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NYarvin's profile
Norman Yarvin
Norman Yarvin
Norman Yarvin
@NYarvin

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Norman Yarvin

@NYarvin

yarchive.net/blog
Joined April 2013

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    1. Funranium Labs‏ @funranium 30 Sep 2019
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      Would everyone like a quick primer on how to read the NFPA diamond, AKA the thing on the side of buildings/doors to rooms with blue, red, yellow, and white quadrants?

      9 replies 14 retweets 81 likes
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    2. Funranium Labs‏ @funranium 30 Sep 2019
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      Well, that's enough yeses. First and foremost, you should know that the NFPA diamond was devised as quick visual reference tool for firefighters to know what kind of a hazard a place has before the enter it when, specifically, it is all on fire.

      1 reply 0 retweets 22 likes
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    3. Funranium Labs‏ @funranium 30 Sep 2019
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      The "on fire" part is key. Generally, the hazard ratings all still hold true when everything isn't on fire but it's good to remember what it truly meant for.

      1 reply 0 retweets 23 likes
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    4. Funranium Labs‏ @funranium 30 Sep 2019
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      The red, blue, and yellow the squares on the diamond run on a 0-4 scale, where 0 denotes no hazard of this type and 4 says this is horrible, needs the hazmat team, and you might want to just let this one burn rather than enter.

      1 reply 1 retweet 20 likes
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    5. Funranium Labs‏ @funranium 30 Sep 2019
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      RED is Flammability. At 0, even when the room is on fire, the things won't burn. In fact, you might want to make your turnouts from this stuff. At 4, you're talking spontaneously combustible. Things that will light on fire, just because, in the middle of a Minnesota winter.

      2 replies 1 retweet 24 likes
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    6. Funranium Labs‏ @funranium 30 Sep 2019
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      BLUE is Health Hazard. At 0, not only is this non-toxic, but all of the fire decomposition products are non-toxic too. At 4, you may have already have cancer from this place due to reading the sign. Full Level A hazmat gear is needed to even think about responding to this fire.

      6 replies 1 retweet 30 likes
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    7. Monty [the rider]‏ @xiphmont 30 Sep 2019
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      Replying to @funranium

      On a personal note regarding not taking the cancer implications seriously. This is what killed my father, who worked full-spacesuit hazmat. People are used to 'lol, causes cancer in California'. As well as 'well, it probably causes cancer in 20 years.'

      3 replies 0 retweets 4 likes
    8. Funranium Labs‏ @funranium 30 Sep 2019
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      Replying to @xiphmont

      Aww man, I'm sorry. The origins of this sign date to the "shake 'n' bake" dumpster fires in the 1970s where an awful lot of dumpsters lit on fire at semiconductor fabs. Whole fire crews dead in a year from FASCINATING cancers after responding.

      2 replies 0 retweets 6 likes
      Norman Yarvin‏ @NYarvin 1 Oct 2019
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      Replying to @funranium @xiphmont

      What chemicals were involved?

      9:21 AM - 1 Oct 2019
      1 reply 0 retweets 0 likes
        1. Funranium Labs‏ @funranium 1 Oct 2019
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          Replying to @NYarvin @xiphmont

          A flaming dumpster load of garbage from a fab. Hell if I know. Neither did they.

          0 replies 0 retweets 0 likes
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