{"id":2660,"date":"2025-07-10T08:14:42","date_gmt":"2025-07-10T08:14:42","guid":{"rendered":"https:\/\/re.leffer.de\/qualitat-sicherheit\/"},"modified":"2026-07-15T08:52:31","modified_gmt":"2026-07-15T08:52:31","slug":"quality-safety","status":"publish","type":"page","link":"https:\/\/re.leffer.de\/en\/quality-safety\/","title":{"rendered":"Quality &amp; Certifications"},"content":{"rendered":"\n<div class=\"wp-block-cover alignfull is-light is-style-glass\"><img decoding=\"async\" width=\"2560\" height=\"1707\" class=\"wp-block-cover__image-background wp-image-2134 size-full\" alt=\"\" src=\"https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/10\/5D3_9761b-1-scaled.jpg\" data-object-fit=\"cover\" srcset=\"https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/10\/5D3_9761b-1-scaled.jpg 2560w, https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/10\/5D3_9761b-1-300x200.jpg 300w, https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/10\/5D3_9761b-1-1024x683.jpg 1024w, https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/10\/5D3_9761b-1-768x512.jpg 768w, https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/10\/5D3_9761b-1-1536x1024.jpg 1536w, https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/10\/5D3_9761b-1-2048x1365.jpg 2048w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim\" style=\"background-color:#99a4ac\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-block-cover-is-layout-constrained\">\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"has-base-color has-text-color has-link-color wp-elements-42a7e3f773a95cc4be191563e3d10ae2 wp-block-paragraph\">Quality assurance is not a constraint for us; we are convinced that the reliability of a product determines its value for our customers. We are aware of this responsibility.<\/p>\n<\/blockquote>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Our ISO 9001-certified quality management system complies with international standards, with precision and reliability embedded in every process. In addition, the company holds ASME U and U2 certification, thereby meeting strict international requirements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The Quality Management and Quality Assurance team oversees operational processes and ensures that all procedures, tests, and optimizations deliver consistent, long-term results.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">All non-destructive tests are performed in-house by Level II and III certified personnel. Our laboratory is fully equipped to perform all types of metallurgical and mechanical tests, both in-house and on-site.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This commitment has repeatedly earned LEFFER recognition from international customers for our excellence, reliability, and performance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Highest Standards \u2013 certified and accredited<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">At LEFFER, quality is not just a promise\u2014it\u2019s a standard we live by. Our quality management system has been recertified to DIN EN ISO 9001:2015 and also meets the strict requirements of the ASME Code (U and U2).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A comprehensive <strong>quality management manual<\/strong>, along with detailed <strong>quality assurance and work instructions<\/strong>, ensures that all processes are continuously monitored, documented, and improved. We have received multiple awards from our customers for the quality of our products\u2014a testament to the reliability and precision of our work.<\/p>\n\n\n\n<div class=\"wp-block-group  alignfull has-grey-background-color has-background is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">Our Certifications at a glance<\/h2>\n\n\n\n<h4 class=\"wp-block-heading\">Quality and Management Systems<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/re.leffer.de\/kompetenzen\/zertifikate__trashed\/iso-90012015\/\">ISO 9001:2015<\/a><\/strong> \u2013 Quality Management<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/re.leffer.de\/kompetenzen\/zertifikate__trashed\/iso-450012018-scc\/\">ISO 45001:2018 &amp; SCC<\/a><\/strong> \u2013 Occupational Safety and Health Management<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/re.leffer.de\/kompetenzen\/zertifikate__trashed\/iso-500012018\/\">ISO 50001:2018<\/a><\/strong> \u2013 Energy Management System<\/li>\n\n\n\n<li><strong>ISO 17025<\/strong> \u2013 Testing Laboratory Competence and Calibration Capability<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/re.leffer.de\/kompetenzen\/zertifikate__trashed\/achilles\/\">ACHILLES <\/a><\/strong>\u2013 Certification of Membership<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Welding Technology, Pressure Equipment and Piping<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/re.leffer.de\/kompetenzen\/zertifikate__trashed\/en-iso-3834-2\/\">EN ISO 3834-2<\/a><\/strong> \u2013 Welding Quality Requirements<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/re.leffer.de\/kompetenzen\/zertifikate__trashed\/2014-68-eu-ped-module-h-h1\/\">2014\/68\/EU (PED) Module H\/H1<\/a><\/strong> \u2013 Pressure Equipment Directive<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/re.leffer.de\/kompetenzen\/zertifikate__trashed\/asme-code-stamp-u-u2\/\">ASME Code Stamp U &amp; U2<\/a><\/strong> \u2013 Certification in accordance with the ASME