2010 OSHA Hexavalent Chromium Standard
Starting May 31, 2010 the new OSHA standard (OSHA 1910.134) on Hexavalent Chromium will be in full force. This new regulation will affect everyone that is currently involved in applications that utilize Hexavalent Chromium (CR+6). The new standard requires all employers to have engineering controls in place for employee protection. Regardless if you are a shop of one, or one hundred thousand you need to have these safety controls in place to prevent, and reduce employee exposure to Hexavalent Chromium.
What is Hexavalent Chromium?
Hexavalent Chromium is a metallic form of the element chromium. This is a naturally occurring element that can be found in various objects ranging from rocks, soils, volcanic dust, gases, and plants. Hexavalent Chromium is a known human carcinogen via inhalation, and is utilized in various processes.
What Applications utilizes Hexavalent Chromium?
There are vast set of industrial applications that utilize Hexavalent Chromium. Some of the most common applications include: welding stainless steel, leather processing, arc welding, electroplating, textile dying, painting, grinding stainless steel, chrome finishing, and wood preservation.
What is the new Standard?
There are three standards that are applicable: General Industry 29 CFR 1910.1026, Shipyards 29 CFR 1915.1026, and Construction 29 CFR 1926.1126. All three of these are very similar with the exception of General Industry which has some additional housekeeping and regulated area guidelines.
The new standard states that the exposure limit (PEL) is 5 micrograms per cubic meter (μg/m3) on an 8-hour time-weighted average. The pervious exposure limit was 52 μg/m3 on an 8-hour time-weighted average.
What happens if I ignore the standard?
This is a Federal standard and should not be ignored. In addition to exposing employees to a known carcinogen, OSHA can fine employers that do not comply with the regulation.
How do I know if I exceed the regulation?
If you are not sure if you exceed the exposure limit you need to perform an exposure determination. The most popular method is performing monitored samples in exposed areas. Typically, this is done utilizing sampling pumps that have particulate filters. The results are analyzed by a certified laboratory to determine toxicity levels, and employee exposure. It is recommended to utilize a certified industrial hygienist to setup the testing, and aid with any engineering controls that may be necessary to control a problem if present.
What Safety Equipment will I need to protect my employees?
This will be determined by the type of engineering controls that are necessary to protect your employees, concentration of Hexavalent Chromium, and based on the applications being performed. Typical safety equipment includes fume extractors, respirators, safety clothing, and goggles. Depending on the exposure, some employers may want to have “secure” areas where employees can change and have access to a clean air supply prior to exiting the facility.
If you are concerned about the new standard, or believe that your company may be exposing workers to Hexavalent Chromium please contact a certified industrial hygienist, or start dialog with your safety personnel. This issue should not be taken lightly, and OSHA guidelines should be followed. Employee safety is very important! For more information on safety guidance or specific standards read the OSHA guidelines on compliance OSHA Small Entity Compliance Guide for the Hexavalent Chromium Standards, page 9, OSHA 3320-10N.
