general_organic_solvent_sop
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general_organic_solvent_sop [2021/02/26 18:07] – furst | general_organic_solvent_sop [2023/01/18 18:59] (current) – bdincau | ||
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Type of SOP: 0 Process 0 Hazardous Chemical 1 Hazard Class | Type of SOP: 0 Process 0 Hazardous Chemical 1 Hazard Class | ||
- | **HAZARD OVERVIEW** | + | **1. HAZARD OVERVIEW** |
Flammable and combustible organic solvents are amongst the most dangerous chemicals in the lab. A measure of how ignitable a particular solvent is the flashpoint ; defined as the lowest temperature at which a material can form an ignitable mixture with air and produce a flame when a source of ignition is present. | Flammable and combustible organic solvents are amongst the most dangerous chemicals in the lab. A measure of how ignitable a particular solvent is the flashpoint ; defined as the lowest temperature at which a material can form an ignitable mixture with air and produce a flame when a source of ignition is present. | ||
- | Flammable liquids (flash point < 100oF) are divided into three classes: | ||
+ | The international symbol (Globally Harmonized System) for a flammable liquids/ | ||
- | Class Flash Point Boiling Point Examples | + | Flammable liquids (flash point < 100oF) are divided into three classes: |
- | IA Below 73°F Below 100 °F Ethyl Ether | + | {| style="" |
- | IB Below | + | |+ Flammable Liquid Classes |
- | IC At or above 73°F and Isopropanol, | + | | |
- | below 100°F | + | Class |
+ | | | ||
+ | Flash Point | ||
+ | | | ||
+ | Boiling Point | ||
+ | | | ||
+ | Example | ||
+ | |- | ||
+ | | | ||
+ | IA | ||
+ | | | ||
+ | Below 73°F | ||
+ | | | ||
+ | Below 100 °F | ||
+ | | | ||
+ | Ethyl Ether | ||
+ | |- | ||
+ | | | ||
+ | IB | ||
+ | | | ||
+ | Below 73°F | ||
+ | | | ||
+ | At or above 100 °F | ||
+ | | | ||
+ | Acetone, Benzene, Toluene | ||
+ | |- | ||
+ | | | ||
+ | IC | ||
+ | | | ||
+ | At or above 73°F | ||
+ | | | ||
+ | Below 100°F | ||
+ | | | ||
+ | Isopropanol, | ||
+ | |} | ||
Combustible liquids (flash point > 100oF) are divided into three classes: | Combustible liquids (flash point > 100oF) are divided into three classes: | ||
- | Class Flash Point Examples | + | {| style="" |
- | + | |+ Combustible liquids (flash point > 100oF) | |
- | II | + | | |
- | 100-139 °F | + | Class |
+ | | | ||
+ | Flash Point | ||
+ | | | ||
+ | Example | ||
+ | |- | ||
+ | | | ||
+ | II | ||
+ | | | ||
+ | 100-139 °F | ||
+ | | | ||
Acetic acid, cyclohexane, | Acetic acid, cyclohexane, | ||
- | + | |- | |
- | IIIA | + | | |
- | 140-199 °F | + | IIIA |
+ | | | ||
+ | 140-199 °F | ||
+ | | | ||
Cyclohexanol, | Cyclohexanol, | ||
- | + | |- | |
- | IIIB | + | | |
+ | IIIB | ||
+ | | | ||
200 °F or above | 200 °F or above | ||
+ | | | ||
Formalin and vegetable oil | Formalin and vegetable oil | ||
- | + | |} | |
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
- | + | ||
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A particular organic solvent may have other hazards beyond their flammability. | A particular organic solvent may have other hazards beyond their flammability. | ||
- | The international symbol (Globally Harmonized System) for a flammable liquids/ | ||
- | |||
- | Diethyl ether initiated fire | ||
- | 2. PERSONAL PROTECTIVE EQUIPMENT (PPE) | + | |
+ | ** 2. PERSONAL PROTECTIVE EQUIPMENT (PPE) ** | ||
For routine solvent cleaning using IPA, Methanol, Ethanol or Acetone latex gloves are recommended. Nitrile gloves are acceptable for light cleaning of samples where solvent contact is trivial. | For routine solvent cleaning using IPA, Methanol, Ethanol or Acetone latex gloves are recommended. Nitrile gloves are acceptable for light cleaning of samples where solvent contact is trivial. | ||
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In general, workers who use flammable liquids will be issued a free fire-resistant Nomex lab coat via the LHAT process. | In general, workers who use flammable liquids will be issued a free fire-resistant Nomex lab coat via the LHAT process. | ||
