Occupational Safety and Health Administration (OSHA) expanded its scope of recognition for TÜV Rheinland of North America, Inc. as a Nationally Recognized Testing Laboratory (NRTL).

Effective June 5, the expanded scope of recognition includes two additional recognized testing standards and signifies that TÜV Rheinland meets the requirements specified in 29 CFR 1910.7.

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OSHA recognition of a NRTL is an acknowledgment the organization can perform independent safety testing and certification of the specific products covered within the scope of recognition As a result of recognition, employers may use products properly approved by the NRTL to meet OSHA accepted standards.

OSHA staff examined TÜV’s expansion application, conducted on-site assessments, and examined other pertinent information and found TÜV meets the requirements for expansion of recognition, including the two additional test standards.

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The test standards for TÜV’s NRTL scope of recognition include:
• NFPA 496 for Purged and Pressurized Enclosures for Electrical Equipment
• UL 698A for Standard for Industrial Control Panels Relating to Hazardous (Classified) Locations

The addition of these standards represents an important change for TÜV.

There are manufacturers who build and sell equipment for Hazardous Locations (Classified Locations per the US National Electrical Code, NFPA 70), and only a few NRTL Testing Laboratories can offer this important certification for their products, including TÜV. Certification for these two new standards is essential as these standards are used to evaluate electrical equipment safety in explosive atmospheres, including flammable liquids, flammable gases, and explosive dust.

TÜV has a Listed Panel Shop Program, allowing licensed manufacturers to build a wide variety of configurations, as long as the construction meets the requirements of the standards.

UL 698A will allow Panel Builders to manufacture panels with intrinsically safe circuitry, thereby allowing certain electrical components to be used in Classified Locations without being specifically certified for these locations.

NFPA 496 allows Panel Builders to employ purge and pressurize technology so equipment can be directly located in a Classified Location without presenting a hazard.

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