NB/T 11458-2023 Geophone for seismic exploration for coal mine

GB/T 2423.5-2019 Environmental testing—Part 2:Test methods—Test Ea and guidance:Shock GB/T 2423.10-2019 Environmental testing—Part 2:Tests methods—Test Fc:Vibration(sinusoidal) GB/T 3836.1-2021 Explosive atmospheres—Part 1:Equipment—General requirements GB/T 3836.4-2021 Explosive atmospheres—art 4:Equipment protection by intrinsic safety “i” GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB/T 10111-2008 Generation of random numbers and procedures applied to sampling inspection for product quality GB/T 24260-2020 Petroleum seismic geophone GB/T 24262-2009 Environmental tests and reliability for petroleum geophysical exploration instrument JJG 233-2008 Piezoelectric Accelerometer MT 210-1990 The basic test methods for electrical products used in coal mine communication, detection, and control GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 2423.1-2001 Environmental testing for electric and electronic products—Part 2:—Test methods Tests A:Cold GB/T 2423.1-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Tests A:Cold GB/T 2423.2-2001 Environmental testing for electric and electronic products—Part 2:Test methods-Tests B:Dry heat GB/T 2423.2-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Tests B:Dry heat GB/T 2423.4-1993 Basic environmental testing procedures for electric and electronic products—Test Db:Damp heat, cyclic GB/T 2423.4-2008 Environmental testing for electric and electronic products—Part 2:Test method—Test Db:Damp heat,cyclic(12 h+12 h cycle) AQ 1043-2007 Mining Product Safety Mark Identification GB/T 191-2025 Graphical symbols marking for handling and storage of packages