Melting Pot Wiki - User contributions [en]

Kilnbuilding; Safety Controller Layout

2010-06-15T02:10:46Z

Moto42:

== Kilnbuilding; Safety Controller Layout ==

To reduce the possibility of a run-away kiln, this controller is designed with a separate safety circuit.

This is a schematic layout of the various components;

[[Image:controller_circuit_layout.png]]

'''Kit list:'''

RS part numbers and descriptions;

223-972 £15.03 Enclosure, grey, metal, equipment housing, two tone, 203.2x177.8x88.1mm

380-6075 £12.23 Fan, AC, sleeve bearing, Sunon, 80x80x38

589-733 £2.02 Neon, indicator, round, prominent, tag 250mm connection, 220V, red

589-749 £2.20 Neon, indicator, round, prominent, tag 250mm connection, 220V, green

246-6531 £0.07 Connector, crimp terminal, 2.8x0.8 receptacle, 0.2-0.56mm

246-6604 £0.02 Connector, crimp terminal, 2.8mm, insulator boot

380-6075£12.23 Fan, AC, sleeve bearing, Sunon, 80x80x38mm, 230V

534-806£6.72 Crimp, tool, connector, dual purpose

>RS electronics website: http://rswww.com/

----
'''Description:'''

[[Image:thermocouple.jpg]]
This is the thermocouple supplied by CAL controls. 6mm dia x 100mm long. The cable is stainless steel braided. It slides into a ceramic sheath (or bell-end tube), drilled into the side of the kiln. The ceramic sheath protudes into the kiln chamber by approximately 35mm.

>CAL controls website; http://www.cal-controls.com

[[Image:ssrs.jpg]]
Two types of solid state relay (SSR) shown here; light and heavy duty. The heavy duty one on the left has a built-in heatsink. This is the type I use and it's mounted horizontally within the casing, so that there is maximum surface exposure for cooling purposes. The cooling fan is mounted directly underneath it.

The SSR on the right needs to be fitted to a heatsink to dissipate the heat generated. Using silicon (supplied by CAL controls but also by RS electronics) to make a good conducting bond between the two and so prolong the life of the SSR.

[[Image:box03.jpg]]
As you can see from the schematic diagram at the top of the page, there is a red led lamp running in parallell with the element. So you can see when current is going to the element.

Also on the CAL 9500P, you can see that the small green indicator light on the face of the controller comes on when the controller has has closed the SSR. But it doesn't show that current is going to the element. That's why I've fitted a lampe in the element circuit. Also so my eyes can see from across the other side of the studio without wearing glasses.

Also shown is the power switch for the controller itself.

[[Image:box02.jpg]]
So here you can see the target temperature is 570degC. The actual temp inside the kiln is 56degC. There are other neat tricks you can set up by means of the 'user configurable alarms' on the CAL9500P, apparently.

[[Image:box01.jpg]]
Here the controller has put the power on again. The (red) element lamp is on and the element is live.

[[Image:analogue_box01.jpg]]
This is the analogue box. This runs on a seperate circuit and is the failsafe. The fusing temperature I use is 800degC, so if I set the analogue controller to cut off at 840degC, that's what it will do; thus allowing me to leave the kiln for a day or two if necessary and not have to worry about the SSR failing in the closed position, resulting in a runaway. The kiln gets hotter and hotter and hotter until the elements melt. Then it can cool down.

If there is a power failure during the firing schedule, the contactor releases in the open position and the circuit cannot be made again until the soak/cut off switch is remade.

[[Image:analogue_box02.jpg]]
Power cable going in the left side, power to the element from underneath. The green lead goes to the (other) thermocouple.

----

Disclaimer: This is the controller I designed and it works for me. You are free to copy any part of it on the understanding that if you blow yourself up or kill yourself or even worse (for whoever finds you and has to mop up the bits that is), fry yourself, it's entirely on your head. I'm not telling you what to do, just showing you what I do, simple as.

