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    Symbols Glossary

    June 2026 8 min read

    Symbols Glossary Symbol Standard No

    Symbols Glossary

    Symbol
    Standard No. / Standard Title Standard Reference No. / Symbol Title Symbol Meaning
    manufacturer
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.1.1 / Manufacturer Indicates the medical device manufacturer
    Authorized representative in the European Community
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.1.2 / Authorized representative in the European Community Indicates the authorized representative in the European union. Symbol is accompanied by the name and address of the authorized representative adjacent to the symbol
    Date of Manufacture
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.1.3 / Date of Manufacture Indicates the date when the medical device was manufactured
    Use-by-date
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.1.4 / Use-by-date Indicates the date after which the medical device is not to be used
    Batch code
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.1.5 / Batch code Indicates the manufacturer's batch code or lot can be identified
    Catalogue number
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.1.6 / Catalogue number Indicates the manufacturer's catalogue number so the medical device can be identified
    Serial number
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.1.7 / Serial number Indicates the manufacturer's serial number so that a specific medical device can be identified
    Do not use if package is damaged
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.2.8 / Do not use if package is damaged Indicates a medical device that should not be used if the package has been damaged or opened
    Fragile, handle with care
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.3.1 / Fragile, handle with care Indicates a medical device that can be broken or damaged if not handled carefully
    Keep dry
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.3.4 / Keep dry Indicates a medical device that needs to be protected from moisture
    Lower limit of temperature
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.3.5 / Lower limit of temperature Indicates the lower limit of temperature to which the medical device can be safely exposed
    Upper limit of temperature
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.3.6 / Upper limit of temperature Indicates the upper limit of temperature to which the medical device can be safely exposed
    Temperature limit
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.3.7 / Temperature limit Indicates the temperature limits to which the medial device can be safely exposed
    Humidity limitation
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.3.8 / Humidity limitation Indicates the range of humidity to which the medical device can be safely exposed
    Atmospheric pressure limitation
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.3.9 / Atmospheric pressure limitation Indicates the range of atmospheric pressure to which the medical device can be safely exposed
    Consult instructions for use
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.4.3 / Consult instructions for use Indicates the need for the user to consult the instructions for use
    Caution
    ISO 15223-1 / Medical devices-Symbols to be used with medical device labels, labelling and information to be supplied 5.4.4 / Caution Indicates the need for the user to consult the instructions for use for important information such as warnings and cautions
    Type BF applied part
    IEC 60417 / Graphical symbols for use on equipment 5333 / Type BF applied part Identifies a type BF applied part complying with IEC 60601-1
    Type B applied part
    IEC 60417 / Graphical symbols for use on equipment 5840 / Type B applied part Identifies a type B applied part complying with IEC 60601-1
    Class II equipment
    IEC 60417 / Graphical symbols for use on equipment 5172 / Class II equipment Identifies equipment meeting the safety requirements specified for Class II equipment according to IEC 61140
    Polarity of d. c. power connector
    IEC 60417 / Graphical symbols for use on equipment 5926 / Polarity of d. c. power connector Identifies the positive and negative connections of a d. c. power supply
    For indoor use only
    IEC 60417 / Graphical symbols for use on equipment 5957 / For indoor use only Identifies electrical equipment designed for indoor use
    Alternating Current
    IEC 60417 / Graphical symbols for use on equipment 5032 / Alternating Current Indicates that the equipment is suitable for alternating current only; to identify relevant terminals
    Direct current
    IEC 60417 / Graphical symbols for use on equipment 5031 / Direct current Indicates that the equipment is suitable for direct current only; to identify relevant terminals
    Non-ionizing electromagnetic radiation
    IEC 60417 / Graphical symbols for use on equipment 5140 / Non-ionizing electromagnetic radiation Indicates generally elevated, potentially hazardous, levels of non-ionizing radiation, or to indicate equipment or systems e.g. that intentionally apply RF electromagnetic for diagnosis or treatment
