of the procedure,.

Test the presence of Cr-6 with the detection swab test Kit,.

Wear «Cr-6 specific» Personal Protective Equipment (full single use protection suit, eyes protection, mask and gloves),.

When ENERIA team carry out maintenance on exhaust manifolds, the following clean-up process is implemented:

#CHROMIUM 6 UPDATE#

We provide you with the Risk assessment to help you update your global HSE plan and with the Caterpillar Technical Information Bulletin that we ask you to integrate into your engine’s Operation and Maintenance Manual.

#CHROMIUM 6 FULL#

On the other hand, in case of operation on exhaust manifolds with the potential risk of contact with Cr-6, it is recommended to use the personal protection measures, (implemented at Eneria) such as full single-use protective suit, gloves, waterproof eyes protection and FFP2 or FFP3 respiratory protection (single-use mask). Therefore, no specific preventive measures are required during daily operations. Thus, the main identified hazard for operator is the physical contact with these parts and the Cr-6 deposit on them.Īpart from the direct operation on the exhaust manifolds, there is no risk for the health of the technical staff during the standard engine maintenance. This reaction is favored by high temperatures (exhaust circuits) in oxidizing environment.Įneria’s investigations has shown that these deposits are not volatile. Cr-6 was identified as yellow, solid and non-volatile deposit that can be observed on some exhaust manifolds and exhaust thermal insulations.Ĭr-6 is the result of the transformation of Cr-3 and Cr-4 contained in the alloy of stainless steel parts.

Chromium 6