--[[User:Swampy|Swampy]] 22:44, May 17, 2007 (EDT)

[[Category:Tools]]
[[Category:DoItYourself]]

Melting Pot Wiki:Community Portal

2010-06-13T00:50:20Z

Moto42:

FRIST 
Frits

Melting Pot Wiki:Community Portal

2010-06-13T00:50:03Z

Moto42:

FRIST
Frits

Xanthine Glass

2010-06-13T00:49:14Z

Moto42:

See silver in glass.

Yellow glass, sometimes made by adding silver to glass.

[[Category:Materials]]

Wardian Case

2010-06-13T00:48:24Z

Moto42:

Originally a flowers box with a glass bell cover.

Later named Vivarium.

Method of bringing plants back from distant lands, the glass bells created condensation that watered the plants contained within.

[[Category:Products]]

Vitro Di Trina

2010-06-13T00:47:40Z

Moto42:

A Venetian glass having lacy threads of opaque white in transparent colored body. As a "modern" glass it may date from c. 1450.
The style was produced in Roman glass factories.

[[Category:Materials]]

Viscosity

2010-06-13T00:47:15Z

Moto42:

Stiffness.
The amount of resistance to flow of a liquid, measured in centriposes, high viscosity liquids are stiff. Viscosity of glass increases with decreasing temperature, stiffening glass until below the strain point when glass acts as a solid.

[[Category:Jargon]]
[[Category:Physics]]

Vermiculite

2010-06-13T00:46:40Z

Moto42:

Expanded mica.

A light weight, insulating material, used to allow hot glass to cool slowly.

[[Category:Tools]]

Vent

2010-06-13T00:46:27Z

Moto42:

An outlet for air, smoke, and fumes not be confused with peep holes. Kiln vents allow organic fumes, from initial heating, and excess heat to escape.

[[Category:Safety]]
[[Category:Tools]]

UTFSEATFW

2010-06-13T00:45:51Z

Moto42:

Is an acronym for Use The Fucking Search Engine And The Fucking Wiki.

The use of this phrase dates back to 12/7/2008 as used by menty666

Reference link here: http://www.thegldg.com/forum/showthread.php?t=23270

[[Category:Jargon]]

Twisties

2010-06-13T00:45:27Z

Moto42:

Twisties also known as twist ups is a simple pattern technique where one or more colours appears twisted into an elongated spiral within clear or translucent coloured glass, although for this description, clear glass is used.

The most common way to do this (although there are other methods) is:

1. create a gather of clear, the size of the gather is dependent on how big you want your final product to be, as you will be stretching out (elongating) this gather. However it is all stil relative, for example if you make a 2cm (in diameter) gather, you may choose to stretch this out to a stringer that is 3mm in diameter but 10cm long or with the same 2cm gather you may choose to stretch it out to 1cm in diameter but only 5cm long (or any such combination)

2. Using a tool (usually a masher) squish the gather so that it is a flat pancake, while remaining attached to the rod (which is now your punty)

3. Apply a colour to one side or both sides of the pancake, or you can also fume the pancake.

4. Apply clear glass on top of the colour or fume.

5. Melt in the clear and attach a punty to the other side.

6. Heat the gather with the trapped colour/fume till it becomes soft like chewing gum.

7. Remove from flame, and twist the punties in opposite directions while pulling to the desired length and thickness. Some people like to use a power drill to do the twising in order to achieve a very tight twist.

This technique is often used to produce what is called a filligri and is a common feature in the stem of wine goblets.

[[Category:Techniques]]

Triple mix

2010-06-13T00:45:02Z

Moto42:

== Overview ==
A system patented by GTT. The use of a center injector into a surface mix torch.

== Principle ==
The ports are build so that there is an outer layer of oxygen. Then the fuel(2) to be burned is injected out of a half moon port, the moon is made by the center injector being fed through the fuel tube. The center injector being layer(3).

thus triple or tri-mix.

This allows the creation and ability to run a variety of flames and atmospheres.

At the writing of this it is the only oxy/fuel/oxy mixing known. In production.

