{"id":167021,"date":"2026-10-29T21:28:17","date_gmt":"2026-10-29T18:28:17","guid":{"rendered":"https:\/\/onlinestandart.com\/standard\/ts-iso-7870-6-2\/"},"modified":"2026-10-30T03:16:51","modified_gmt":"2026-10-30T00:16:51","slug":"ts-iso-7870-6-2","status":"publish","type":"product","link":"https:\/\/onlinestandart.com\/en\/standard\/ts-iso-7870-6-2\/","title":{"rendered":"TS ISO 7870-6"},"content":{"rendered":"<p>Control charts &#8211; Part 6: EWMA control charts for the process mean<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This document covers EWMA control charts, originally proposed by Roberts (1959)[16], as a statistical process control technique to detect small shifts in the process mean. It makes possible the faster detection of small to moderate shifts in the process mean. In this chart, the process mean is evaluated in terms of exponentially weighted moving average of all previous observations or averages.<br \/>\nThe EWMA control chart\u2019s application is worthwhile in particular when<br \/>\n\u2014 production rate is slow,<br \/>\n\u2014 a minor or moderate shift in the process mean is vital to be detected,<br \/>\n\u2014 sampling and inspection procedure is complex and time consuming,<br \/>\n\u2014 testing is expensive, and<br \/>\n\u2014 it involves safety risks.<br \/>\nNOTE EWMA control charts are applicable for both variables and attributes data. The given examples illustrate both types (see 5.5, Annex A, Annex B and Annex C).<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"product_brand":[],"product_cat":[175],"product_tag":[],"class_list":["post-167021","product","type-product","status-publish","product_cat-tse","first","instock","purchasable","product-type-simple","entry","content-bg","loop-entry"],"taxonomy_info":{"product_cat":[{"value":175,"label":"TSE"}]},"featured_image_src_large":false,"author_info":[],"comment_info":"","_links":{"self":[{"href":"https:\/\/onlinestandart.com\/en\/wp-json\/wp\/v2\/product\/167021","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onlinestandart.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/onlinestandart.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:attachment":[{"href":"https:\/\/onlinestandart.com\/en\/wp-json\/wp\/v2\/media?parent=167021"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/onlinestandart.com\/en\/wp-json\/wp\/v2\/product_brand?post=167021"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/onlinestandart.com\/en\/wp-json\/wp\/v2\/product_cat?post=167021"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/onlinestandart.com\/en\/wp-json\/wp\/v2\/product_tag?post=167021"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}