1 Subject Content and Application Scope
This standard presents the characteristics and distribution of the dust, sand and salt mist appearing in nature, and their influence on the products as well as the factors influencing these environmental conditions.
This standard is applicable to the natural conditions to which products are liable to be exposed to dust, sand and salt mist during storage, transportation and use and their influence. The influence of these environmental factors is often closely associated with and at times enhanced by wind. The environmental factors and conditions related to wind are dealt with in "Environmental Conditions Appearing in Nature of Electric and Electronic Products-Precipitation and Wind" (GB/T 4797.5)
1 Subject Content and Application Scope 1
2 Normative References 1
3 Influence of Dust, Sand and Salt Mist on Products 1
4 Natural Dust and Sand Environments 2
5 Dust and Sand in Sheltered and Enclosed Locations 11
6 Salt Mist 12
7 Saline Dust Mist in Saline Areas 19
Appendix A (Informative) Dust and Sand Concentrations - Examples of High Concentrations 20
Appendix B (Informative) Dust and Sand Movement in the Air Flow 21
Appendix C (Informative) Carrying and Distribution of Salt Mist Particles from Sea toward Land 24
Additional Explanations 26