[[Category:Torches]]
[[Category:Tools]]

Triple Blown

2010-06-13T00:44:01Z

Moto42:

== Triple Blown ==

''also: Double Blown, Quad Blown''

Refers to a non-exsistant technique handed down from one generation of pipe makers to the next. Often encountered when a novice pipe maker goes out to sell his wares for the first time. Many shop owners, wanting to sound knowledgable, will ask if the work is [[Triple Blown]]

Likewise, many unscrupilous glass blowers and sellers will represent thier work as being Triple Blown so as to confuse or trick the buyers into thinking their work is something better than ordinary glass.

Some people have suggested that Triple Blown is a real technique, offering suggestions from the absurd to the plausible. Current research being done at MIT and Carnigie Melon University suggests however, that Triple Blown is nothing more than marketing speak for thick, properly annealed, inside out work. (citation needed)

--[[User:GreymatterGlass-66|GreymatterGlass-66]] 21:55, 16 January 2007 (EST)

[[Category:Jargon]]
[[Category:Techniques]]

Torsade

2010-06-13T00:42:55Z

Moto42:

A filigree ring of white with or with out colored thread, usually with complicated patterns and form low border to mushrooms or upright bouquets.
With reference to paperweights, it is opaque glass thread wound loosely around the filigree core often found at the bse of a mushroom weight.

[[Category:Materials]]

Three Mold Pressed Glass

2010-06-13T00:42:13Z

Moto42:

A term for blown three molded glass. The molds were made of three of more hinged pieces which required an assistant to open and close the molds. Such glass usually show lines were the molds joined.

[[Category:Techniques]]

Swivel

2010-06-13T00:41:54Z

Moto42:

The apparatus of two metal tubes, one which is stationary and connected to rubber tubing, and the other fits into glass tubing. The glass can be simutaneously rotated and blown into for working, without kinking the rubber tubing.

[[Category:Tools]]

Thermal Shock

2010-06-13T00:41:44Z

Moto42:

A reference to materials shock from heat. Too rapid of heating or cooling past the strain point temperature of glass causes thermal strains and cracking.

[[Category:Jargon]]

Tessera

2010-06-13T00:41:28Z

Moto42:

Reference to squares or individual pieces of a mosaic. Also a reference to pieces of glass or other substances.

[[Category:Jargon]]

Sulphide

2010-06-13T00:40:23Z

Moto42:

A cameo or a relief medallion made from clay silica paste. They are enclosed in paperweights, bottles or glasses. Apsley Pellat was a noted English glass maker (1791-1862) utilized sulphides.

[[Category:Materials]]

Striking

2010-06-13T00:38:22Z

Moto42:

Reference to reheating glass after initial cooling so that the color and opacity form colloidal particles matures. At temperature above normal annealiong temperature, over 1100 degrees F., small particles of the glass matrix enlarge or migrate together.

[[Category:Techniques]]

Strain

2010-06-13T00:38:03Z

Moto42:

The change of deformation of a piece of glass.

The stress within a glass piece that is caused by differential expansion or contraction during heating or cooling.

Annealing reduces strains.

[[Category:Jargon]]

Spangle Glass:

2010-06-13T00:37:34Z

Moto42:

A novelty made by Hobbs-Brockunier in Wheeling, Virginia, from 1883. A spangled effect was created by rolling a parison of glass in mica flakes and broken glass, the redipped for final blowing and shaping. Another technique was to roll a parison of glass in spangle dust and blowing it without redipping.

[[Category:Techniques]]

Soffietta

2010-06-13T00:36:24Z

Moto42:

Also known as the puffer, it is a hollow metal rtube with a cone like end, often used to make goblets.
This tool continues to inflate a vessel after its removal from the blow pipe, but while still joined to the pontil.

[[Category:Tools]]

Nomad

2010-06-13T00:36:01Z

Moto42:

Known as the "[http://www.thegldg.com/forum/showthread.php?t=7983 Chuck Norris of Glassblowing]," Nomad has skills that put yours to shame. Whatever you come up with, he's done it better, and way before you ever did. He makes [[frit]] with his teeth and melts it in with his rage. It is rumored that he is such a rasta, Bob Marley wore a Nomad shirt. Multiple sources have confirmed that he is so good at [[fuming]], he has been sponsored by [[silver]]. Rumored to be the fraternal twin of [[Sinbad]].