- | 3. ENGINEERING/ | + | **3. ENGINEERING/ |
All chemicals should be transferred and used in an annually certified laboratory chemical fume hood with the sash at the certified position or lower. | All chemicals should be transferred and used in an annually certified laboratory chemical fume hood with the sash at the certified position or lower. | ||
• Fume Hood Usage Guide | • Fume Hood Usage Guide | ||
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• Special Ventilation: | • Special Ventilation: | ||
- | 4. SPECIAL HANDLING PROCEDURES AND STORAGE REQUIREMENTS | + | **4. SPECIAL HANDLING PROCEDURES AND STORAGE REQUIREMENTS** |
Use in an area that is properly equipped with a certified eye wash and safety shower that is available within ten seconds of travel. | Use in an area that is properly equipped with a certified eye wash and safety shower that is available within ten seconds of travel. | ||
Store in a tightly closed, labeled container and in a cool, dry, well-ventilated area. Segregate from incompatible materials. | Store in a tightly closed, labeled container and in a cool, dry, well-ventilated area. Segregate from incompatible materials. | ||
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- | 5. SPILL AND INCIDENT PROCEDURES | + | **5. SPILL AND INCIDENT PROCEDURES** |
See directions under the “Chemical Incident” and “Medical Emergency” tabs of the UCSB Emergency Information Flipchart – should already be posted in all labs. | See directions under the “Chemical Incident” and “Medical Emergency” tabs of the UCSB Emergency Information Flipchart – should already be posted in all labs. | ||
For those that routinely use flammable liquids, it is strongly recommended that they attend the live version of the EH&S Fundamentals of Laboratory Safety class, where hands-on fire extinguisher training is conducted. | For those that routinely use flammable liquids, it is strongly recommended that they attend the live version of the EH&S Fundamentals of Laboratory Safety class, where hands-on fire extinguisher training is conducted. | ||
- | 6. DECONTAMINATION | + | **6. DECONTAMINATION** |
Wear proper PPE, decontaminate equipment and bench tops using [soap and water]. | Wear proper PPE, decontaminate equipment and bench tops using [soap and water]. | ||
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No prior approval is required for solvent cleaning of samples or lab test fixtures. | No prior approval is required for solvent cleaning of samples or lab test fixtures. | ||
- | 9. DESIGNATED AREA | + | **9. DESIGNATED AREA** |
When possible solvent-related work should be carried out in the fume hood given the volatility and flammability of most solvents. When this is not possible, cleaning test fixtures or samples on the optical tables, for example, make sure that there are no ignition sources nearby. | When possible solvent-related work should be carried out in the fume hood given the volatility and flammability of most solvents. When this is not possible, cleaning test fixtures or samples on the optical tables, for example, make sure that there are no ignition sources nearby. | ||
- | 10. SAFETY DATA SHEETS and OTHER REFERENCES | + | **10. SAFETY DATA SHEETS and OTHER REFERENCES** |
Online SDS can be found at: http:// | Online SDS can be found at: http:// | ||
Prudent Practices in the Laboratory, 2011, see Secs. 4.D and 6.F for flammable liquids http:// | Prudent Practices in the Laboratory, 2011, see Secs. 4.D and 6.F for flammable liquids http:// | ||
- | 11. LAB-SPECIFIC INFORMATION (required) | + | **11. LAB-SPECIFIC INFORMATION (required)** |
In general solvents are used for simple cleaning of samples and tooling. Squirt bottles of solvents are stored in the white bin in the fume hood. These bottles can be refilled from the large bottles stored under the fume hood. | In general solvents are used for simple cleaning of samples and tooling. Squirt bottles of solvents are stored in the white bin in the fume hood. These bottles can be refilled from the large bottles stored under the fume hood. | ||
general_organic_solvent_sop.1614362859.txt.gz · Last modified: 2021/02/26 18:07 by furst