{"id":320368,"date":"2024-10-19T22:09:03","date_gmt":"2024-10-19T22:09:03","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iso-4524-22000\/"},"modified":"2024-10-25T20:31:25","modified_gmt":"2024-10-25T20:31:25","slug":"bs-iso-4524-22000","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iso-4524-22000\/","title":{"rendered":"BS ISO 4524-2:2000"},"content":{"rendered":"<p>This part of ISO&nbsp;4524 provides procedures for conducting mixed flowing gas (MFG) environmental tests involving exposures to controlled quantities of corrosive gas mixtures.<\/p>\n<p>It describes the required equipment and the methods for gas, temperature and humidity control that enable tests to be conducted in a reproducible manner. Reproducibility is measured through the use of control coupons the corrosion films of which are evaluated by mass gain, coulometry or by various electron and X-ray beam analysis techniques. Reproducibility can also be measured by <i>in situ<\/i> corrosion rate monitors using electrical resistance or mass frequency change methods.<\/p>\n<p>MFG tests can be used to:<\/p>\n<ul>\n<li>\n<p>evaluate novel electrical contact metallization for susceptibility to degradation due to environmental exposure to the test corrosive gases;<\/p>\n<\/li>\n<li>\n<p>evaluate the shielding capability of connector housings that may act as a barrier to the ingress of corrosive gases;<\/p>\n<\/li>\n<li>\n<p>evaluate the susceptibility of other connector materials such as plastic housings to degradation from the test corrosive gases.<\/p>\n<p>MFG tests are not normally:<\/p>\n<\/li>\n<li>\n<p>used as porosity tests (for guidance on porosity testing, see ISO&nbsp;10308, <i>Metallic coatings\u2014 review of porosity tests);<\/i><\/p>\n<\/li>\n<li>\n<p>applicable where the failure mechanism is other than pollutant gas corrosion such as in tin-coated separable contacts.<\/p>\n<\/li>\n<\/ul>\n<p>MFG tests are not normally used as porosity tests or where the failure mechanism is other than pollutant gas corrosion.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Metallic coatings. Test methods for electrodeposited gold and gold alloy coatings &#8211; Mixed flowing gas (MFG) environmental tests<\/b><\/p>\n<table class=\"shortdes-table\" style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/bsi\/\"><b>BSI<\/b><\/a><\/td>\n<td>2000<\/td>\n<td>40<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":320374,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[442,2641],"product_tag":[],"class_list":{"0":"post-320368","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-25-220-40","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/320368","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/320374"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=320368"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=320368"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=320368"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}