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11 votes
Accepted

Sign in/Sign out sheets for dangerous passages while hiking!

Sometimes, especially where permits are required, it is mandatory to fill out the sign-in/sign out books. Usually they are at trailheads, although I could see them on a particular piece or trail and ...
Charlie Brumbaugh's user avatar
11 votes
Accepted

Are climbing harnesses tested for upside down falls?

Are climbing harnesses tested for upside down falls? ... No. Harnesses have forces gradually applied to them of up to 15kN while attached to a dummy; the dummy is oriented in the head-up position and ...
aaaaargZombies's user avatar
9 votes
Accepted

Limitations of altitude after scuba diving

I'm no expert, so take this with a grain of salt. Basically, someone has collected the statistics and done the number crunching and worked out the risk. There is no "one size fits all" ...
bob1's user avatar
  • 10.6k
8 votes
Accepted

Differences between shock absorber and via ferrata set

No. An industrial shock absorber cannot be used as a via ferrata set, because: Via ferrata sets are intended to absorb falls that exceed a person's height. EN 355 (industrial absorbers) mentions a ...
QuantumBrick's user avatar
  • 3,379
7 votes
Accepted

What do the UIAA markings on rock climbing gear mean?

I'm answering here because I don't think it would fit as a comment but I believe others might have a better answer. Is each cam, stopper, and carabiner individually tested? Maybe. It will depend on ...
Desorder's user avatar
  • 2,338
7 votes
Accepted

Understanding the transition in USCG Personal Flotation Device (PFD) Labeling

The new labeling system gives each PFD not one type, but three attributes ranked on a spectrum: buoyancy, turning power, and size. The label adds a fourth attribute listing suggested activities for ...
cobaltduck's user avatar
  • 5,178
6 votes
Accepted

Storing hunting firearms and ammo in a safe not designed for them?

Most firearms regulations (and certainly best practices) require the firearm itself and its ammunition to be protected by separate, independent locks. Gun safes typically help you meet this ...
Chromatix's user avatar
  • 404
5 votes
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When did the manufacture date became mandatory written on labels in Europe?

I found these ones at Edelrid webpage EN 12277:2007. The following compulsory information is provided by the manufacturer on the product: Type of harness / model designation; Information explaining ...
Wernfried Domscheit's user avatar
5 votes

If I put a smoker in a shed, does my exhaust have to be at the top of my shed? (Does exhaust height matter)?

Safety guidelines for this smoker specifically state that it's not suitable for indoor use. It's quite literally the first thing on the instructions https://www.riversidegardencentre.co.uk/pdf/...
Separatrix's user avatar
  • 8,097
5 votes

No testing for temperature-dependent effects on climbing ropes?

As EN norms are not publicly available and quite costly, I can't confirm for sure that there is no temperature testing - but from what I hear there is none. If anyone can authoritatively confirm or ...
imsodin's user avatar
  • 21.7k
5 votes

Can I re-use a via ferrata carabiner/harness for climbing?

The carabiners are definitely good to go as those are pretty standard ratings. Most climbers using climbing harnesses and not body harnesses, I would suggest that you buy a climbing harness as I think ...
Charlie Brumbaugh's user avatar
5 votes
Accepted

At what wind speeds do ski operators close chair lifts, for safety?

It looks like the answer is that it depends on the direction, wind speed, terrain and type of chairlift. The ski area you are going to might keep statistics on how often the wind makes the use of ...
Charlie Brumbaugh's user avatar
4 votes
Accepted

How to safely use reverso with ferrata harness?

I've not done any formal testing and am hesitant to recommend such an arrangement, however over the past 15 years climbing I have in many situations either used or seen others use such harnesses and ...
SpoonerNZ's user avatar
  • 819
4 votes

Minimum safe rappel rope diameters?

I also agree that 8mm rope is pretty safe. I've done pretty close to straight vertical rappels up to 160ft on it while canyoneering (8mm rope is very common in canyoneering). I'm assuming you've ...
DawnPatrol's user avatar
4 votes
Accepted

Is it OK to keep a dyneema sling under constant tension (slackline)?

What you describe is called creep. According to this technical manual Creep is a material property frequently misunderstood and can be defined as the continued extension of a material when ...
QuantumBrick's user avatar
  • 3,379
3 votes
Accepted

what type of safety precautions are usually taken for ultramarathon events?

Many ultra running events do meet roads where checkpoints/aid stations can be placed (or tracks that can be accessed with permission). In long unsupported stretches competitors might be a little ...
Chris H's user avatar
  • 26.7k
3 votes

Storing hunting firearms and ammo in a safe not designed for them?

My Silvercore instructor said you should never store ammunition in an airtight or near-airtight safe, so that may be a contributing factor. If ammunition detonates in a fire or some other unintended ...
tomfumb's user avatar
  • 657
2 votes

If I put a smoker in a shed, does my exhaust have to be at the top of my shed? (Does exhaust height matter)?

Yes it will create CO. The question is if the CO level is dangerous when you open the door to tend to the cooker. Put it by the door and don't enter the shed while cooking.
paparazzo's user avatar
  • 7,186
2 votes

Recommended carabiner for belaying with Grigri and Giga Jul?

The manufacturers give these recommendations: Device Technical info diagram text Petzl GriGri Why this choice? The D shape helps resist carabiner rotation. There is only one device to attach, ...
iacobo's user avatar
  • 133
1 vote

How to handle a dropped DSMB spool at depth

Assume you mean you've sent up the SMB but dropped the spool. It happens to the best of us. If the spool's relatively heavy, such as the Apeks spools, it'll head off down faster than you can ...
GlennG's user avatar
  • 1,086
1 vote
Accepted

When slack lining between trees, how big should the tree trunk be if the line is 15 meters, person is ~150 pounds?

My son slack lines (6' & 165lbs) on +15 M of 1". Using tree savers and each tree is about 6 to 8 in in diameter. He practices on a staked rigging over 6" rounds that lie on their side at each end ...
E1Bridwell's user avatar
1 vote

No testing for temperature-dependent effects on climbing ropes?

As I said in the comments, I believe my findings deserve an answer on their own. These matters are urgent and I'm a little troubled by what I've found. I've sent emails to three major rope ...
QuantumBrick's user avatar
  • 3,379
1 vote

How can I know if a rope is certified? I found a hidden tag

Is this sufficient reason to conclude that the rope is indeed legitimate for aid/rescue use? Can it carry more than 2000 kg as specified by the NFPA 1983? No, but almost. If your statement was Is ...
StrongBad's user avatar
  • 10.7k

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