GB/T 13855-1992 Specification for path transmission automatic measuring equipment

SJ 1889 GB/T 6587.1-1986 Environmental tests program for electronic measuring instruments GB/T 6587.2-1986 Temperature tests for electronic measuring instruments GB/T 6587.3-1986 Humidity tests for electronic measuring instruments GB/T 6587.4-1986 Vibration tests for electronic measuring instruments GB/T 6587.5-1986 Shock tests for electronic measuring instruments GB/T 6587.6-1986 Transportation tests for electronic measuring instruments GB/T 6587.7-1986 Basic safety tests for electronic measuring instruments GB/T 6587.8-1986 Line frequency and voltage tests for electronic measuring instruments GB/T 6593-1996 Quality inspection provisions for electronic measuring instruments GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB 3376-1982 Inband pulsing single frequency line signalling system for telephone automatic switching network GB/T 3377-1982 Multifrequency register signalling system for telephone automatic switching network GB/T 3971.3-1983 The test methods for the technical specifications of multi-frequency register signalling for telephone automatic switching network GB/T 4798.2-1996 Environmental conditions existing in the application of electric and electronic products—Transportation GB/T 4798.2-2008 Environmental conditions existing in the application of electric and electronic products—Part 2:Transportation GB/T 4798.2-2021 Classification of environmental conditions—Classification of groups of environmental parameters and their severities—Part 2:Transportation and handling GB/T 191-2025 Graphical symbols marking for handling and storage of packages