"The book is very concise and provides examples of theory and application as well as examples of the formula worked through. It has proven to be invaluable ......"

"Great reference book that has all the calculations in one place. A must have for the serious safety engineer and industrial hygentist."

"This is an excellent industrial hygiene reference book. I used it to study for the Certified Industrial Hygiene exam, and passed the exam on my 1st attempt!"

New for 2017!
Third Edition
2017 ABIH equations and more
 Enduring quality reference and study tools.
Exceptional and unique holiday/Christmas gift

20% off during 2017 holiday season (before December 31, 2017)

Use coupon code HOLIDAY during ordering and 20% will be deducted from price of book (s/h is excluded from discount)

eBooks and Hard Cover books available here with discount

Hard Cover book also available at Amazon.com

CSP ASP RSP For professionals. Formulas/equations used daily.
Second Edition
Covers BCSP Blueprints and more


 Absolutely the best and most useful Reference/Study Guides available today. 

Certified IH

Registered OH

The third edition has been updated to at a minimum cover the ABIH required equations (as of 2017) but goes beyond that list to include many other helpful calculations to either assess exposure or design engineering controls. There have been many changes in the equations since the last offering, variable names have changed, there are metric unit only equations that must be recognized and some equations were deleted from the old list. This new third edition covers the rubrics listed below. Download a sample eBook/PDF to see the unique layout of this 2017 edition of one of a book that has been used as library references, class textbook, desktop reference and field handbook for the traveling professional. The book is especially useful for the certification candidate and is a "must have reference" for those studying for the various certification exams offered around the world.

  • Local Exhaust Ventilation
  • Dilution Ventilation
  • Lasers
  • Chemistry
  • Radiofrequency and other nonionizing radiation
  • Noise
  • Ionizing Radiation
  • Statistics
  • Heat Stress
  • Ergonomics
  • Aerosols
  • Fan Laws
  • Air Sampling
  • Statistics


Certified Safety Professional

This book is the result of the combined efforts of a number of experienced well-recognized professionals. The authors were part of the faculty for courses at the Harvard School of Public Health. It was clear through interaction with students and other professionals in the field that there is a need for a direct, straightforward approach to learning and using the myriad of calculations associated with occupational safety in the 21st century. The BSCP no longer provides an equation list. They provide required topic areas for the certification candidate to demonstrate their capabilities. The BCSP provides an equation with the examination question. This is particularly challenging to the candidate. They must be prepared for many different challenges. The topic areas covered by this book include:

  • Ventilation
  • Mechanics
  • Electricity
  • Hydraulics
  • Statistics
  • Engineering Economy
  • Noise
  • Radiation
  • Statistics
  • Heat Stress
  • Ergonomics
  • System Safety
  • Boolean Math
  • General Science


For the first time (2017) we are publishing our reference books in eBook/PDF format and printed books. The eBook/PDF format will run on essentially any device or operating system since Adobe supplies free readers for most platforms. Key word searches save time. Table of contents linked to the relevant page. Saves time and is available anywhere when you have device that reads PDFs.

Both the IH-OH book (3rd edition) and the Safety book (2nd edition) are now also available, for the first time in eBook/PDF format. Downloads of these electronic versions can only be obtained from this website by clicking on the "BUY" tab at the top of the screen. Payment can be made with most popular credit cards or through PayPal.