DIN EN ISO 5356-1:2015 Conical Connectors
DIN EN ISO 5356-1:2015 Conical Connectors
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DIN EN ISO 5356-1:2015 Conical Connectors
(THIS STANDARD WAS LAST REVIEWED AND CONFIRMED IN 2020. THEREFORE THIS VERSION REMAINS CURRENT.)
ISO 5356-1:2015 specifies dimensional and gauging requirements for cones and sockets intended for connecting anaesthetic and respiratory equipment, e.g. in breathing systems, anaesthetic gas scavenging systems, and vaporizers. The cones and sockets are therefore not regarded as devices in their own right.
It gives requirements for the following cones and sockets: 8,5 mm and 11,5 mm sizes intended for use in neonatal and paediatric breathing systems; 15 mm and 22 mm sizes intended for general use in breathing systems; 22 mm latching sockets (including performance requirements); 23 mm size intended for use with vaporizers, but not for use in breathing systems; 30 mm size intended for the connection of a breathing system to an anaesthetic gas scavenging system.
It does not specify the medical devices and accessories on which these cones and sockets are to be provided.
Gauges in picture:
| Items |
| plug gauge for 15 mm conical connectors. |
| ring gauge for 15 mm conical connectors. |
| plug gauge for 22 mm conical connectors. |
| ring gauge for 22 mm conical connectors. |
| plug gauge for 30 mm conical connectors. |
| ring gauge for 30 mm conical connectors. |
DIN EN ISO 5356-1:2015 Conical Connectors. ISO 5356-1 — Anaesthetic and respiratory equipment — conical connectors — Part 1: cones and sockets. It is the reference conical side of the interface. Kingpo machines reference connectors and gauges in-house from hardened steel, inspects them against the figure before despatch and supplies them with a calibration certificate.
What it is used for
- Dimensional and mechanical checks on the connector under test
- Repeatable mating with the sample so results are comparable between laboratories
ISO 5356-1 specifies the dimensional and gauging requirements for the 8.5 mm, 15 mm, 22 mm, 30 mm and 32 mm cones and sockets used to connect breathing systems, anaesthetic gas scavenging systems and ventilators.
Specification
| Standard | ISO 5356-1 |
| Material | Hardened stainless / tool steel |
| Calibration | Calibration certificate supplied |
| Made by | Kingpo — machined, inspected and calibrated in-house |
How the test is run
- Condition the reference connector and the sample together at the test temperature stated in the standard.
- Mate the sample to the reference connector with the axial force or torque the standard specifies — never by hand feel alone.
- Apply the test medium. Leakage tests use liquid under positive pressure or air under sub-atmospheric pressure; mechanical tests use a tensile or compressive load at a controlled rate.
- Hold for the dwell time in the standard and record the reading.
- Repeat for the number of samples the protocol calls for and report the worst case, not the average.
Reference connectors are inspection tools. Overriding tests and repeated axial-load tests wear them by design — plan replacement against test cycles.
Choosing the right figure
Annex C (and the equivalent annexes in the other parts) assigns one figure per reference connector, and each figure is certified for a specific set of tests. Picking the wrong one is the most common specification error in this category: the connectors look almost identical, but a figure that is certified for leakage is not the one you use for separation from axial load. Order against the figure number in your test protocol, not against the photograph.
What this is not
A reference connector is not a complete test system. Leakage, sub-atmospheric air leakage and separation-force tests need pressure, vacuum or force applied through ISO 80369-20 test apparatus. It is also not a simple go/no-go dimensional gauge: for a quick fit check on a conical fitting you want a plug gauge or a ring gauge, not a reference connector.
Frequently asked questions
Can I use one reference connector for several tests?
Only the tests the figure is certified for. Different figures are machined to different limits and, in some cases, to different materials, because the test loads differ.
Do you supply the test apparatus as well?
Yes. Kingpo builds the ISO 80369-20 apparatus — leakage, sub-atmospheric air leakage, separation force and unscrewing torque — alongside the reference connectors.
Is a calibration certificate included?
Yes, and we re-calibrate reference connectors you already hold.
Related gauges and equipment
Other gauges and test equipment to the same standard:
- ISO 5356-1 Medical Gauge For Testing HME Patient Port Connector
- ISO 5356-1 Fig A.1 8.5mm Plug Gage, Conical Plug test gauges for conical connectors made of materials other than metal.
- ISO 5356-1 Fig A.1 8.5mm Plug Gage, Conical Plug test gauges for conical connectors made of materials other than metal.
- ISO5356-1 Figure A.1 22mm Plug And Ring Test Gauges For Testing Anaesthetic And Respiratory Equipment
- ISO5356-1 Figure A.1 8.5 mm Plug And Ring Test Gauges For Testing Anaesthetic And Respiratory Equipment
- ISO5356-1 Figure A.1 30mm Plug And Ring Test Gauges For Testing Anaesthetic And Respiratory Equipment
Send the standard, figure number and quantity to Kingpo technical sales for a quotation and delivery date.
Parameters of the DIN EN ISO 5356-1:2015 Conical Connectors. Dimensions and limits are those of the reference connector defined by the standard named above.
| Standard | ISO 5356-1 |
| Reference connector | Reference conical |
| Material | Hardened stainless / tool steel |
| Scope of supply | Reference connector / gauge and calibration certificate |
| Calibration | Calibration certificate supplied; re-calibration available |
| Origin | Kingpo — machined, inspected and calibrated in-house |
Custom versions, alternative materials and re-calibration are available. Send the standard, figure number and quantity for a quotation. Reference connectors are consumable inspection tools — plan replacement against test cycles.