FacebookTwitterEmailLinkedin As highlighted by DNV, recent changes to the Selective Catalytic Reduction (SCR) Guidelines have altered how NOx measurement accuracy is assessed for catalyst monitoring. The former ±5% accuracy requirement has been replaced by a more flexible but less clearly defined concept of “sufficient accuracy”. The update places greater responsibility on applicants to justify the performance and monitoring of the lifetime of NOx catalysts, DNV explains. RelatedNews UK MPC criticizes IMO decision to reduce sea-service time requirement WSC: Dual-fuel containership and vehicle carrier fleet passes 1,200 vessels var jnews_module_21370693_0_6a03e2e563295 = {"header_icon":"","first_title":"Related","second_title":"News","url":"","header_type":"heading_8","header_background":"","header_secondary_background":"","header_text_color":"","header_line_color":"","header_accent_color":"","header_filter_category":"","header_filter_author":"","header_filter_tag":"","header_filter_cpt_post_tag":"","header_filter_cpt_tribe_events_cat":"","header_filter_cpt_web_story_category":"","header_filter_cpt_web_story_tag":"","header_filter_text":"All","sticky_post":false,"sticky_post_filter":false,"post_type":"post","content_type":"all","sponsor":false,"number_post":"2","post_offset":0,"unique_content":"unique1","include_post":"","included_only":false,"exclude_post":"21370693","include_category":"","exclude_category":"","include_author":"","include_tag":"3063,539,2339,1224,544,1709","exclude_tag":"","exclude_visited_post":false,"post_tag":"","tribe_events_cat":"","web_story_category":"","web_story_tag":"","sort_by":"latest","show_date":"","date_format":"default","date_format_custom":"Y\/m\/d","pagination_mode":"disable","pagination_nextprev_showtext":"","pagination_number_post":"2","pagination_scroll_limit":0,"ads_type":"disable","ads_position":1,"ads_random":"","ads_image":"","ads_image_tablet":"","ads_image_phone":"","ads_image_link":"","ads_image_alt":"","ads_image_new_tab