Byda have made I an inquiry as to the availability of the mentioned film in digital format.
psychokinetic - 23-7-2010 at 13:28
For the bits that those miss.zed - 24-7-2010 at 12:27
Thank you Wizard, for your excellent post.
I have always been very fond of my face. I shall endeavor to keep it.
Back in the day, some of my professors used to scoff at my wearing a full-face welders mask in the lab. Asked me to stop. Said, it made it look like
chemistry was dangerous!
I asked 'em if they knew where I could buy a new face, in the event of a serious accident, and they promptly shut-up.psychokinetic - 24-7-2010 at 13:28
Quote:
Asked me to stop. Said, it made it look like chemistry was dangerous!
Well duh (at them, not you).
I'm sure that's half the reason people get into chemistry.The WiZard is In - 24-7-2010 at 13:41
I have always been very fond of my face. I shall endeavor to keep it.
Back in the day, some of my professors used to scoff at my wearing a full-face welders mask in the lab. Asked me to stop. Said, it made it look like
chemistry was dangerous!
I asked 'em if they knew where I could buy a new face, in the event of a serious accident, and they promptly shut-up.
This from Bibliothek WiZadæ — located in basement D of Schloss
Zauberer it is the finest collections of polymorphous perverse (Woody Allen)
publications and nudist magazines in the Western World.
djh
----
Do you believe that the sciences would ever had
arisen and became great if there had not beforehand
been magicians, alchemists, astrologers and WiZards,
who thirsted and hungered after abscondite and
forbidden powers?
Friedrich Nietzsche
Die fröhliche Wissenschaft, IV, 1886
Safety Evaluation Tests of Personal Protective Equipment...
The WiZard is In - 24-7-2010 at 13:56
Title: Safety Evaluation Tests of Personal Protective Equipment for Ordnance [Operations]
Personal Author: Pritchard, Glenn C
Corporate Author: NAVAL WEAPONS CENTER CHINA LAKE CA
Source Code: 403019
Page Count: 43 page(s)
AD Number: ADA058987
Report Date: 01 AUG 1978
Distribution Code: 01 - APPROVED FOR PUBLIC RELEASE
Report Classification: U - Unclassified
Collection: Technical Reports
-----
Primarily concerned with KABOOM peach - 27-7-2010 at 04:10
Thanks for the pictures Wizard, confirming what I already believed with some very suntanned looking faces.
Wearing goggles around chemistry is like welding with a pair of shades on.
I'm amazed by how much health and safety has a hard-on for goggles when full face masks cost a similar amount, don't steam up and protect the entire
face.
I, and lots of other students, used to routinely take our goggles off in the labs because they were digging in so much after 2h or so mucky and
clouded that it made them a safety hazard to have them on in the first place. Then they'd end up on the benches with their cords dangling all around,
waiting to catch and topple things. When the safety gear begins becoming a hazard it's self, you know it's time to swap.
In the workshops, shards and dust would come in through the vents of the clouded goggles.
I have a pair of £15 goggles I bought from BOC. The first time I used them they started to cloud.
It doesn't need to be a super chemical resistant, millitary grade, filtered, full face respirator. Anything that'll deflect the horrendous base / acid
/ solvent / toxic splashes, hot metal or fire away from my eyes for long enough that I can duck and pull the visor off will do. In fact, with regards
to an accidental fire, a full face respirator could easily end up melting it's self to your face.
I don't think it's in anyway overly cautious to use a shield. If I were in charge of health and safety in schools and uni's, goggles would be banned
and replaced with visors. Same price, better protection, large unobstructed field of view, easier to clean, usually available with protective film
packs to stick on and peel off the front, more likely to get used.
The AOSafety Tuffmaster has various options others don't. Longer length visors, mesh screens, protective strips for the front, green shaded visors in
a number of darkness rating (they all filter UV to a similar extent, the shade rating is for the optical shading of different visible light source
intensities, not the UV), aluminized visors, top of the head protectors...
