Page 59 - OHS, July/August 2020

ISEA Z358.1—2014, the eyewash flow pattern must cover the area between the interior and exterior lines of an eyewash gauge at some point less than 8 inches above the outlet of the eyewash. If the eye- wash flow is too low, it may be less than effective at rinsing out the contaminants in the victim’s eyes. If the flow is too high, it could be considered injurious poten- tially causing further harm to the victim. This is an important consideration when considering the quality of the equipment you are installing and an important test to ensure compliance.
Also, pay close attention to the design of the spray nozzles. In particular, eye/face washes which must use significantly more water due to the larger spray pattern treat- ing the area around the eyes and mouth as well. This should drive the use of a diffused design to cushion the flow as much as pos- sible, ensuring a comfortable but effective experience for the victim.
Flow Height, Spray Pressure and An- gle of Approach. There are many different eyewash and eye/face wash products on the market with various designs, operating features and price points. Consider your alternatives carefully. Look for features like effective dust covers, designed so that they don’t obstruct the drain when in use. Two often overlooked features are a pressure control valve and flow compensating device. Consider the level of victim comfort dur- ing use and the likelihood of their using the equipment for a full 15-minute cycle.
Combination Showers and Eyewash- es. If one has specified equipment with the best flow patterns and coverage, another very important feature of combination shower/eyewashes and shower/eye-face washes are flow controls. Flow controls maintain a stable supply of flushing fluid during simultaneous use of the shower and eye or eye/face wash.
As shown, there are differences in prod- ucts that make some better for specific ap- plications than others. And, as always, bud- get plays an important part in the selection. In the end, specifying becomes a balancing act—balancing features and capabilities against cost. The best way to deal with a balancing act is to know all the facts.
Justin Dunn is the Product Trainer/Sales Specialist and Resident ANSI/ISEA Z358.1 Expert at Haws Corporation.
www.ohsonline.com
Haws® Portable Emergency Eyewash Units
Cost-effective and practical solutions, ideal for locations with basic eyewash needs without access to potable water. Ideal for field medical labs, decontamination sites
Model 7501 • Guaranteed to Ship in 1-3 Business Days
and temporary treatment facilities.
CSA certified to meet the ANSI/ISEA Z358.1-2014 Standard.
Model 7603
www.hawsco.com/portableeyewash • 1.888.640.4297
Circle 13 on card.
HAWS • OH&S • 4-3/8” x 9-3/4” • 4 color • Run Date: May 2020