[[Image:Nomad.jpg|350 px|center|Nomad]]
[[Image:Img225216 august-me.jpg|547 px|center|Nomad]]
See also: [[Sinbad]]

[[Category:Madmen]]

Sinbad

2010-06-13T00:35:45Z

Moto42:

Sinbad is a world-renowned glassblower famous for his ability to deftly work his craft while on a rocking pirate ship, even in a category 4 hurricane. The mystery of how he is able to continually acquire supplies, gases, tools, and materials while pillaging the seven seas has been attributed largely to piracy. He has a penchant for proper spelling and goes out of his way to avoid confrontation with anyone who shares his field of work. He is thought to be the twin of [[Nomad]].

[[Image:Sinbad.jpg|center|Sinbad]]

See also: [[Nomad]]

[[Category:Madmen]]

Shelf Primer

2010-06-13T00:34:33Z

Moto42:

Substance made of hydrated alumina and kaolin clay, binders and suspension media.
Also known as kiln wash or glass separator, it keeps glass from sticking to glass or metal forms, molds, or fusing surfaces, and mandrels in bead making.

[[Category:Tools]]

Selenium colors

2010-06-13T00:34:23Z

Moto42:

A metallic element, appears black in powder form, as a colloidal color can strike when reheated. Used with cadmium sulfide creates colors from amber orange to bright red. Soda lime glass gives a lighter rose color.

[[Category:Materials]]
[[Category:Colors]]

Satin Glass

2010-06-13T00:33:44Z

Moto42:

Hobbs, Brockunier and Company of Wheeling, W. Va., was the main producer of satin glass (Similar glass was made in England and during the same period). A dull matte finish made by submerging the vessel in a corrosive acid or in the fumes of acid. The process was synonymous with "frosting" of fancy art made in the United States during the last half of the 19th century.

[[Category:Techniques]]

Sand Blasted Glass

2010-06-13T00:33:10Z

Moto42:

Techniques first used by B. F. Tilghman of Philadelphia, in the 1860s, using compressed air to erode a surface with abrasive materials like aluminum oxide and silicon carbide. This creates a matte surface.

[[Category:Techniques]]

Rose Glass

2010-06-13T00:32:40Z

Moto42:

Also called New Bedford Rose Glass.
Glass colored with gold oxide to mimic the variegated colors of a rose petal.
Produced by the Mount Washington Glass Works, New Bedford, Mass., from the 1880s.

[[Category:Materials]]

Template:Stub

2010-06-13T00:31:09Z

Moto42:

''This article is a stub. ''
''Please improve the GLDG wiki by expanding it. ''
''The edit button is at the bottom of the page.''
[[Category:Stubs]]

Template:Stub

2010-06-13T00:30:21Z

Moto42:

''This article is a stub. 
Please improve the GLDG wiki by expanding it. 
The edit button is at the bottom of the page.''
[[Category:Stubs]]

Resist Tape

2010-06-13T00:29:45Z

Moto42:

{{Stub}}
An adhesive tape for used to stencil glass for sand blasting and other processes.

[[Category:Tools]]

Quench

2010-06-13T00:29:20Z

Moto42:

To rapidly chill a hot object in water. Used to chill or crack a surface.
A practice used to crack off glass from pipes and punties.

[[Category:Techniques]]

Pyrex

2010-06-13T00:29:04Z

Moto42:

A borosilicate glass manufactured and trademarked by Corning Glass Works. It is very heat shock resistant, having a low coefficient of expansion.

[[Category:Materials]]

Punty

2010-06-13T00:28:50Z

Moto42:

A punty also spelled puntie is the term for a rod of glass that is used as a handle to hold, support and rotate the glass object you are working on in the flame, so that you can keep your hands further away from the flame.

In beadwork a stainless steel mandrel is sometimes refered to as a punty

[[Category:Tools]]

Psi

2010-06-13T00:28:15Z

Moto42:

=='''Pounds per Square Inch'''==

Often used to rate the pressures of high pressure cylinders, and the pressure that is delivered at the torch. Note that most pressure gauges that are rated in psi, are actually [[psig]].

