標準號：BS ISO 9022-20-1997
中文標準名稱：光學和光學儀器.環境試驗方法.第20部分:含有硫化氫或二氧化硫的濕濕空氣
英文標準名稱：Optics and optical instruments - Environmental test methods - Humid atmosphere containing sulfur dioxide or hydrogen sulfide
標準類型：N30
發布日期：1997/8/15 12:00:00
實施日期：1997/8/15 12:00:00
中國標準分類號：N30
國際標準分類號：37.020
適用范圍：This part of ISO 9022 specifies methods for the testing of optical instruments and instruments containing optical components, under equivalent conditions, for their ability to resist sulfur dioxide (SO2) or hydrogen sulfide (H2S) in a humid atmosphere. The purpose of the test is to investigate to what extent optical, mechanical, chemical and electrical performance characteristics of the specimen are affected by sulfur dioxide or hydrogen sulfide. This part of ISO 9022 is not applicable to the testing of material and surface coatings for their corrosion resistance using high concentrations of sulfur dioxide, for which representative samples are generally used as specimens. The appropriate material standards apply to tests of this type.