    Stand-by
    IEC 60417 / Graphical symbols for use on equipment 5009 / Stand-by Identifies the switch or switch position by means of which part of the equipment is switched on in order to bring it into the standby condition
    Fuse
    IEC 60417 / Graphical symbols for use on equipment 5016 / Fuse Identifies fuse boxes or their locations
    “OFF”
    IEC 60417 / Graphical symbols for use on equipment 5008 / “OFF” Indicates disconnection from the mains, at least for mains switches or their positions, and all those cases where safety is involved
    “ON”
    IEC 60417 / Graphical symbols for use on equipment 5007 / “ON” Indicates connection to the mains, at least for mains switches or their positions, and all those cases where safety is involved
    Start; start of action
    IEC 60417 / Graphical symbols for use on equipment 5104 / Start; start of action Identifies the start button
    Refer to instruction manual / booklet
    ISO 7010 / Graphical symbols — Safety colours and safety signs — Registered safety signs M002 / Refer to instruction manual / booklet Indicates that the instruction manual / booklet must be read
    No access for people with active implanted cardiac devices
    ISO 7010 / Graphical symbols — Safety colours and safety signs — Registered safety signs P007 / No access for people with active implanted cardiac devices Indicates that people with active implanted cardiac devices are prohibited from entering a designated area
    This way up
    ISO 7000 / Graphical symbols for use on equipment 0623 / This way up Indicates the correct upright position of a package
    ip20
    IEC 60529 / Degrees of protection provided by enclosures (IP Code) N/A Protected against solid objects over 12.5mm (e.g., a finger) and no protection against liquids
    ip21
    IEC 60529 / Degrees of protection provided by enclosures (IP Code) N/A Protected against solid objects over 12.5mm (e.g., a finger) and protected against vertically falling drops of water or condensation
    ip22
    IEC 60529 / Degrees of protection provided by enclosures (IP Code) N/A Protected against solid objects over 12.5mm (e.g., a finger) and protected against falling drops of water, if the case is disposed at any angle up to 15 degrees from vertical
    ip54
    IEC 60529 / Degrees of protection provided by enclosures (IP Code) No specific reference no. / IP Classification Protected from limited dust ingress. Protected from water spray from any direction, limited ingress protection
    ip55
    IEC 60529 / Degrees of protection provided by enclosures (IP Code) No specific reference no. / IP Classification Protected from limited dust ingress. Protected from water jets from any direction, limited ingress protection
    Prescription Device
    21 CFR 801.109 / Prescription Devices Prescription Device Indicates that the product is a medical device and Federal Law (USA) restricts this device to sale by or on the order of a physician
    CE Marking
    Medical Devices Directive 93/42/EEC CE Marking CE marking indicates that a product complies with applicable European Union regulations
    Crossed out wheelie bin
    BS EN 50419, Marking of electrical and electronic equipment in accordance with article 11(2) of Directive 2002/96/EC (WEEE) Crossed out wheelie bin Indicates a product should not be disposed of in a landfill; the black bar indicates that the equipment was manufactured after 2005
    FCC Marking
    Federal Communications Commission FCC Marking FCC marking indicates the electronic device, which sold in the United States, is certified and the electromagnetic interference from the device is under the limits that are approved by Federal Communications Commission
    Cuff Positioning 1
    N/A Cuff Positioning Indicates the correct positioning for the monitor on the wrist
    Cuff Positioning 2
    N/A Cuff Positioning Indicates the correct positioning for the monitor on the wrist
    Artery Marks
    N/A Artery Marks Types of marks used to indicate the correct positioning of the artery for the upper arm
    Cuff Positioning 3
    N/A Cuff Positioning Indicator on the cuff for left upper arm
    Cuff Indicator
    N/A Cuff Indicator Range pointer and brachial artery alignment positioning indicator on the cuff
    Cuff Identifier
    N/A Cuff Identifier Identifies the type of cuff that is compatible with the blood pressure monitor
    Cuff Identifier 2
    N/A Cuff Identifier Identifies the type of cuff that is compatible with the blood pressure monitor
    Arm Circumference Range
    N/A Arm Circumference Range Indicates the range of arm circumferences to help with selection of the correct cuff size
    Warnings
    N/A Warnings Various warning symbols to indicate a potentially hazardous situation which, if not avoided, could result in death or serious injury
    Marking for the position of the replaceable air tube
    N/A Marking for the position of the replaceable air tube Indicates the position to insert the air tube
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