[Edited on 27-7-2010 by peach]Chainhit222 - 27-7-2010 at 06:07
Just needs a some duct tape and gloves to qualify as a class C hazmat suit... Probably should get a different gas mask too
But seriously, I don't think you need to worry about stuff like that unless you are vacuum distilling sulfuric acid, you should have a fume hood
shield in place to stop the splatter when you are working with something that can blow up. Regular safety goggles are enough to stop common stuff,
like a bit of splatter from a magnetic stirrer going too fast in a beaker of nitration mix.
[Edited on 27-7-2010 by Chainhit222]zed - 27-7-2010 at 13:22
Suit yourself.psychokinetic - 27-7-2010 at 13:23
Hey WiZ, was there any information on what it was that happened to the eyelid guy?
In terms of visors, goggles etc, we are required to have lab glasses/goggles for most work, but heavier gear is provided for when we need it.
0.1mol/L Na2S2O3 to the face? Wash it off.
0.1mol/L Na2S2O3 to the eyeball? Well fuck.
Most of the more 'fun' stuff that could ruin our faces also requires the fume hoods, so we lower the glass walls while working in them.peach - 27-7-2010 at 13:59
There are a lot of public toilets I'd like one of themZ for, with a velcro flap over the ass.
If I had an actual lab setup, I'd probably wear one just to keep the crap off my clothes. I've gone through numerous items of clothing when I've woken
up the next day and looked like McClain at the end of Die Hard. "No bullets Hanz!"
I used to work for one of the big online shroom companies who made spores syringes and grow kits. At one point, I made 3k syringes in a few days. If
you've ever bought one of those grow mushrooms at home kits, chances are I know the people who made it or made it myself.
When I set up my own lab for them, I rented an industrial unit and they repainted the entire place for me. There was a little office in the corner
that I decided would be the clean room.
The kind of thing I was working with required a level of cleanliness well beyond anything in my university's key coded labs, as the media would
contaminate in storage / postage and many spores aren't aggresive competitors when compared with things like laboratory E.Coli strains (which can be
plated in the open air and still dominate the culture, like yeast). Unlike bread mold, which will leave on a house brick and still laugh at you.
I bought massive rolls of thick polythene sheeting and glued them to the walls, ceiling and floor, taping up the seams. Then sterilized every single
thing in the room by wiping 15% industrial bleach over it and not rinsing it off. That absolutely nailed my lungs after spending a few hours in there
doing it. The bleach was green with free chlorine. I also did a lab in Uni where I assayed the germ killing capacity of bleach. Even household grade
destroys brand name off the shelf products and is safe to drink in concentrations that it's active at; which is next to nothing.
There was a 2m wide turbo-fan sounding flow hood in the room to clean the air of spores and dirt, which I scored for £100 as surplus when the RRP was
something stupid like £2-3k.
I bought a hooded bunny suit, booties, masks and gloves and would rinse my gloved hands, the flow hood surface, the impulse sealer, everything with
IPA on a minute by minute basis. Again, far above my university lab's standard, by a long way.
I'd pressure sterilize things for hours or even days. Yet again, my own tutor managed to fail at this task after following his autoclave's manual and
trying to sterilize bags of soil (germ city) with a standard 15 minute cycle; not long enough.
The bastards still made their way in there.
I just noticed, the shield that seems to have performed the best (8) looks a lot like the AOSafety Tuffmaster. The WiZard is In - 27-7-2010 at 14:17
Hey WiZ, was there any information on what it was that happened to the eyelid guy?
he reference (pic) is from:
Bruce M Auchauer, MD
Burn Reconstruction
Thieme Medical Publishers 1991
All is sez is : There are certain situations in which it will be
necessary to suture the eyelids together. This typically would be
when the eyelid margin has been destroyed and significant
amounts of the upper and lower eyelids have been destroyed.
