The nameplate of the low pressure test box should be clear and durable, and fixed firmly. The contents of the nameplate of the low pressure test chamber shall include:

　　1. Product model and name;

　　2. Product quality;

　　3. Voltage, frequency and total power;

　　4. Product serial number, date of manufacture;

　　5. The name of the manufacturer of the low-pressure test chamber.

　　Note: The nameplate is also called the sign. The nameplate is installed on the machine, instrument, motor vehicle, etc., and is marked with the words such as name, model, specification, date of manufacture, manufacturer, etc.