[[Category:Jargon]]

Powder

2010-06-13T00:27:04Z

Moto42:

== Powder ==

Powdered glass is as the name implies.

Powder glass is much finer than [[frit]] and ranges from sandy to talcum powder fine. Colored powder is very useful in applying a very delicate layer of color over a base of clear or other color, this is known as "flashing" the glass with color.

The most stunning effect done with powder is on the [[graal]] technique. Powder is essential to this process.

Glass powder, like [[frit]], is available in a range of colors and grades, and is applied much the same way. Powder should be handled with extra caution and only use powder glass if you have good [[ventilation]] in your studio, as the powder glass particles pose a serious respiratory hazard.

[[Category:Materials]]

Paraison

2010-06-12T23:34:23Z

Moto42:

Or parison.
See gather.
Contemporarily, denotes the balloon of glass at the end of a blow pipe expanding the gather of glass, the term emphasizes the first bubble.

[[Category:Jargon]]

Oxidizing flame

2010-06-12T23:30:16Z

Moto42:

A flame that uses more oxygen than propane on your torch. It is generally a cooler flame than a neutral flame and makes more of a hissing noise from your torch. Can be used to create different color effects with the glass. Ex. Amber Purple

[[Category:Tools]]

Optical Glass

2010-06-12T23:28:01Z

Moto42:

Used in microscopes and cameras, is prepared more carefully than any other glass. It must be free of bubbles, ripples, or streaks. The two main classes of optical glass are crown glass, which has low refraction and dispersion, and flint glass, which has high refraction and dispersion.

[[Category:Materials]]
[[Category:Jargon]]

Opaque

2010-06-12T23:27:30Z

Moto42:

Not transparent or translucent, but impenetrable by light.

[[Category:Jargon]]

Off Hand Glass

2010-06-12T23:25:33Z

Moto42:

US, see frigger. 
Hand made glass, often other than normal production work, such as done for pleasure.

http://www.snodgrass.net/knowledge/glassory/F%20glossary.htm#Frigger

[[Category:Jargon]]

OSHA

2010-06-12T23:22:22Z

Moto42:

Occupation Safety and Health Administration.

The government agency that establish guidelines for work place safety, such as: safe handling of hazardous materials, and safety equipment.

If ever you are wondering what the risks of working with particular chemical, product, or piece of equipment are; these are the people to talk to.

[[Category:Safety]]

Noob

2010-06-12T23:21:08Z

Moto42:

A noob is a person who is new to working with glass and does not know much about it. This person is kind of a sponge, sucking up knowledge and tips from other more seasoned glass workers. This person asks a lot of questions and usually trys to jump to more advanced techniques without mastering the basics. The noob gives back very little at first, but over time begins to share and give back some of what was so freely given by others, to other noobs just starting out.

[[Category:Jargon]]

Neck Wrap

2010-06-12T23:20:26Z

Moto42:

Also called a moile wrap.
A way of keeping heat at the neck or moile by adding a hot gather of glass around it. This can prevent cracking if the area is becoming stressed.

[[Category:Techniques]]

Murrini

2010-06-12T23:19:53Z

Moto42:

Wafers of glass cut from mosaic cane that show its cross section design.
A modern form of glass mosaic characterized by big pieces and streaks of different colored glass, rather than geometric designs of millefiori glass.

[[Category:Materials]]

Msds oxygen

2010-06-12T23:18:51Z

Moto42:

Section 1 : PRODUCT AND COMPANY IDENTIFICATION

Product name: Oxygen (Gaseous),

Supplier/ Manufacturer: Universal Industrial Gases, Inc.
2200 Northwood Avenue, Suite 3
Easton, PA 18045-2239 USA
(610) 559-7967.

Emergency phone: (610) 559-7967.

