Can the health certificate of maritime bureau pass the low pressure of 90?

You can pass.

The low pressure of 90% on the health certificate is not a big problem, except for other big problems, it can generally pass, and there is no particularly small regulation.

Health certificate refers to the proof of preventive health examination, which proves that the examinee has the health quality to engage in the prescribed business. Health certificate mainly involves six diseases in five industries, which largely protects the health of employees and clients.