The American National Standard for High-Visibility Safety Apparel and Headwear (ANSI/ISEA 107-2010) is a standard established by American National Standards Institute, Inc. Construction, maintenance, utility, emergency responders, airport ramp personnel and other workers are routinely exposed to the hazards of low visibility while on the job. This standard provides guidelines for the selection and use of high-visibility safety apparel such as shirts, rainwear, outerwear, safety vests and headwear to improve worker visibility during the day, in low-light conditions and at night. Notable changes from the second edition (ANSI/ISEA 107-2004) include a new requirement for retroreflective material in the shoulder area; clarification of the definitions of waterproof, water resistant, and water repellant; and new labeling and test requirements for flame resistant garments. The appendices have been updated to include additional examples of garment designs and trim patterns such as split trim configurations.

This information, ANSI/ISEA 107-2010 Made Easy: A Quick Reference to High-Visibility Safety Apparel, summarizes the main provisions of the standard including minimum performance criteria and basic design requirements. You should obtain a copy of the standard and refer to it for more detailed information. And remember, there is more to designing a high-visibility safety garment than meeting the minimum performance specifications and design guidelines of the ANSI/ISEA 107-2010 standard. Garment designs should incorporate the full range of your needs for functionality, comfort, durability and image.

ANSI/ISEA 107-2010 specifies the following:
• Design
• Requirements for Background and Combined-Performance Retroreflective Materials
• Photometric and Physical Performance Requirements for Retroreflective Materials
• Care Labelling

Definitions
Retroreflective, combined-performance, and background materials must be certified to the specific performance requirements in the standard. High-visibility safety apparel manufacturers must make documentation available to verify that the finished garments also meet the requirements of the standard.
Background material: Colored fluorescent material intended to be highly conspicuous, but not intended to comply with the requirements of this standard for retroreflective material.
Retroreflective material: Material that reflects and returns a relatively high proportion of light in a direction close to the direction from which it came.
Combined-performance material: A retroreflective material that is also a fluorescent material. Combined-performance materials can be counted toward the minimum area requirements for background material specified in Table 1.
Compliance: Retroreflective, combined-performance and background materials are to be certified to the performance requirements in the standard. Manufacturers of the finished garment must make documentation available to verify that components used to make high-visibility garments meet the requirements of the standard.
Certify (background and retroreflective material): To obtain compliance certification documents based on testing from an independent, third party accredited laboratory to verify performance requirements as specified in the standard.
Certify (finished item): To provide documentation from either an independent third-party accredited laboratory or to self-certify through the use of the Apparel and Headwear Compliance Certificate. (Appendix D6)
Accredited laboratory: A laboratory having a certificate of accreditation meeting the requirements ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories (or other equivalent standard) for the collection and analysis of data within the parameters of this standard.

Design
The ANSI/ISEA 107-2010 standard provides design guidelines and specifies the photometric requirements, minimum amounts of component materials, colors, and placement to create garments and headwear for the purpose of enhancing the visibility of workers. Refer to Section 6 of the standard for more detailed information. The selection of components and classes of apparel should be made based upon what is appropriate for the hazard and with the safety of the worker in mind.
Component Colors
There are three different colors for background and combined-performance material from which to choose: fluorescent yellow-green, fluorescent orange-red and fluorescent red. Users should consider the work and natural environment to determine the most conspicuous color for daytime use. Is the environment urban or rural, heavy foliage or desert? Are work zone devices and equipment yellow or orange? Choose the fluorescent color that achieves the highest degree of worker contrast.

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