Material safety data sheet for isopropanol: what every employer needs to know

Last updated 2026-07-09

What is the material safety data sheet for isopropanol?

The material safety data sheet for isopropanol (now officially called a Safety Data Sheet, or SDS, under OSHA's 2012-revised Hazard Communication Standard) is a standardized 16-section document. It tells you what the chemical is, what it does to the body, how it behaves in a fire, and how to store, handle, and dispose of it. ^[1]

OSHA aligned with the United Nations' Globally Harmonized System of Classification and Labelling (GHS) in 2012, which is why older documents say "Material Safety Data Sheet" and newer ones say "Safety Data Sheet." The content is largely the same. The 16-section format became mandatory for chemical manufacturers and importers on June 1, 2015. ^[1] Workers and employers still say MSDS or SDS and mean the same file.

For isopropanol (CAS number 67-63-0, sold as IPA, isopropyl alcohol, 2-propanol, and rubbing alcohol), the SDS is not filler paperwork. It's the record of every decision you make about ventilation, PPE, spill response, and emergencies. The chemical is everywhere: cleaning stations, labs, print shops, auto bays, medical offices, electronics assembly. Because it's so common, people underrate it. Don't.

What are the key physical and chemical properties on the isopropanol SDS?

Section 9 of the SDS lists physical and chemical properties. For isopropanol, a handful of numbers drive almost every day-to-day safety call.

Property	Value
CAS Number	67-63-0
Flash point (closed cup)	12°C (53°F)
Auto-ignition temperature	399°C (750°F)
Flammable limits in air (LEL/UEL)	2.0% / 12.7%
Boiling point	82.5°C (180.5°F)
Vapor pressure at 20°C	33 hPa
Vapor density (air = 1)	2.1
Odor threshold	~22 ppm
OSHA PEL (TWA)	400 ppm
ACGIH TLV-TWA	200 ppm
ACGIH STEL	400 ppm

Sources: OSHA ^[2], ACGIH ^[3], NIOSH Pocket Guide ^[4], NIOSH ICSC ^[12]

The flash point of 12°C (53°F) is the number that catches employers off guard. A warehouse on a summer day sits at 25 to 35°C. Your IPA is already well above its flash point at room temperature, so an ignitable vapor-air mixture is present the moment the container is open. That vapor is heavier than air (vapor density 2.1), so it sinks to the floor and drifts toward motors, pilot lights, and static discharges you can't see.

The gap between the OSHA PEL (400 ppm TWA) and ACGIH's recommended TLV (200 ppm TWA) matters if you run a best-practice industrial hygiene program. OSHA's PEL for IPA dates to 1971 and has never been updated. Many industrial hygienists treat the ACGIH value as the real target. ^[3]

The odor threshold sits around 22 ppm, so workers smell IPA long before it reaches dangerous levels. That's a genuine early warning, unlike odorless killers like carbon monoxide. It's still not a substitute for air monitoring.

What health hazards does the isopropanol SDS describe?

Section 2 (GHS hazard classification) and Section 11 (toxicological information) cover the health effects. Isopropanol is classified as a Flammable Liquid Category 2 and a Specific Target Organ Toxicant (STOT) for single exposure at high concentrations, hitting the central nervous system first. ^[4]

Acute effects sort by exposure route:

• Inhalation: above roughly 400 ppm, workers get headache, dizziness, drowsiness, and loss of coordination. At very high concentrations (NIOSH sets the IDLH at 2,000 ppm ^[4]), unconsciousness and respiratory depression are possible.
• Skin contact: IPA is a dermal irritant and a defatting agent. Repeated or prolonged contact strips the skin's lipid barrier, causing cracking, dryness, and dermatitis. Absorption through intact skin is low but not zero.
• Eye contact: vapor and liquid both cause irritation, tearing, and redness. Splashes need immediate flushing.
• Ingestion: IPA metabolizes to acetone, not to the formic acid or formaldehyde that make methanol so dangerous. Swallowing it causes CNS depression, nausea, and vomiting. Toxic, yes. As acutely lethal as methanol, no.

