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• QC Lab: The Electric Harness Acid Test

  This month, the Quality crew investigates a mysterious harness failure and dives into the effects of chemical contamination on climbing textiles. Lire la suite >

• QC LAB: Gear Doesn't Last Forever—Ice Tool Picks

  This month is first part of a series the QA engineers are doing on gear lifespan. Gear, no matter how well designed and constructed, doesn't last forever. First off, they'll focus on ice tool picks. Lire la suite >

• QC Lab: Girth Hitching a Stopper

  In this post, KP weighs in on a weird one, but curious nonetheless. What happens when you girth hitch a stopper to a bolt hanger? Lire la suite >

• QC Lab: How Sketchy Is a Sharp-Edged Carabiner?

  I've yanked a lot of worn, sharp-edged biners off of routes, and I've tested a lot of them. It's not the ultimate strength that makes me the most nervous; it's the risk of cutting a rope. Lire la suite >

• QC Lab: How strong are Himalayan fixed lines?

  Our QC Lab posts aim to answer some of climbing's most common gear-related questions. This month features fixed ropes from the Himalayas. Lire la suite >

• QC Lab: How strong is the Spinner Leash?

  In this post KP weighs in on the intended use and risks of using the Spinner Leash. Read below for more knowledge and insight from our Director of Global Quality. Lire la suite >

• QC LAB: OFF-AXIS AND TRI/QUAD-AXIAL LOADING

  Recently, Kelly Cordes emailed KP and the QC crew, posing a lengthy question about the dangers of off-axis loading while at the belay. Our lab answered the question and got inspired to do a few more tests along the way. Lire la suite >

• QC LAB: Remounting previously drilled skis

  Our QC Lab posts aim to answer some of climbing's most common gear-related questions. This month, KP and the crew tackle the issue of mounting a pair of skis that have been previously drilled. Lire la suite >

• QC Lab: Retiring Old Ropes

  Our QC Lab posts aim to answer some of climbing's most common gear-related questions. This month, KP and the crew look at retiring ropes. Lire la suite >

• QC Lab: Sling Strength in 3 Anchor Configurations

  A few weeks ago a crew of super badass climbers rolled through the QA lab and one question came up more than just a few times: "What is the strongest way to rig an anchor at a belay?" Lire la suite >

• QC Lab: Autoblock Misuse

  Lately I've been getting quite a few questions on the use of the Black Diamond ATC-Guide and/or similar "autoblock"-style belay devices—and another installment of QC with KP was born. Lire la suite >

• QC LAB: Can a hot belay device melt my rappel slings?

  Our QC Lab posts aim to answer some of climbing's most common gear-related questions. This month—how hot do belay devices really get? Lire la suite >

• QC Lab: Can I Use a Sharpie to Mark the Middle of my Rope?

  Here's the question I get asked/emailed probably more than any other: "Can I use a Sharpie to mark the middle of my rope? "My answer: "I don't know." Lire la suite >

• QC LAB: Choosing the Right Tool for the Job - Carabiners

  Our QC Lab posts aim to answer some of climbing's most common gear-related questions. This month we talk about carabiners. Lire la suite >

• QC Lab: Connecting Two Slings Together

  Our QC Lab posts aim to answer some of climbing's most common gear-related questions. This month we talk about connecting slings. Lire la suite >

• QC LAB: Daisy chain dangers

  I see it all the time. People at the cliff with one or two daisy chains girth hitched to their belay loop or tie-in points, and using them as a personal anchor system when at an anchor. Wrong. Lire la suite >