- Before/ISO standard
- After/ISO standard
- Before/DGMS standard
- Before OEM standard
- 120 dB (A)
- 130 dB (A)
- 140 dB (A)
- 115 dB (A)
- 90 dB (A)
- 85 dB (A)
Vibration studies of various mining machinery before their introduction in mining operation should be done as per ISO Standard.
Your go-to platform for competitive exams, job opportunities, and mining resources. Since 2019, we’ve been dedicated to providing quizzes, books, notes, and exam preparation materials to help you succeed in the mining industry.