Date post: | 21-Jan-2015 |
Category: |
Health & Medicine |
Upload: | magid |
View: | 431 times |
Download: | 0 times |
Donald F Groce Showa Best Glove Inc
Is this the right glove? Needs Dexterity
Not Much Exposure
Can’t Really Wear a Thick
Glove
Is a Thin Glove Enough
Protection?
Would a Thicker Glove be Clumsy and
Unwieldy?
Needs Maximum Protection
Heavy Exposure
May be Unknowns
Present
Exposure Could be Life Threatening
Make Sure the Choice is
Clear
There are Hundreds of Chemicals How to Choose
Gloves
What Polymer is Safest
How Long Will I be Wearing
the glove?
How Much Exposure?
How to find the Answer On-
Line?
Sometimes the Hazards are Not Life Threatening
What Glove Should I use for
Limited Exposure?
What glove Should I use for
dilutions of chemicals?
What is the What is the Difference Difference Difference Between Between Between
these these these Polymers?Polymers?Polymers?
How to How to How to Choose the Choose the Choose the Choose the Choose the right gloveChoose the Choose the right gloveright glove
What What standards standards standards prove the prove the prove the
safety of the safety of the safety of the glove?
safety of the safety of the safety of the safety of the glove?glove?
Dilute Acids and CausticsDilute Acids and Caustics
BleachBleach
Aqueous ChemicalsAqueous Chemicals
DetergentsDetergents
Crystalline SolidsCrystalline Solids
Janitorial ChemicalsJanitorial Chemicals
Do NOT Use Latex with Fuels!
The ECONOMY Glove
Oil Spill Clean Up
Limited Chemical Protection
Long wearing
PVC is good for multiple hazards
The ACID GloveThe ACID Glove
Petrochemicals or FuelsPetrochemicals or Fuels
Aqueous ChemicalsAqueous Chemicals
Acids & CausticsAcids & Caustics
AcetoneAcetone
MEKMEK
Methylene ChlorideMethylene Chloride
Don’t Use forDon’t Use for
Neoprene protection at Neoprene protection at Neoprene protection at an economical price
Neoprene protection at an economical pricean economical price
Less expensive than Less expensive than 100% Neoprene gloves100% Neoprene gloves100% Neoprene gloves
Neoprene over Natural Neoprene over Natural Neoprene over Natural Rubber Economy GloveNeoprene over Natural Rubber Economy GloveRubber Economy Glove
Some Hydrocarbons, Aromatic
Hazmat Incidents
Fuels
Hydrocarbons aliphatic
Poultry Processing
Janitorial Replacement for Latex
Versatile: Also used in Food Service
Oil Spills
The Fuel Glove for Petrochemical
NOT Gasoline or FuelsNOT Gasoline or Fuels
Nerve Gases (WMD)Nerve Gases (WMD)
GasesGases
KetonesKetones
NOT for Ketones (Acetone or MEK)NOT for Ketones (Acetone or MEK)
Benzene, Toluene & XyleneBenzene, Toluene & Xylene
Hydrocarbons AROMATICHydrocarbons AROMATIC
Hydrocarbons aliphaticHydrocarbons aliphatic
HALOGENATED CompoundsHALOGENATED Compounds
Sometimes not comfortable and lack touch Sometimes not comfortable and lack touch sensitivity
Sometimes not comfortable and lack touch Sometimes not comfortable and lack touch sensitivitysensitivity
Resists Aromatic ChemicalsResists Aromatic Chemicals
Resists AcetoneResists Acetone
Resists Methylene ChlorideResists Methylene Chloride
Most resistant to different mixturesMost resistant to different mixtures
What is Chemical Resistance?
Permeation
Visible changeVisible change
Weight changeWeight change
Swelling or DiscolorationSwelling or Discoloration
Dissolving or Delaminating of Dissolving or Delaminating of CoatingDissolving or Delaminating of Dissolving or Delaminating of CoatingCoating
ASTM F739-07 Heavy Exposure
ASTM F1383-07 Intermittent Contact
EN 374 European Chemical Resistance Standard
Polymer Membrane
Diffusion
Solvent Molecules
Desorption or Exposure
Diffusion through Polymer
Adsorption or Uptake
Three Steps
Polymer Membrane
Diffusion
Solvent Molecules
Most useful permeation term
How long till I am exposed?
Where Rate >0.1 µg/cm2/min
Time in Minutes
Polymer Membrane
Diffusion
Polymer Membrane
More Layers = Even Longer Breakthrough More Layers = Even Longer Breakthrough Time
More Layers = Even Longer Breakthrough More Layers = Even Longer Breakthrough TimeTime
Longer Breakthrough TimeLonger Breakthrough Time
Pass through Second LayerPass through Second Layer
Molecules must build up in Air LayerMolecules must build up in Air Layer
Air Layer between LayersAir Layer between Layers
Layering GlovesLayering Gloves
Typical Open Loop Typical Open Loop Configuration
Typical Open Loop Typical Open Loop ConfigurationConfiguration
Test Test ChemicalChemicalChemical
Test Test Gloves Gloves Gloves
MaterialGloves Gloves
MaterialMaterial
ASTM Normalized Breakthrough Time = 150 minutes Where Rate > 0.1 µg/cm2/min
Steady State Permeation Rate
Performance Levels EN 374 and ANSIPerformance Levels EN 374 and ANSI
Performance Level
Breakthrough Time in Minutes
0 < 10 minutes
1 > 10 minutes
2 > 30 minutes
3 > 60 minutes
4 > 120 minutes
5 > 240 minutes
6 > 480 minutes
On-Line Databases
• www.chemrest.com
Part Two:
Go to www.chemrest.com
www.chemrest.com
Select from hundreds of chemicals
Search by Chemical Name
Search by CAS Number
Search for Perchloroethylene
Results:
Nitri-Solve® 727 and 730
Viton 890 and 892
ANSI Level 6 >480 Minutes is Displayed
These Gloves Do Not Work
Not a Good Choice
Gloves Become Swollen and Tear Readily
Degradation shows severe changes in minutes
Intermittent Exposure Data
Even for Limited Exposure, the Choices are Very Limited.
ANSI Level 1 N-DEX Not Recommended
Select the same gloves as Heavy Exposure.
ASTM Testing
F739-07 Total Immersion 8 hour test Worst Case
Scenario
F1383-07 Intermittent
Contact 4 hour test
May mimic real life
situations
Options for Exposure
Splash Exposure
Problem: A customer is using a solvent to remove sticky glue.
MSDS Shows the main ingredient is Hexane
Go to www.chemrest.comSelect a glove for use with Hexane
Problem: Using previous results found, the customer has requested documentation.
Please save the information from www.chemrest.com as a PDF
Go through steps to email to customer
Problem: Same Customer
Their exposure is limited or intermittent.
Show the Intermittent Data to show what other gloves may work for Limited Contact in www.chemrest.com
Problem: Same Customer
The Customer wants documentation of the Intermittent Data.
Make a PDF of the data and send to the customer using email using www.chemrest.com
Problem: Same Customer
The Customer wants a product sheet for Nitri Solve 730 gloves
Find the Product Sheet PDF and send to the customer using email using www.chemrest.com
Problem: Same Problem Customer wants three things:
a product sheet for Nitri Solve 730 gloves
They also want documentation of the Heavy Exposure Data.
They also want documentation of Intermittent Data.
Make one PDF of all of the desired data and send to the customer using email using www.chemrest.com
Protecting Hands
That is what we do Best!