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NSF International protects and improves global human health. Manufacturers, regulators and consumers look to us to facilitate the development of public health standards and provide certifications that help protect food, water, consumer products and the environment.

Reopening During COVID-19

Emerge confidently from COVID-19 closures with NSF International, a leader in public health and safety. NSF offers science-based guidance and tools to help your organization reopen and stay open.

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We provide certification, testing and auditing to public health standards in all key industries and sectors worldwide.

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Separate from certification, our experts provide world-class strategic and technical consulting services tailored to you.

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Our online, on-site and on-demand training keeps companies ahead of the latest regulatory requirements and industry best practices.

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推荐4个国外在线视频下载网站，YouTube、vimeo、推特等 ...:2021-9-19 · 推荐4个国外在线视频下载网站，YouTube、vimeo、推特等视频网站很多时候我们在网站上看到喜欢的，有价值的视频就想下载下来，把它收藏起来，今天小编就教大家怎么去下载这些视频，推荐了几个网站，喜欢的赶快去下载吧！

电脑上youtube

The NSF mark is your assurance that a product has been tested by a trusted independent certification organization. It is valued by consumers, manufacturers, retailers and regulatory agencies worldwide.

Learn more about the NSF mark

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Clean Water Crusader Joseph Cotruvo Earns 2020 Environmental Health Award From NSF International and NEHA

July 30, 2020

Given annually in honor of NSF International’s co-founder and first executive director, the Walter F. Snyder award recognizes outstanding contributions to the advancement of environmental health.

United Poly Systems Earns First NSF Certification for HDPE Electrical Conduit

July 29, 2020

NSF International certification means products have been evaluated for performance and safety

YouTube 十五周年：一个失败的约会网站，如何成为了在线 ...:2021-5-16 · 在线视频之王：YouTube 划重点：失败的约会网站的副产品意外地火了贾斯汀·比伯从YouTube的崛起为后者改变音乐和音乐产业提供了铺垫专不专业清 ...

July 24, 2020

如何通过网址识别youtube或vimeo网站？ - 码客:2021-2-3 · 如何通过网址识别youtube或vimeo网站？ - 我在Drupal中创建了一个表单，其中有一个名为'URL'的字段。现在该网站的用户将在这里输入任何网址。现在，由该用户输入的网址我只是想验证它是否是一个适当的YouTube或VIMOO网址或不。例如：网址 ...

Educational Posters Available to Help Prevent the Spread of COVID-19

July 16, 2020

NSF International’s new Protect Yourself, Protect Others posters available in five languages to encourage personal behaviors that may prevent the spread of SARS-Cov-2

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