Repeated inhalation below the PEL hasn't been linked to permanent organ damage in the published literature, partly because IPA's widespread use predates systematic long-term cohort studies. NIOSH flags IPA as an occupational hazard but does not classify it as a carcinogen under its current evidence review. ^[4]

Reproductive data is thin. Most manufacturers' SDSs note insufficient evidence to classify IPA as a reproductive toxicant under GHS criteria. Minimizing occupational exposure during pregnancy is still the prudent call.

One practical note. People lump isopropanol in with ethanol in casual shop talk. They aren't the same. IPA is roughly twice as toxic as ethanol by ingestion and produces acetone as a metabolite, which can throw a false positive on some acetone screening tests.

What fire and explosion data does the SDS give you, and why does it matter for your workplace?

Section 5 (firefighting) and Section 9 (physical properties) together drive your fire prevention decisions. Isopropanol is a DOT Flammable Liquid, UN 1219, Packing Group II. ^[5]

The flash point of 12°C is the core hazard. OSHA's flammable liquids standard, 29 CFR 1910.106, requires flammable liquids with flash points below 100°F (38°C) to be kept in approved flammable-storage cabinets, with quantities outside storage rooms held to what one workday needs in a safety can. ^[6] Plenty of employees using IPA in spray bottles and wipes are covered by this standard and have no idea.

Extinguishing agents: CO2, dry chemical, and alcohol-resistant foam all work. A straight water stream just spreads burning liquid. Water mist or fog cools containers and dilutes vapor, which is why water shows up on some SDSs as a secondary option.

Static electricity is a real ignition source with IPA. Transferring it from a drum to a smaller container without bonding and grounding is asking for a fire. OSHA's 29 CFR 1910.106(e)(6)(ii) covers bonding and grounding for flammable liquid transfer. ^[6]

Ventilation comes out of Section 8 (exposure controls). Use general dilution ventilation for small-scale work and local exhaust ventilation (LEV) for anything that generates real vapor, such as spray application, heated dipping baths, or large-volume cleaning. NIOSH recommends holding airborne IPA below 400 ppm, and ideally below 200 ppm, through engineering controls before you reach for respirators. ^[4]

Any workplace using IPA in quantities over one gallon in a process area needs a written hazard communication program under 29 CFR 1910.1200.

What PPE does the isopropanol SDS require?

Section 8 of the SDS covers personal protective equipment. What you actually need depends on the task and the concentration, but the isopropanol SDS generally points to the following.

Skin protection: Nitrile gloves (4 mil minimum) give acceptable short-term protection. Natural rubber latex resists IPA poorly and isn't preferred. For repeated or prolonged contact, go to thicker nitrile or butyl rubber. Safety glasses with side shields are the floor for general handling; use chemical splash goggles for pouring or bulk transfer.

Eye and face protection: Chemical splash goggles anytime liquid splash is possible. Add a face shield over goggles for bulk handling.

Respiratory protection: In well-ventilated areas where air monitoring confirms concentrations stay below 200 to 400 ppm, routine use needs no respirator. When concentrations exceed the PEL, or nobody has monitored the air, a half-face air-purifying respirator with organic vapor (OV) cartridges is appropriate. OSHA's respiratory protection standard, 29 CFR 1910.134, requires a written respirator program, a medical evaluation, and fit-testing before anyone wears a tight-fitting respirator. ^[7]

Body protection: Chemical-resistant apron for bulk handling. Standard work clothing for routine wipe-downs.

29 CFR 1910.132 requires a written PPE hazard assessment before you require or hand out PPE. Document it with the supervisor's name and the date. The hazard communication hub shows how the SDS feeds that assessment.