Code<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/re.leffer.de\/kompetenzen\/zertifikate__trashed\/ad-2000-hp0-hp100r\/\">AD 2000 HP0 \/ HP100R<\/a><\/strong> \u2013 Manufacture of Pressure Vessels<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/re.leffer.de\/kompetenzen\/zertifikate__trashed\/din-en-13480\/\">DIN EN 13480<\/a><\/strong> \u2013 Metal Piping<\/li>\n\n\n\n<li><strong>DIN 2303 \/ Q2 BK1<\/strong> \u2013 Welding of Military Products<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Steel and Plant Construction<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/re.leffer.de\/kompetenzen\/zertifikate__trashed\/en-1090-1-wpk-en-1090-2-exc1-exc4\/\">EN 1090-1 WPK \/ EN 1090-2 EXC1\u2013EXC4<\/a><\/strong> \u2013 Construction of Steel and Aluminum Structural Systems<\/li>\n\n\n\n<li><strong><a href=\"https:\/\/re.leffer.de\/kompetenzen\/zertifikate__trashed\/dnv-welding-workshop-approval-certificate\/\">DNV \u2013 Welding Workshop Approval Certificate<\/a><\/strong> \u2013 Welding Certification<\/li>\n\n\n\n<li><a href=\"https:\/\/re.leffer.de\/kompetenzen\/zertifikate__trashed\/whg\/\"><strong>WHG<\/strong> <\/a>\u2013 Construction of facilities hazardous to water resources in accordance with the Water Resources Act<\/li>\n<\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-group  alignfull has-lightgrey-background-color has-background is-layout-constrained wp-block-group-is-layout-constrained\">\n<h2 class=\"wp-block-heading\">Material Testing<\/h2>\n\n\n\n<div class=\"wp-block-media-text has-media-on-the-right is-stacked-on-mobile is-style-offset\"><div class=\"wp-block-media-text__content\">\n<p class=\"wp-block-paragraph\">LEFFER operates its own materials testing laboratory, certified to DIN EN ISO\/IEC 17025, which provides fast and precise results for in-process quality assurance. Thanks to its close integration with our production facilities, tests can be conducted and evaluated immediately\u2014efficiently, reliably, and with the highest precision.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Our laboratory is equipped with a wide range of stationary and portable testing devices that enable us to test virtually all metallic materials. This ensures that our products meet the highest quality and safety standards. Our <strong>materials testing is an integral part of our quality management system<\/strong> and plays a crucial role in ensuring the durability, safety, and reliability of our products.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">With this range of services, LEFFER ensures that<strong> materials, welded joints, and components<\/strong> meet the required specifications at all times\u2014from incoming inspection to final acceptance.<\/p>\n<\/div><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/10\/5D3_8781-1024x683.jpg\" alt=\"\" class=\"wp-image-2117 size-full\" srcset=\"https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/10\/5D3_8781-1024x683.jpg 1024w, https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/10\/5D3_8781-300x200.jpg 300w, https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/10\/5D3_8781-768x512.jpg 768w, https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/10\/5D3_8781-1536x1024.jpg 1536w, https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/10\/5D3_8781-2048x1365.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Service range of our materials testing laboratory<\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">Stationary Test Procedures<\/h4>\n\n\n\n<div class=\"factcards has-2-columns wp-block-fbo-factcards\" id=\"6a61d69679663\">\n\n    \n\n    <div href=\"\" class=\"factcard wp-block-fbo-factcard\" id=\"6a61d69679663\">\n\n    \n            <div class=\"card__header\">\n                                                    <h3 aria-describedby=\"6a61d69679663\">Hardness Testing<\/h3>\n                    <\/div>\n    \n            <div class=\"card__body\">\n            \n\n<p class=\"wp-block-paragraph\"><strong>Brinell, <\/strong>e.g<strong>.:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>HBW 2,5\/31,25<\/li>\n\n\n\n<li>HBW 2,5\/187,5<\/li>\n\n\n\n<li>HBW 10\/300<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Rockwell B<\/strong>: HRB<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Vickers<\/strong>, e.g..:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>HV 5<\/li>\n\n\n\n<li>HV 10<\/li>\n\n\n\n<li>HV 20<\/li>\n<\/ul>\n\n        <\/div>\n    \n    \n    <\/div>\n\n\n\n    <div href=\"\" class=\"factcard wp-block-fbo-factcard\" id=\"6a61d69679663\">\n\n    \n            <div class=\"card__header\">\n                                                    <h3 aria-describedby=\"6a61d69679663\">Notch impact strength<\/h3>\n                    <\/div>\n    \n            <div class=\"card__body\">\n            \n\n<ul class=\"wp-block-list\">\n<li>300 J Pendulum striking mechanism<\/li>\n\n\n\n<li>ISO-V and Charpy-V specimens<\/li>\n\n\n\n<li>down to -196\u00b0C<\/li>\n<\/ul>\n\n        <\/div>\n    \n    \n    <\/div>\n\n\n\n    <div href=\"\" class=\"factcard wp-block-fbo-factcard\" id=\"6a61d69679663\">\n\n    \n            <div class=\"card__header\">\n                                                    <h3 aria-describedby=\"6a61d69679663\">Tensile tests<\/h3>\n                    <\/div>\n    \n            <div class=\"card__body\">\n            \n\n<ul class=\"wp-block-list\">\n<li>with a universal testing machine<\/li>\n\n\n\n<li>up to 600 kN<\/li>\n<\/ul>\n\n        <\/div>\n    \n    \n    <\/div>\n\n\n\n    <div href=\"\" class=\"factcard wp-block-fbo-factcard\" id=\"6a61d69679663\">\n\n    \n            <div class=\"card__header\">\n                                                    <h3 aria-describedby=\"6a61d69679663\">Macro-\/Microscopy and Microstructure<\/h3>\n                    <\/div>\n    \n            <div class=\"card__body\">\n            \n\n<p class=\"wp-block-paragraph\"><strong>Metallography with our own laboratory:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Determination of Ferrite Content<\/li>\n\n\n\n<li>Testing for Intermetallic Phases<\/li>\n\n\n\n<li>Electrolytic Etching<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Welded joints, e.g.:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>micro- and macropolish<\/li>\n\n\n\n<li>weldseam setup<\/li>\n\n\n\n<li>heat affected zone<\/li>\n\n\n\n<li>gap runout of tube weld-in seams<\/li>\n<\/ul>\n\n        <\/div>\n    \n    \n    <\/div>\n\n\n<\/div>\n\n\n<h4 class=\"wp-block-heading\">Mobile Test Procedures<\/h4>\n\n\n\n<div class=\"factcards has-3-columns wp-block-fbo-factcards\" id=\"6a61d69679663\">\n\n    \n\n    <div href=\"\" class=\"factcard wp-block-fbo-factcard\" id=\"6a61d69679663\">\n\n    \n            <div class=\"card__header\">\n                                                    <h3 aria-describedby=\"6a61d69679663\">Mobile Hardness Testing<\/h3>\n                    <\/div>\n    \n            <div class=\"card__body\">\n            \n\n<ul class=\"wp-block-list\">\n<li>Rebound Hardness\/Leeb Hardness (HLD, EQUOTIP 3)<\/li>\n\n\n\n<li>Vickers Hardness Test (HV (UCI) 10, MIC 10)<\/li>\n<\/ul>\n\n        <\/div>\n    \n    \n    <\/div>\n\n\n\n    <div href=\"\" class=\"factcard wp-block-fbo-factcard\" id=\"6a61d69679663\">\n\n    \n            <div class=\"card__header\">\n                                                    <h3 aria-describedby=\"6a61d69679663\">Chemical Analysis and Positive Material Testing (PMI)<\/h3>\n                    <\/div>\n    \n            <div class=\"card__body\">\n            \n\n<p class=\"wp-block-paragraph\"><strong>Spectrometer<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Argon probe<\/li>\n\n\n\n<li>Air probe<\/li>\n\n\n\n<li>Portable x-ray fluorescence (XRF)<strong> Analyzer<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n        <\/div>\n    \n    \n    <\/div>\n\n\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Non-destructive testing methods<\/h2>\n\n\n\n<div class=\"wp-block-media-text is-stacked-on-mobile is-style-offset\" style=\"grid-template-columns:46% auto\"><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/11\/5D3_9647-1024x683.jpg\" alt=\"\" class=\"wp-image-3380 size-full\" srcset=\"https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/11\/5D3_9647-1024x683.jpg 1024w, https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/11\/5D3_9647-300x200.jpg 300w, https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/11\/5D3_9647-768x512.jpg 768w, https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/11\/5D3_9647-1536x1024.jpg 1536w, https:\/\/re.leffer.de\/wp-content\/uploads\/2025\/11\/5D3_9647-2048x1365.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p class=\"wp-block-paragraph\">To ensure that our products maintain a consistently high level of quality, they are inspected using non-destructive testing (NDT) methods. These testing methods are also used to optimize the manufacturing process (e.g., welding techniques).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The primary methods used are radiographic testing (RT), ultrasonic testing (UT), magnetic particle testing (MT), and penetrant testing (PT). In addition, advanced ultrasonic methods such as TOFD or phased array can be used upon customer request.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These inspections are conducted almost exclusively using our own equipment and inspection personnel. For radiographic testing, we have X-ray systems available that use both direct-beam and omnidirectional beam technology, ranging from 160 keV to 450 keV.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Our NDT staff are dual-certified in accordance with <strong>EN 374 \/ ISO 9712 (Levels 2 and 3)<\/strong> as well as <strong>SNT-TC-1A (Levels II and III)<\/strong>.<\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Our ISO 9001-certified quality management system complies with international standards, with precision and reliability embedded in every process. In addition, the company holds ASME U and U2 certification, thereby meeting strict international requirements. The Quality Management and Quality Assurance team oversees operational processes and ensures that all procedures, tests, and optimizations deliver consistent, long-term results. [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"featuredimage_focalpoint":[],"footnotes":""},"categories":[],"tags":[88],"class_list":["post-2660","page","type-page","status-publish","hentry","tag-kompetenzen-en"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Quality &amp; Certifications - Leffer - Stahl- und Apparatebau<\/title>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Quality &amp; Certifications - Leffer - Stahl- und Apparatebau\" \/>\n<meta property=\"og:description\" content=\"Our ISO 9001-certified quality management system complies with international standards, with precision and reliability embedded in every process. 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