Pressure gauge certificate label markers A and B
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What is the difference between labels A and B on the pressure gauge certification? What is the basis for the classification?
Certification Type A falls under the category of devices that require mandatory inspection, while Certification Type B belongs to those that can be inspected by the owner themselves. Pressure gauges of Type A generally have high precision requirements and are used for calibration or in applications such as pressure vessels and boilers, etc. :)
The former Ministry of Chemical Industry issued a management regulation for the classification of measuring instruments (which classifies them into three levels: A, B, and C), and many still use this system today. Class A measuring instruments refer to those used in the areas of safety protection, medical and health care, environmental monitoring, and trade settlement, and which are included in the **List of Measuring Instruments Subject to Mandatory Inspection; the highest-level measuring instruments used by enterprises are also managed as Class A instruments. Class B measuring instruments are used in areas with high requirements for data such as process quality, energy consumption, and encrypted processing.
Is it still necessary to use such classification labels?
We follow your company’s management regulations; this is how we carry out classified management.
Certificate A falls under the category of products requiring mandatory inspection------------------Certificate B falls under the category of products subject to self-inspection
Certificate A falls under the category of products requiring mandatory inspection------------------Certificate B falls under the category of products subject to self-inspection
May I ask, which document or standard from the Ministry of Chemical Industry is being referenced? Could you share the electronic version? Thank you, I’m studying it.
I searched online; you can take a look at this link: https://wenku.baidu.com/view/003e65ff69dc5022abea0016.html
It feels a bit outdated, and it’s marked as “trial version” – has it been modified?