A quick word on gloves. The SDS line "nitrile gloves" doesn't name a thickness or a breakthrough time. For immersion or prolonged contact, ask your glove supplier for the specific chemical resistance data for IPA at the thickness you're buying. Most manufacturers publish permeation data by chemical, and it's free.

What do sections 6 and 13 of the SDS say about spills and disposal?

Section 6 (accidental release measures) and Section 13 (disposal considerations) are the two sections people skip most in daily practice.

For an isopropanol spill, the SDS says to kill ignition sources first (no obvious flame counts too, including static from nylon clothing and sparking hand tools), ventilate the area, and contain the spill with dry absorbent such as sand, vermiculite, or a commercial spill absorbent. Don't grab paper towels and drop them in the regular trash. IPA-soaked absorbents are a fire hazard themselves and belong in a closed metal waste container rated for flammable waste, kept away from general trash.

For large spills (the SDS usually defines these as quantities that could push vapor above the LEL in the area), evacuate and call the fire service. Spills that reach a drain, storm sewer, or surface water can trigger EPA reporting under 40 CFR Part 302, though IPA itself isn't on the CERCLA hazardous substance list with a reportable quantity. Local municipal codes may still require notification for drain releases.

Disposal: IPA waste is generally a flammable hazardous waste (EPA waste code D001) because it fails the ignitability characteristic under 40 CFR 261.21. ^[8] IPA contaminated with other chemicals (acetone, other solvents) can carry additional waste codes. Small-quantity generators and large-quantity generators face different timelines under RCRA. A short call to your state environmental agency pays off here, because state rules are sometimes stricter than federal.

The practical version: keep a labeled, lidded, metal flammable waste container at every high-use IPA station. Empty it on a schedule through a licensed hazardous waste contractor. For most small shops, that's the entire Section 13 program.

What does OSHA require employers to do with the isopropanol SDS?

The legal backbone is 29 CFR 1910.1200, OSHA's Hazard Communication Standard (HazCom 2012). ^[1] It puts four SDS duties on you:

1. Get an SDS for every hazardous chemical before it arrives, or as fast as possible in an emergency. 2. Keep SDSs accessible to employees during their shifts. "Accessible" means no barriers: not locked in a drawer, not behind a password nobody has, not stuck in a supervisor's office during the night shift. 3. Retain SDSs for the duration of employment plus 30 years for any chemical that could cause long-term health effects, under the records rule at 29 CFR 1910.1020. ^[9] 4. Train workers to read and use the SDS, including what each section means and how to find the sheet for chemicals they touch.

OSHA's HazCom standard states: "The employer shall maintain in the workplace copies of the required safety data sheets for each hazardous chemical, and shall ensure that they are readily accessible during each work shift to employees when they are in their work area(s)." ^[1] That's the verbatim requirement.

Digital SDS management is explicitly allowed as long as workers reach the sheets without barriers. A wall-mounted tablet with SDS software, a shared drive on the shop computer, a paper binder: all fine. A system that forces a worker to ask a manager to pull up the file fails the accessibility test.

If an OSHA inspector asks to see the isopropanol SDS, you should produce it in under two minutes. If you can't, you've handed them a HazCom citation under 1910.1200. As of 2024, the general-industry penalty for a serious HazCom violation runs $1,190 to $16,550 per violation, with willful violations up to $165,514. ^[10]

Small employers building their first chemical program usually find it easier to start from a written HazCom template that already includes SDS management. SafetyFolio's safety program generator walks you through a HazCom-compliant written program in about 15 minutes, covering SDS management, chemical inventory, labeling, and training records.

How does the isopropanol SDS compare to other common solvents like toluene and water?

Plenty of shops run isopropanol alongside toluene and keep a water SDS on file because some jurisdictions ask for one even on non-hazardous material. Seeing them side by side helps you spend control money where it counts.

