Summary of Hood Airflow Equations. From: Industrial Ventilation: A Manual of Recommended Practice for Design, 31st Edition © ACGIH 2023. To purchase the publication: Store - Industrial Ventilation: A Manual of Recommended Practice for Design, 31st Edition - ACGIH Portal.

Thank you for using the AIHA Industrial Hygiene Calculator app! Credits: This app was developed using many of the calculations found on the Board for Global EHS Credentialing® CIH Equation Sheets and the ACGIH© TLVs® and BEIs® and Industrial Ventilation: A Manual of Recommended Practice for Design.

The BGC Equation Sheets will be accessible by clicking the Equation Sheet button on the exam screen, which will be explained during the pre-test instructions. You must bring these three items: Your Authorization to Test (ATT) letter from Pearson.

Choose the right equation for the right IH measurement. Decipher between common units of length, temperature, area, volume, weight, and time. Enhance technical knowledge which will lead to CIH certification.

Learn the purpose and how to calculate the ventilation equations shown on the CIH exam equation sheet. Dr. Daniel Farcas, CIH, CSP, CHMM, visually explains the use of the ventilation equations found in his book “CIH EXAM Equations simply explained and with examples.”

An easy-to-understand text to help you understand the fundamental equations used in the CIH ® exam formulas. Dr. Daniel Farcas, CIH, CSP, CHMM wrote this book to help those preparing for the Certified Industrial Hygienist (CIH ®) exam.

CIH Equation Sheet 2025 - Free download as PDF File (.pdf), Text File (.txt) or read online for free.

Learn the purpose and how to calculate the ventilation equations shown on the CIH exam equation sheet. Dr. Daniel Farcas, CIH, CSP, CHMM, visually explains the use of the ventilation equations found in his book “CIH EXAM Equations simply explained and with examples.”

Choose the right equation for the right IH measurement. Decipher between common units of length, temperature, area, volume, weight, and time. Enhance technical knowledge which will lead to CIH certification. Utilize the critical formulas and their derivatives in industrial hygiene.