GB/T 4798.9-2012
Classification of environmental conditions.Classification of groups of environmental parameters and their severities.Microclimates inside products (English Version)
- Standard No.
- GB/T 4798.9-2012
- Language
- Chinese, Available in English version
- Release Date
- 2012
- Published By
- General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
- Latest
- GB/T 4798.9-2012
- Replace
- GB/T 4798.9-1997
- Scope
- This part of GB/T 4798 specifies the various microscopic conditions that may be encountered by internal components (basic parts, components and built-in equipment) when the product is used under the climatic conditions of IEC 60721-3-3 or IEC 60721-3-4. Class of weather conditions. The characteristic parameters of the microclimate are high air temperature and high relative air humidity. Some other climate level parameters such as low temperature may also have additional effects on components, but are not considered in this section. Considering the representative extreme high temperature, a limited number of microclimate grades are stipulated. Users of this standard should select the lowest grade that meets the intended use.
GB/T 4798.9-2012 Referenced Document
- IEC 60721-1:1990 Classification of environmental conditions; part 1: environmental parameters and their severities
- IEC 60721-3-0 Classification of environmental conditions - Part 3-0: Classification of groups of environmental parameters and their severities - Introduction*， 2020-05-07 Update
- IEC 60721-3-3 Classification of environmental conditions - Part 2-4: Environmental conditions appearing in nature - Solar radiation and temperature*， 2019-05-22 Update
- IEC 60721-3-4 Corrigendum 1 - Classification of environmental conditions - Part 3-4: Classification of groups of environmental parameters and their severities - Stationary use at non-weatherprotected locations*， 2023-07-24 Update
GB/T 4798.9-2012 history
- 2012 GB/T 4798.9-2012 Classification of environmental conditions.Classification of groups of environmental parameters and their severities.Microclimates inside products
- 1997 GB/T 4798.9-1997 Environmental conditions existing in application of electric and electronic products--Microclimates inside products
GB/T 4798.9-2012 -All Parts
GB/T 4798.1-2019 Classification of environmental conditions—Classification of groups of environmental parameters and their severities Part1:—Storage
GB/T 4798.10-2006 Environmental conditions existing in the application of electric and electronic products Guidance
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 4798.3-2023 Classification of environmental conditions—Classification of groups of environmental parameters and their severities—Part 3: Stationary use at weatherprotected locations
GB/T 4798.4-2023 Classification of environmental conditions—Classification of groups of environmental parameters and their severities—Part 4: Stationary use at non-weatherprotected locations
GB/T 4798.5-2007 Environmental conditions existing in the application of electric and electronic products.Section 5: Ground vehicle installations
GB/T 4798.6-2012 Classification of environmental conditions.Classification of groups of environmental parameters and their severities.Ship environment
GB/T 4798.7-2007 Environmental conditions existing in the application of electric and electronic products.Part 7: Portable and non-stationary use
GB/T 4798.9-2012 Classification of environmental conditions.Classification of groups of environmental parameters and their severities.Microclimates inside products