Food Protection Trends - December 2008 - 945
Industry Products scheme for hearing protectors can be effective without knowing how much attenuation individual workers actually attain. If a safety manager were to supply earplugs based on the assumption that all earplugs only achieve half of their published NRR in the field, then clearly two-thirds of the workers in this study would be seriously overprotected, since they are achieving much higher protection than 50%.” In this study, workers were tested during their standard work shifts. They were not pre-screened, and were tested with their own earplugs that they routinely wear on the job, with no modifications. The tested earplugs were from four different hearing protection device manufacturers, and workers received no training or coaching as part of the test. The workers were simply asked to insert the earplugs as they normally did on the job. No feedback or correction was offered if they fit the earplug incorrectly. According to Witt, the purpose of the study was to identify factors which contributed to good earplug fit, and hence, good attenuation in use. “A variety of personal as well as program factors were evaluated to determine which factors would correlate the best to a good earplug fit among these 100 workers,” he said. Factors evaluated included: gender, age, years working in a hazardous noise environment, ear canal size, familiarity with hearing protection devices, model of product used, amount of group training received, amount of individual training received and enforcement. “Of all these factors,” said Witt, “only one stood out as having a strong correlation: one-on-one training. That is, the more often a worker had received individual training in the proper use of hearing protectors, the higher the probability of a good fit.” The same could not be said for Group Training, according to Witt. “It appeared to make no difference at all whether a worker had attended zero, five or ten group training sessions in hearing protection, when measuring good attenuation in the field.” Enforcement, he added, was also a good predictor of good earplug performance, but only when it was coupled with one-on-one training. Another question posed by the study was whether workers who achieved low attenuation with one type of earplug would also attain low attenuation with all types of earplugs. “We tested this by inviting some workers to try a second pair of earplugs—different earplugs, perhaps a model they had never tried before,” said Witt. Workers who tried a second pair of earplugs often had major leaps in attenuation, bringing them closer to the published NRR. “Field testing of hearing protectors bridges the gap between the laboratory estimates of attenuation and the real-world attenuation achieved by workers as they normally wear the protectors,” Witt concluded. “This test confirmed the value of individual, one-on-one training, and the wisdom of offering workers a variety of suitable hearing protectors.” Sperian Hearing Protection, LLC 800.430.5490 San Diego, CA www.howardleight.com Sperian Hearing Protection, LLC Sperian Hearing Protection Field Attenuation Study Shows Individual Training Key to Hearing Protector Effectiveness recent field attenuation study conducted by the Howard Leight Acoustical Laboratory on the performance of hearing protection devices showed that individual, one-on-one training was the most significant factor in predicting good earplug performance. The study, which was conducted on over 100 workers at eight different facilities, showed that fully one third of workers achieve attenuation higher than published Noise Reduction Ratings (NRR) for their earplugs, and that another third achieve attenuation within 5 dB of those ratings. Only the remaining third had attenuation that was more than 5 dB below published NRRs. “This reinforces the need for individual fit testing of earplugs, especially in light of the Environmental Protection Agency’s proposed labeling changes,” said Brad Witt, MA, CCC-A, director of hearing conservation for Sperian hearing protection, LLC, and a principal author of the study. “No generalized rating A Be sure to mention, “I read about it in Food Protection Trends”! The publishers do not warrant, either expressly or by implication, the factual accuracy of the products or descriptions herein, nor do they so warrant any views or opinions offered by the manufacturer of said articles and products. DECEMBER 2008 | FOOD PROTECTION TRENDS 945
http://www.howardleight.com
