ISO594-1 Fig 3b Ring Gage For Male Luer Connectors
ISO594-1 Fig 3b Ring Gage For Male Luer Connectors
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ISO594-1 Fig 3b RING GAGE FOR MALE LUER CONNECTORS
ISO594/1 Fig 3a or Fig 3b RING GAGE FOR MALE LUER CONNECTORS
ISO 594 Has Been Replaced
ISO 80369-7 Foreword
ISO 80369-7:2016 cancels and replaces the first edition ISO 594-1:1986 and the second edition of ISO 594-2:1998, clauses, subclauses, tables, figures, and annexes of which have been consolidated and technically revised. The new ISO 80369-7 specification does not define any gauges.
We still offer the ISO 594 Conical Ring Gages
Understanding that some companies may desire to test select parts against the obsolete ISO 594 specification; we have continued to make available the ISO 594/1 conical gages.
ISO 594 Gages Can Be Used For ISO 80369-7 Connectors
The ISO 594-1 Gauges can be used to test ISO 80369-7 parts; however, in doing so you are giving up some of the ISO 80369-7 product tolerance. ISO 80369-7 Connectors which pass testing with ISO 594/1 conical gages will pass testing with gages designed for ISO 80369-7; however, connectors which pass testing with gages designed for ISO 80369-7 may fail testing when tested with ISO 594-1 conical gages. The authors of ISO 80369-7 have made slight changes to the Luer cones which slightly increased their size. The ISO 594 Luer cones fall within the sizes of the ISO 80369-7 cones so that they are completely backward compatible.
ISO594-1 Fig 3b Ring Gage For Male Luer Connectors. ISO 594-1 — Conical fittings with a 6 % (Luer) taper for syringes, needles and certain other medical equipment — Part 1: general requirements. This item is the Figure 3b gauge of that standard. It is the male luer 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 594-1:1986 was cancelled and replaced by ISO 80369-7:2016. Gauges to ISO 594-1 remain in service for legacy product lines and for markets that still reference the older edition.
Specification
| Standard | ISO 594-1 |
| Figure / annex | Figure 3b |
| Reference connector | Male luer |
| 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
Is ISO 594 still current?
ISO 594-1:1986 and ISO 594-2:1998 were cancelled and replaced by ISO 80369-7:2016, which consolidated and technically revised them. Gauges to ISO 594 remain in service for legacy product lines. If you are writing a new protocol, reference ISO 80369-7.
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:
Send the standard, figure number and quantity to Kingpo technical sales for a quotation and delivery date.
Parameters of the ISO594-1 Fig 3b Ring Gage For Male Luer Connectors (Figure 3b). Dimensions and limits are those of the figure named above; the standard governs where the two differ.
| Standard | ISO 594-1 |
| Figure / annex | Figure 3b |
| Gauge type | Ring gauge (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.