Section 2 : COMPOSITION/ INGREDIENT INFORMATION

C.A.S. CONCENTRATION % Ingredient Name OSHA PEL ACGIH TLV OSHA STEL
7782-44-7
Typically > 99
(MSDS also applies to 90 - 99%)
OXYGEN
(+N2 & Ar)
NONE NONE NONE

Section 3 : HAZARD IDENTIFICATION

Emergency Overview: Oxygen gas is colorless, odorless, non-toxic cryogenic liquid or colorless, odorless, oxidizing gas. Liquid releases will quickly vaporize to gas.
The chief physical hazard associated with releases of the gas is its oxidizing power which can greatly accelerate the burning rate for both common and exotic combustible materials. Emergency personnel must practice extreme caution when approaching oxygen releases because of the potential for intense fire.

The primary health hazard at atmospheric pressure is respiratory system irritation after exposure to high oxygen concentrations. Maintain oxygen levels in air above 19.5% and below 23.5%. While up to 50% oxygen can be breathed for more than 24 hours without adverse effects, high concentrations in open air accelerate combustion and increase the risk of fire and explosion of combustible or flammable materials.

Route of entry: Inhalation, skin and eye contact.

Effects of acute exposure
Eye contact: No adverse effects expected.

Skin contact: No adverse effects expected. .

Inhalation: May cause breathing difficulty.
Prolonged exposure to high oxygen levels (>75%) can cause central nervous system depression: signs/symptoms can include headache, dizziness, drowsiness, poor coordination, slowed reaction time, slurred speech, giddiness and unconsciousness.
May cause coughing and chest pain.
May cause lung damage.
May cause soreness of the throat.

Ingestion: Not a likely route of exposure.

Effects of chronic exposure: None known.

Reproductive effects: Oxygen deficiency during pregnancy has produced developmental abnormalities in humans and experimental animals.

Section 4 : FIRST AID MEASURES

Skin contact: None required.

Eye contact: None required.

Inhalation: RESCUERS SHOULD NOT ATTEMPT TO RETRIEVE VICTIMS OF EXPOSURE TO THIS PRODUCT WITHOUT ADEQUATE PERSONAL PROTECTIVE EQUIPMENT. At a minimum, Self-Contained Breathing Apparatus should be worn.

Remove victim(s) to fresh air, as quickly as possible. If not breathing qualified personnel should administer artificial respiration. Get medical attention.

IKeep person warm and at rest.

Ingestion: No first aid should be needed.
Not considered a potential route of exposure.

Section 5 : FIRE FIGHTING MEASURES

Flammability: Oxidizer.

Conditions of flammability: Contact with flammable materials.
Vigorously accelerates combustion.

Extinguishing media: Use appropriate extinguishing media for surrounding fire.

Special procedures: Self-contained breathing apparatus required.
Firefighters should wear the usual protective gear.
Cool fire exposed containers with water spray.
Personnel should be evacuated, if necessary, to upwind area.
Remove containers from fire area if without risk.

Auto-ignition temperature: Not applicable.

Flash point (°C), method: Not applicable.

Lower flammability
limit (% vol): Not applicable.

Upper flammability
limit (% vol): Not applicable.

Explosion Data
Sensitivity to mechanical impact: Avoid impact against container.

Explosive power: Closed containers may rupture or explode due to pressure build-up when exposed to extreme heat.
Cylinders are equipped with temperature and pressure relief devices but may still rupture under fire conditions.

Section 6 : ACCIDENTAL RELEASE MEASURES

Leak/Spill: Evacuate all non-essential personnel.
Stop leak without risk.
Wear gloves and goggles
Use a self-contained breathing apparatus.

Ventilate area. Monitor the surrounding area for Oxygen level

Section 7 : HANDLING AND STORAGE

Handling procedures and equipment: Protect system components against physical damage.
Use adequate ventilation.
Avoid inhalation.
Never work on a pressurized system.
If there is a leak, close the upstream valve, blow down the system by venting to a safe place, then repair the leak.

