SAFETY FORMULAS: YOUR QUICK REFERENCE GUIDE 🧮✅

 📐 SAFETY FORMULAS: YOUR QUICK REFERENCE GUIDE 🧮✅

 

Safety is not just about rules, it is also about numbers and measurements! Here are the essential formulas every Safety Officer and HSE professional should know.

 

 

 

📋 FORMULAS INCLUDED:

 

1️⃣ RISK ASSESSMENT

R = Likelihood × Severity

 

- Calculate if the risk is Low, Medium, or High.

 

2️⃣ ACCIDENT FREQUENCY RATE (AFR)

AFR = (Injuries × 1,000,000) ÷ Total Man-Hours

 

- Measures how often accidents happen.

 

3️⃣ LOST TIME INJURY FREQUENCY RATE (LTIFR)

LTIFR = (Lost Days × 1,000,000) ÷ Total Man-Hours

 

- Tracks severity of injuries causing absence.

 

4️⃣ SEVERITY RATE (SRR)

SRR = (Workdays Lost × 1,000,000) ÷ Total Man-Hours

 

- Shows how serious the accidents are.

 

5️⃣ INCIDENT RATE (IR)

IR = (Incidents × 200,000) ÷ Total Hours

 

- Standard ratio for reporting.

 

6️⃣ FIRE LOAD 🔥

Fire Load = Total Heat Energy (MJ) ÷ Floor Area

 

- Determines how much fire risk is in a room.

 

7️⃣ NOISE LEVEL CALCULATION 🎧

LAeq Formula for average noise exposure.

 

8️⃣ VENTILATION RATE 💨

Q = Volume × Air Changes per Hour

 

- Check if the area has enough fresh air.

 

 

 

"WORK SMART, STAY SAFE! KNOW YOUR NUMBERS, MANAGE YOUR RISKS." 🧠🛡️

 

👇 FOLLOW HSE NEXUS for more safety knowledge!

 

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