Usually this amounts to sututing the upper and lower eyelid
conjunctiva together and overlaying a skin graft. This is
called the masquerade technique and is the only practical
method of protecting the eye in the most severe cases.
(Figs. 5-3A-D, 5-4)
Compared to some of the cases in this book this guy looks
like Miss America.
You probable don't want to view the chapter on Perineal Burns.
Back to safety glasses. Years ago paging through The Merck Index ...
Nitric Acid Fuming — May be prepared from conc.
nitric acid by ... or by adding a small amount of organic
reducing agent, such as formaldehyde.
I can do that - add the formaldehyde to la conc. HNO3 in a
250 ml [?] flask..... nothing .... add a bit more .... nothing...
then Holy Nitric Acid Volcano Batman.... what a mess.
I can do that - add the formaldehyde to la conc. HNO3 in a
250 ml [?] flask..... nothing .... add a bit more .... nothing...
then Holy Nitric Acid Volcano Batman.... what a mess.
That reminds me of when we were making paracetamol in A-Level organic chemistry.
My partner and I spent ages setting up our glassware to make a bench top factory for painkiller synthesis, then picked up the dilute bench acid by
mistake.
Zero.
We then found the concentrated acid in the fume hood and dropped it.
Instant plant failure a report from OSHA <----- the teacher.
One of the students had a can of coke in the lab. He was gently tapping it against the side of the desk as we talked over the homework. The seam
spontaneously failed and the can emptied over all 12 of us. Many lolz were had.
Trying to make my own hydrogen filled bin bag balloon, I filled a demijohn with conc. NaOH, aged about 13. Then added rolls of tinfoil. Nothing
happened.
One minute later I was running from the building, shutting the electricity off as I left.zed - 27-7-2010 at 20:53
(petitioner)
Oh, death...
Oh, death...
Won't you spare me over til another year?
Well, what is this that I can't see
With ice cold hands taking hold of me?
(Death)
Well, I am death none can excel
I'll open the door to heaven or hell!
Whoa death.... someone would pray
Could you wait to call me til another day?
The children pray the preacher preached
Time and mercy is out of your reach!
I'll fix your feet til you can't walk!
I'll lock your jaw til you can't talk!
I'll close your eyes so you can't see!
This very hour....come and go with me!
In death, I come to take the soul.
Leave the body and leave it cold.
To drop the flesh off of the frame.
The earth and worms both have a claim.
(petitioner)
Oh, death...
Oh, death...
Won't you spare me over til another year?
My mother came to my bed.
Place a cold towel upon my head.
My head is warm my feet are cold.
Death is a movin upon my soul.
Oh, death...how you're treatin me.
You close my eyes so I can't see.
Well you're hurtin my body you make me cold.
You run my life right out of my soul.
Oh, death...please consider my age...
Please don't take me at this stage.
My wealth is all at your command...
If you'll remove your icy hands.
(Death)
Oh, the young the rich or poor...
All alike to me you know!
No wealth no land no silver or gold
Nothin satisfies me, but your soul!
(petitioner)
Oh, death...
Oh, death...
Won't you spare me over til another year?
Won't you spare me over til another year?
Won't you spare me over til another year?
Traditional American Song.
Naturally, there are things worse than death, and becoming an overcooked crispy-critter without a face, is probably one of them. I'm going looking
for my welder's mask right now. The WiZard is In - 28-7-2010 at 07:45
Trying to make my own hydrogen filled bin bag balloon, I filled a demijohn with conc. NaOH, aged about 13. Then added rolls of tinfoil. Nothing
happened.
One minute later I was running from the building, shutting the electricity off as I left.
In my youth tin foil did not react with NaOH.
peach - 28-7-2010 at 10:30
Tin foil is used for premium rate audio capacitors now;
Prices are, "Stop touching our things and get out of the shop, you bloody commoner!"
I guess in the US you've probably started calling it aluminum foil by now. Everyone in the dark lands (UK) still calls it tin foil. And 99%+ of them
would say it was tin if you asked them.