Food Protection Trends - December 2008
Table of Contents for the Digital Edition of Food Protection Trends - December 2008
Food Protection Trends - December 2008
Contents
Sustaining Members
Perspectives from Your President
Commentary from the Executive Director
Observed Hand Washing Behaviors of Young Adults during Food Preparation
Adoption of Interventions to Improve Food Safety at Meat and Poultry Processing Plants in the United States
Call for Awards – IAFP 2009
Affiliate Officers
IAFP Committee, PDG, Task Force and Affiliate Council Mission Statements
New Members
What’s Happening in Food Safety
Industry Products
Coming Events
Index to Volume 28
Advertising Index
IAFP Financial Report
Journal of Food Protection Table of Contents
Audiovisual Library Order Form
Booklet Order Form
Membership Application
Food Protection Trends - December 2008 - Food Protection Trends - December 2008
Food Protection Trends - December 2008 - Cover2
Food Protection Trends - December 2008 - 897
Food Protection Trends - December 2008 - Contents
Food Protection Trends - December 2008 - 899
Food Protection Trends - December 2008 - 900
Food Protection Trends - December 2008 - 901
Food Protection Trends - December 2008 - 902
Food Protection Trends - December 2008 - 903
Food Protection Trends - December 2008 - 904
Food Protection Trends - December 2008 - Sustaining Members
Food Protection Trends - December 2008 - 906
Food Protection Trends - December 2008 - 907
Food Protection Trends - December 2008 - Perspectives from Your President
Food Protection Trends - December 2008 - 909
Food Protection Trends - December 2008 - Commentary from the Executive Director
Food Protection Trends - December 2008 - 911
Food Protection Trends - December 2008 - Observed Hand Washing Behaviors of Young Adults during Food Preparation
Food Protection Trends - December 2008 - 913
Food Protection Trends - December 2008 - 914
Food Protection Trends - December 2008 - 915
Food Protection Trends - December 2008 - 916
Food Protection Trends - December 2008 - Adoption of Interventions to Improve Food Safety at Meat and Poultry Processing Plants in the United States
Food Protection Trends - December 2008 - 918
Food Protection Trends - December 2008 - 919
Food Protection Trends - December 2008 - 920
Food Protection Trends - December 2008 - 921
Food Protection Trends - December 2008 - 922
Food Protection Trends - December 2008 - 923
Food Protection Trends - December 2008 - 924
Food Protection Trends - December 2008 - 925
Food Protection Trends - December 2008 - 926
Food Protection Trends - December 2008 - 927
Food Protection Trends - December 2008 - Call for Awards – IAFP 2009
Food Protection Trends - December 2008 - 929
Food Protection Trends - December 2008 - Affiliate Officers
Food Protection Trends - December 2008 - 931
Food Protection Trends - December 2008 - 932
Food Protection Trends - December 2008 - 933
Food Protection Trends - December 2008 - 934
Food Protection Trends - December 2008 - 935
Food Protection Trends - December 2008 - 936
Food Protection Trends - December 2008 - IAFP Committee, PDG, Task Force and Affiliate Council Mission Statements
Food Protection Trends - December 2008 - 938
Food Protection Trends - December 2008 - 939
Food Protection Trends - December 2008 - New Members
Food Protection Trends - December 2008 - 941
Food Protection Trends - December 2008 - What’s Happening in Food Safety
Food Protection Trends - December 2008 - 943
Food Protection Trends - December 2008 - 944
Food Protection Trends - December 2008 - Industry Products
Food Protection Trends - December 2008 - 946
Food Protection Trends - December 2008 - 947
Food Protection Trends - December 2008 - 948
Food Protection Trends - December 2008 - Coming Events
Food Protection Trends - December 2008 - Index to Volume 28
Food Protection Trends - December 2008 - 951
Food Protection Trends - December 2008 - 952
Food Protection Trends - December 2008 - 953
Food Protection Trends - December 2008 - 954
Food Protection Trends - December 2008 - 955
Food Protection Trends - December 2008 - IAFP Financial Report
Food Protection Trends - December 2008 - Journal of Food Protection Table of Contents
Food Protection Trends - December 2008 - Audiovisual Library Order Form
Food Protection Trends - December 2008 - Booklet Order Form
Food Protection Trends - December 2008 - Membership Application
Food Protection Trends - December 2008 - Cover3
Food Protection Trends - December 2008 - Cover4
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