The UIAA equipment standard provides a baseline for equipment performance in a test lab under controlled conditions on new equipment. Although these test conditions are relevant to the conditions encountered climbing, conditions encountered at the crags and the condition of the equipment are equally important. This recommendation from the UIAA member federation The British Mountaineering Council (BMC) provides vital equipment information that is NOT explicitly addressed in the standard, particularly failure modes of the equipment and recommendations for the use, inspection, maintenance, and retirement of equipment.
Iris HMS Twist
Description
The Iris HMS is a refined shape for ease of use with many belay techniques. The round rope bearing surface helps the rope flow smoothly for belay and rappel. Despite having the most compact frame of our belay carabiners the generous bell is ideal for a quick Munter Hitch when travelling light and fast. Iris is offered in three of the most popular locking gate styles: screwlock, twistlock, and three stage lock.
Retail price
US$ 13.99
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Weight (g) |
80 g |
| Shape |
Pear / HMS |
| Locking |
Auto - 2 action |
| Straight or Bent |
Straight |
| Full Size |
Yes |
| Keylock |
Yes |
| Solid or Wire |
Solid |
| Gate Opening |
23 mm |
| Number of Colors |
1 |
| Lock Indicator |
No |
| Strengths (kN) |  28 kN  8 kN  9 kN |
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A pictoral representation of UIAA-121 and EN-12275 standards for connectors (the UIAA's fancy word for carabiners).