Cylinder Safety
Standards
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HSE issues cylinder safety warning
The Diving Inspectorate has just issued this safety alert concerning cylinders manufactured from aluminium alloys HE30/AA6082 and AA6351 and used primarily for gases for underwater breathing apparatus.
Annual cylinder inspections are not that bad
The article, “UK under pressure to test cylinders annually,” published in the previous issue (#79) was informative, but appeared to be unfairly attacking standards in the United States.
UK Cylinder Testing Protocols To Change?
The UK recreational and technical diving industry is continuing to lobby against a forced change to a proposed ISO cylinder testing standard.
Set Theory
Though double (twinset) tanks and stage bottles are generally a requirement for most technical diving operations, diving sets vary significantly depending on the specific application and diving environment. Here’s a look at some of the more common methods of set rigging as practiced today in the “doubles community.”