{"id":12394,"date":"2025-10-06T21:56:20","date_gmt":"2025-10-06T19:56:20","guid":{"rendered":"https:\/\/sxe-consulting.com\/?page_id=12394"},"modified":"2025-10-06T21:56:20","modified_gmt":"2025-10-06T19:56:20","slug":"ppm-definition","status":"publish","type":"page","link":"https:\/\/sxe-consulting.com\/en\/glossaire-industriel\/ppm-definition\/","title":{"rendered":"PPM (Parts Per Million) - Definition"},"content":{"rendered":"

Visit PPM<\/strong> (Parts Per Million<\/em>, or Parts Per Million<\/strong>) is a quality indicator (KPI)<\/strong> which measures the number of defective (non-conforming) units produced in relation to one million units manufactured. It is the standard for measuring the performance of processes aimed at near-perfection, particularly in the following areas Six Sigma<\/strong>.<\/p>\n

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In-depth definition :<\/strong> In the context of the Series Production<\/strong> and Industrial Engineering<\/strong>, PPM enables defects to be quantified with very high resolution, where simple percentage rates are insufficient. For example, a defect rate of 1% may seem low, but it's equivalent to 10,000 PPM - a catastrophe in volume terms. The PPM is the universal indicator for assessing a process's ability to guarantee quality. Quality<\/strong> required by the Technical specifications (CCT)<\/strong>.<\/p>\n

The objective of a company aiming for\u2019Operational Excellence<\/strong> (including the Six Sigma<\/strong>) is to aim for a rate of 3.4 PPM, i.e. 3.4 defects per million units produced.<\/p>\n

PPM calculation and interpretation<\/strong><\/h3>\n

PPM is calculated by dividing the number of defective parts (rejects) by the total number of parts produced, then multiplying by one million.<\/p>\n

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Calculation example :<\/strong> A production line makes 250,000 units in a month and identifies 500 non-conforming parts:<\/p>\n

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Interpretation :<\/strong> The process produces 2,000 defective parts for every million units. That's a rate of 0.2%.<\/p>\n

PPM and Continuous Improvement (Six Sigma)<\/strong><\/h3>\n

PPM bridges the gap between simple defect detection and strategic root cause analysis (Root Cause Analysis<\/strong>).<\/p>\n

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  • Measurement Standard :<\/strong> PPM forces teams to see quality not in terms of success (parts that conform), but in terms of failure (parts that don't), which stimulates a culture of innovation.\u2019Continuous Improvement (KAIZEN)<\/strong>.<\/li>\n
  • Prioritization :<\/strong> Using the Pareto method<\/strong> on the PPM, the team can identify the types of defects that contribute most to non-quality, thus targeting problem-solving efforts (such as the\u20198D analysis<\/strong> or the 5 Why<\/strong>) where the impact on TRS<\/strong> and the Cost of Goods Sold<\/strong> is the heaviest.<\/li>\n
  • Anti-error systems :<\/strong> A high PPM indicates an urgent need to set up or reinforce systems. Poka-Yoke<\/strong> to eliminate human or technical error.<\/li>\n<\/ul>\n

    PPM and ROI (Return on Investment)<\/strong><\/h3>\n

    Reducing PPM is one of the most powerful levers for improving Return on Investment (ROI)<\/strong> of a company. Every point of PPM gained translates into a reduction in Muda<\/strong> related to waste, over-processing and loss of material (such as Refractory Materials<\/strong> wasted on redesign). Visit Quality rate<\/strong> from TRS<\/strong> increases mechanically with decreasing MPP.<\/p>\n

    In conclusion, the PPM<\/strong> is the essential indicator for companies aiming for perfection. It enables them to quantify the gap between their current performance and the ideal of the Six Sigma<\/strong>, The company's strategy is to focus all optimization efforts (from the Manufacturing<\/strong> methods Standardization<\/strong>) towards zero defects.<\/p>\n

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    <\/p>","protected":false},"excerpt":{"rendered":"

    Le PPM (Parts Per Million, ou Parties Par Million) est un indicateur de qualit\u00e9 (KPI) qui mesure le nombre d’unit\u00e9s d\u00e9fectueuses (non-conformes) produites par rapport \u00e0 un million d’unit\u00e9s fabriqu\u00e9es. C’est l’\u00e9talon de mesure de la performance des processus visant la quasi-perfection, notamment dans les d\u00e9marches Six Sigma.<\/p>","protected":false},"author":1,"featured_media":0,"parent":12324,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","footnotes":""},"definition":[99],"class_list":["post-12394","page","type-page","status-publish","hentry","definition-definition"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/sxe-consulting.com\/en\/wp-json\/wp\/v2\/pages\/12394","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sxe-consulting.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sxe-consulting.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sxe-consulting.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sxe-consulting.com\/en\/wp-json\/wp\/v2\/comments?post=12394"}],"version-history":[{"count":0,"href":"https:\/\/sxe-consulting.com\/en\/wp-json\/wp\/v2\/pages\/12394\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/sxe-consulting.com\/en\/wp-json\/wp\/v2\/pages\/12324"}],"wp:attachment":[{"href":"https:\/\/sxe-consulting.com\/en\/wp-json\/wp\/v2\/media?parent=12394"}],"wp:term":[{"taxonomy":"definition","embeddable":true,"href":"https:\/\/sxe-consulting.com\/en\/wp-json\/wp\/v2\/definition?post=12394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}