Property	Isopropanol (IPA)	Toluene	Water
CAS Number	67-63-0	108-88-3	7732-18-5
Flash point	12°C (53°F)	4°C (40°F)	None
OSHA PEL (TWA)	400 ppm	200 ppm	N/A
ACGIH TLV-TWA	200 ppm	20 ppm	N/A
IDLH (NIOSH)	2,000 ppm	500 ppm	N/A
GHS Flammable class	Category 2	Category 2	Non-flammable
CNS hazard	Moderate	Significant	None
Reproductive hazard	Insufficient data	Possible (ACGIH A4)	None
Carcinogen classification	Not listed	IARC Group 3	Not listed

Sources: NIOSH Pocket Guide ^[4], NIOSH Toluene ^[13], OSHA HazCom ^[1], ACGIH ^[3]

Toluene carries a far tighter exposure limit than IPA, especially under ACGIH (20 ppm TLV against 200 ppm for IPA). The material safety data sheet of toluene and the toluene safety data sheet are the same document under different legacy names, and both reflect toluene's higher toxicity and stronger reproductive concerns. Toluene's SDS lists it as an aspiration hazard and a suspected reproductive toxicant, neither of which applies to IPA. Run both chemicals and toluene earns stricter air monitoring and more conservative PPE.

The material safety data sheet of water exists mostly because HazCom technically requires an SDS for hazardous chemicals, and water doesn't meet the standard's definition of a hazardous chemical. Manufacturers ship a water SDS for completeness, or for processes that use water at high temperature or pressure where it poses physical hazards. For standard work, the water SDS is paperwork, not protection.

For how to read and file any SDS, the hcl safety data sheet article walks the 16-section format using hydrochloric acid. The structure is identical for every chemical under GHS.

What training do employees need on the isopropanol SDS?

Training rules live in 29 CFR 1910.1200(h). ^[1] OSHA requires training at initial assignment and whenever a new chemical hazard enters the work area. The HazCom standard sets no fixed refresher interval, though the general duty clause and common industry practice push toward an annual refresher.

For isopropanol, training should cover:

• What the 16 SDS sections mean and how to find the sheet.
• IPA's specific hazards: flammability, CNS effects at high concentrations, skin defatting from repeated contact.
• How to use the PPE the employer picked for IPA tasks.
• Emergency procedures: overexposure (move to fresh air, call 911 if symptomatic), spill (kill ignition sources, use provided absorbent, dispose in the flammable waste container).
• The labeling system, including GHS pictograms. For IPA, that's the flame (flammable) and the exclamation mark (irritant, CNS effects).

OSHA does not require a standalone IPA class. Broader HazCom training that covers every chemical in the workplace satisfies the standard, as long as it addresses IPA's specific hazards and workers can show they can use the SDS. Keep documentation of each session: names, date, topics, trainer.

Supervisors and safety coordinators who want a deeper base in chemical hazard management can take an OSHA 30 course, which covers hazard communication inside the general-industry curriculum. The OSHA training article breaks down what's federally required versus merely recommended.

What should be in a written hazard communication program for workplaces that use isopropanol?

29 CFR 1910.1200(e) requires any employer with a hazardous chemical on site to keep a written HazCom program, available to employees and OSHA inspectors on request. ^[1] There's no size exemption.

A HazCom program for a workplace using isopropanol has to cover:

Chemical inventory: a list of every hazardous chemical in the workplace, IPA included, matched to its SDS. The inventory is the index; the SDSs are the detail.

SDS management procedure: where SDSs live, how workers reach them, what happens when a new chemical arrives, and how you handle a missing or outdated sheet.

Labeling: every IPA container must carry a GHS label with the product identifier, hazard pictograms, signal word ("Danger" for IPA), hazard statements, and precautionary statements. Portable containers an employee fills for immediate use in their own work area are exempt, but any container left for another shift or worker must be labeled.

Training plan: how, when, and by whom workers get HazCom training.