Storage requirements: Use storage containers, piping, valves and fittings designed for storage and distribution of Gaseous Oxygen. Protect cylinders against physical damage. Store in cool, dry, well-ventilated, fireproof area, away from flammable materials and corrosive atmospheres. Store away from heat and ignition sources and out of direct sunlight. Do not store near elevators, corridors or loading docks. Do not allow area where cylinders are stored to exceed 52°C (125°F).
Move cylinders with a suitable hand-truck. Do not drag, slide or roll cylinders. Do not drop cylinders or permit them to strike each other. Secure cylinders firmly. Leave the valve protection cap in-place (where provided) until cylinder is placed into service and after it is taken out of service.

Use designated CGA fittings and other support equipment. Do not use adapters. Do not heat cylinder by any means to increase the discharge rate of the product from the cylinder. Use check valve or trap in discharge line to prevent hazardous backflow into the cylinder. Do not use oils or grease on gas-handling fittings or equipment.

After use, close main cylinder valve. Replace valve protection cap (where provided). Mark empty cylinders "EMPTY".

Section 8 : EXPOSURE CONTROLS / PERSONAL PROTECTION

Precautionary Measures
Gloves/Type:
Wear appropriate gloves.

Respiratory/Type: NIOSH/MSHA approved respirator.

Eye/Type: As per local regulations.

Footwear/Type: Safety boots per local regulations.

Clothing/Type: Wear adequate protective clothes.

Other/Type: Eye wash facility should be in close proximity.
Emergency shower should be in close proximity.

Ventilation requirements: Mechanical ventilation is satisfactory. Ensure oxygen concentration remains above 19.5% and Carbon Dioxide concentration does not exceed 5000 ppm,
Local exhaust at points of emission preferred.

Exposure limit of material Not available.

Section 9 : PHYSICAL AND CHEMICAL PROPERTIES

Physical state: Gas

Appearance & odor: Colorless, odorless gas.

Odor threshold (PPM): Odorless.

Vapor pressure : Gas@ 70°F (21°C)

Vapor sp. gravity (air=1): 1.11 @ 70°F (21°C)

Volatiles (% by volume) 100%
Boiling point : -183°C (760 mmHg)
-297.4°F

Freezing point : -218.8°C
-361.8°F

Solubility in water (%): Slight.

Section 10 : STABILITY AND REACTIVITY

Chemical stability: Product is stable.

Conditions of reactivity: Heat

Hazardous polymerization: Will not occur.

Incompatible substances: Combustible materials.
Oils or grease.
Flammable materials.

Hazardous decomposition products: None.

Section 11 : TOXICOLOGICAL INFORMATION

LD50 of product, species & route: Not available.

LC50 of product, species & route: Not available.

Section 13 : DISPOSAL CONSIDERATIONS

Waste disposal: Gas will dissipate in air. Cylinders should be returned in the original shipping container, properly labeled, with any valve outlet plugs or caps secured and valve protection cap in place.

Section 14 : TRANSPORT INFORMATION

DOT/ TDG classification:

North American Emergency Response Guidebook Number:
For cylinder shipments:
Oxygen, compressed
UN1072
Class 2.2 (Non-Flammable Gas) with subsidiary risk 5.1 (Oxidizer)

122

Section 15 : REGULATORY INFORMATION

WHMIS classification: A, C

DSL status: Appears on DSL.

Section 16 : OTHER INFORMATION

Definitions and other useful data:

CAS #: The Chemical Abstract Service Number which uniquely identifies each constituent.

ACGIH - American Conference of Governmental Industrial Hygienists, a professional association which establishes exposure limits.

TLV - Threshold Limit Value - an airborne concentration of a substance which represents conditions under which it is generally believed that nearly all workers may be repeatedly exposed without adverse effect.

OSHA - U.S. Occupational Safety and Health Administration.

PEL - Permissible Exposure Limit - The same value as a TLV, except it is enforceable by OSHA.

IDLH - Immediately Dangerous to Life and Health - A concentration from which one can escape within 30-minutes without suffering permanent injury.

