NB号CE认证，NB即（Number Body）公告号，简称NB号（编号为4位数），是指有得到欧盟委员会认可资质的欧盟本土检测实验机构， 公告号机构 每年都会受到欧盟官方审查，而且每一个公告号都有相应的授权范围，如有些公告号机构只能出具建材CE证书，有些则只能 ...

NB Mark. The NB mark is used by manufacturers to identify items registered with the National Board. It is also used by pressure relief device manufacturers and assemblers to identify pressure relief devices that have been certified by the National Board in accordance with NB-501, National Board Certification of Pressure Relief Devices.

After certification manufacturers can affix CE Mark on their Medical device and are free to market their devices in all EU Member states. Manufacturers can choose any notified body for conformity assessment (audit) regardless of which country the notified body is accredited.

ASME Mark for PRDs, Alt. Marking Methods NB-18, Pressure Relief Device Certification Test Lab Data

NB Symbol and National Board registration number. CR-4.1 The NB Symbol shown on the nameplate illustrated below is the official National Board Mark which denotes registration of the pressure-retaining item with the National Board. The National Board registration number is the manufacturing organization’s sequential

Registered pressure relief devices are stamped with a National Board NB Mark. For the manufacturer, data reports provide a form of customer service over the life of the equipment. Since 1921 there have been over 45 million data reports registered with the National Board. [2]

在认证证书里讲的NB，其实全称是Notified body； European Commission(欧洲委员会)授权给一些欧盟当地较有实力的实验室，授予他们一个代表该实验室的公告号码，当然会规定该实验室的检测能力所规定一定的发证范围，

2021年12月3日 · 欧盟委员会收到成员国或协议国的正式通知后，给机构一个固定的四位数的代码，就是常说的nb号码，并将认证机构授权范围在欧盟委员会的官方网站发布。

2025年3月10日 · NB Mark. The NB mark is used by manufacturers to identify items registered with the National Board. It is also used by pressure relief device manufacturers and assemblers to identify pressure relief devices that have been certified by the National Board in accordance with NB-501, National Board Certification of Pressure Relief Devices.

2006年8月15日 · The ONLY places that depict the proper location of the NB symbol and number, are: The National Board Application for Authorization to Register (A stampholder only sees this document every 3 years), and The National Board Publication NB-264 Called "Criteria for Registration of Boilers, Pressure Vessels and Pressure Retaining Items.