Contact Us

Thomas E. Bernard
University of South Florida
College of Public Health
13201 Bruce B. Downs Blvd.
Tampa, FL 33612-3805

Physical Agents

Thomas E. Bernard

The following are analysis methods that have been developed for discussion, training and job analysis purposes. The workbooks have been prepared using Excel® . (In spite of my best efforts, there may be some format adjustments to provide frustration to users.) Most of the workbooks contain macros which must be enabled. It is up to you to trust the source. In addition, manual methods are supplied for a couple of the TLVs®.

The files are intended only for the individual who downloads them. They are copyrighted. I would appreciate an email to let me know about it.

Besides outright computational errors (no warranty), there may be some things strange to you. The workbooks represent my interpretation of the TLVs® and some additions and themes that I use in instructional activities. There are comments in many locations to facilitate use, but you are largely on your own.

These packages do not stand alone. The user is advised to read the TLV® Documentation and to take advantage of other support materials. Documentation is available from the ACGIH® (and members can download five per year at no charge).

Comments and Suggestions Are Welcome.


Noise - TLV® and PEL

A-Scale, Dose
Lp and Intensity Methods

Performance of hearing protectors based on vendor data using the NIOSH long method.
Noise v3.0
(4/21/09)

Hearing Protectors v1.0
(8/6/01)

Radiofrequency and Microwave Radiation

TLVs® for single frequency continuous exposures.

Updates for pulsed, multiple frequency, and wideband exposures planned.

RF/MW v3.0
(4/21/09)
Visible and Near Infrared Radiation

Three Methods
1. Meter with Filter
2. Meter without Filter but Knowledge of Relative Intensity
3. Spectral Power Distribution
VNIR v4.0
(in preparation)

Substantial changes have been made and a new package is not availalbe.
Ultraviolet Radiation

Three Methods
1. Meter with Filter
2. Meter without Filter but Knowledge of Relative Intensity
3. Spectral Power Distribution
UV Radiation v4.0
(4/20/09)

Hand-Arm Vibration*

TLV® and
Criterion Based Time Limits

HAV Analysis Package v5.0
(4/20/09)

Whole Body Vibration*

TLV® and
ISO Criterion Based Time Limits for acceleration and dose

WBV Analysis Package v4.0
(4/21/09)

Hand Activity Level*

Multiple Elements
Multiple Methods for HAL and NPF (some not in TLV®)
Stand alone rating of perceived excertion scale provided for reference

HAL v1.2
(4/20/00)

HAL Manual Method v1.5
(12/29/06)

RPE Scale
(12/29/06)

Lifting*

Manual Method for Manual Materials Handling
Lifting v1.1
(12/29/06)

Heat Stress

See the Occupational Heat Stress page for analysis methods based on WBGT Thresholds and Recovery Times

Clothing Factors
Estimation of WBGT

Estimation of Metabolic Rate (3 methods) *

Heat Stress Website


* These are also provided in the Ergonomics Analysis Tools.


Connect with us!