NATIONAL FIRE PROTECTION ASSOCIATION:
Health Hazard Rating Scale (Blue):
0 (material that on exposure under fire conditions would offer no hazard beyond that of ordinary combustible materials);
1 (materialsthat on exposure under fire conditions could cause irritation or minor residual injury);
2 (materials that on intense or continued exposure under fire conditions could cause temporary incapacitation or possible residual injury);
3 (materials that can on short exposure could cause serious temporary or residual injury);
4 (materials that under very short exposure could cause death or major residual injury). Flammability Hazard Rating Scale (Red):
0 (minimal hazard);
1 (materials that require substantial pre-heating before burning);
2 (combustible liquid or solids; liquids with a flash point of 38-93°C [100-200°F]);
3 (Class IB and IC flammable liquids with flash points below 38°C [100°F]);
4 (Class IA flammable liquids with flash points below 23°C [73°F] and boiling points below 38°C [100°F].
Reactivity Hazard Rating Scale(Yellow):
0 (normally stable);
1 (material that can become unstable at elevated temperatures or which can react slightly with water);
2 (materials that are unstable but do not detonate or which can react violently with water);
3 (materials that can detonate when initiated or which can react explosively with water);
4 (materials that can detonate at normal temperatures or pressures).

TOXICOLOGICAL INFORMATION:

Possible health hazards as derived from human data, animal studies, or from the results of studies with similar compounds are presented. Definitions of some terms:
LD50 -Lethal Dose (solids & liquids) which kills 50% of the exposed animals;
LC50 - Lethal Concentration (gases) which kills 50% of the exposed animals;
ppm concentration expressed in parts of material per million parts of air or water;
mg/m3 concentration expressed in weight of substance per volume of air;
mg/kg quantity of material, by weight.

REGULATORY INFORMATION:

EPA is the U.S. Environmental Protection Agency.

WHMIS is the Canadian Workplace Hazardous Materials Information System.

DOT and TC are the U.S. Department of Transportation and the Transport Canada, respectively, which assign DOT and TDG (Transportation of Dangerous Goods) identification numbers, hazard classifications, and proper shipping name and shipping label information. This material is hazardous as defined by 49 CFR 172.101 of the US Department of Transportation and Dangerous Goods as defined by Transport Canada Transportation of Dangerous Goods Regulations.

USE OF THIS INFORMATION:
Universal Industrial Gases, Inc. offers this information to customers, employees, contractors, and the general public to promote the safe use of this product through awareness of product hazards and safety information. Customers and others who use or transport or sell this product to others should: 1) Disseminate this information internally to all workplace areas, employees, agents and contractors likely to encounter this product; 2) Provide supplemental hazards awareness, safety information, operation and maintenance procedures to the workplace areas and employees, agents and contractors likely to encounter this product; 3) Furnish this information to all their customers who purchase this product; and 4) Ask each purchaser or user of the product to notify its employees and customers of the product hazards and safety information.

DISCLAIMER OF EXPRESSED AND IMPLIED WARRANTIES:
Universal Industrial Gases, Inc. has taken reasonable care in preparing this document, however, since the use of this information and the conditions of use of the product are not within the control of Universal Industrial Gases, Inc., it is the user's obligation to determine the conditions of safe use of this product. The information in this document is offered with no warranties or representations as to accuracy or completeness and it is the responsibility of each individual to determine the suitability of the information for their particular purpose(s).

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[[Category:Tools]]
[[Category:MSDS]]
[[Category:Chemicals]]

Moil

2010-06-12T23:17:04Z

Moto42:

That portion of a gather surrounding the blowpipe, or punty, supporting the glass on the end. 
Waste glass left on a blow pipe or pontil. It is knocked off, into a collecting bin as cullet.
[[Category:Jargon]]

Millefiori, Millefiore

2010-06-12T23:15:38Z

Moto42:

Italian means a thousand flowers.
A mosaic of glass that is blown and embedded with thin sliced sections of multicolored glass canes to form concentric bands and flower like designs.

[[Category:Materials]]

Marver

2010-06-12T23:13:53Z

Moto42:

French, corruption of the term marbre, "marble."
The flat polished, stone, like marble, or metal surface onto which the hot glass gather is pressed and rolled into shape. Also, adornments such pieces of glass or gold leaf can be applied by marving.
Also, to marver is to shape glass by rolling it on a marvering surface.

[[Category:Tools]]