Non-routine tasks: procedures for jobs outside daily training, like cleaning an IPA storage tank or handling a large spill.

Contractor coordination: if outside contractors work near your IPA, hand them the SDS and brief them on precautions. They owe you the same for whatever they bring in.

Writing this from scratch eats time most small employers don't have. SafetyFolio's safety program generator produces a compliant written HazCom program tailored to your workplace in about 15 minutes, including SDS management and chemical inventory format.

Workers who need the bigger picture on why OSHA exists and what it can and can't do will get it from the what does OSHA stand for and OSHA articles.

What do you do after an isopropanol exposure incident?

Section 4 (first aid measures) of the SDS is your immediate guide. For isopropanol:

• Inhalation: move the person to fresh air. If breathing is hard or they're unconscious, call 911 and give supplemental oxygen if you're trained. Don't leave them alone.
• Skin contact: strip contaminated clothing right away and wash the skin with soap and water for at least 15 minutes. Put the clothing in a sealed bag, not the regular laundry, where it can off-gas or ignite in a dryer.
• Eye contact: flush with water for at least 15 minutes, holding the eyelid open. Get medical evaluation if irritation persists.
• Ingestion: do not induce vomiting. Call Poison Control (1-800-222-1222 in the US) immediately. IPA ingestion produces acetone metabolites that can cause prolonged CNS depression.

Once the immediate response is done, your job shifts to documentation and analysis. Any work-related injury or illness that leads to medical treatment beyond first aid, lost work time, restricted duty, or loss of consciousness must go on the OSHA 300 log under 29 CFR 1904. ^[11] An IPA inhalation that sends a worker to the ER is recordable and probably reportable.

A good incident report captures the exposure route, the concentration (if you monitored the air), the PPE in use, and the medical outcome. That report becomes the base for corrective action: did ventilation fail, was the PPE wrong, was the SDS training thin?

For how chemical exposure incidents tie into OSHA's injury recording rules, read 29 CFR 1904 and OSHA's recordkeeping guidance at osha.gov.

How do you find a current, reliable SDS for isopropanol?

The isopropanol SDS should arrive from your supplier with each shipment or purchase, as required by 29 CFR 1910.1200(g). ^[1] If your supplier skips it, request it directly or pull it from the supplier's website.

For a free, authoritative version, NIOSH's International Chemical Safety Cards (ICSCs) and the NIOSH Pocket Guide to Chemical Hazards both carry the core hazard data for isopropanol. ^[4][12] The CDC/NIOSH site at cdc.gov/niosh publishes the Pocket Guide, which lists exposure limits, IDLH, and first aid. It isn't a full GHS SDS, but it's solid reference data.

Several suppliers publish free SDS libraries. Sigma-Aldrich (MilliporeSigma), Fisher Scientific, and VWR each run searchable databases where you can pull the current GHS SDS for IPA in under a minute. Always grab the SDS that matches your exact product. A 70% isopropyl alcohol solution has different flash point and vapor pressure data than 99% anhydrous IPA, and the SDS reflects that.

Check the revision date on anything you download. A GHS SDS carries its revision date in Section 16. If your sheet is pre-2015 and still in the old 8-section ANSI/MSDS style, it doesn't meet OSHA's current requirement for a 16-section GHS SDS on the manufacturer side, though enforcement generally tolerates an older sheet while a product's SDS is being updated. When in doubt, request the current version from the manufacturer.

Never run a generic internet SDS without confirming it matches your product's concentration and formulation. An SDS for 99% IPA does not cover a 70% IPA product cut with 30% water, and the hazard differences are real.

Frequently asked questions

What is the OSHA PEL for isopropanol?

OSHA's permissible exposure limit for isopropanol is 400 ppm as an 8-hour time-weighted average (TWA), set under 29 CFR 1910.1000 Table Z-1. ACGIH recommends a tighter TLV of 200 ppm TWA with a 400 ppm STEL. NIOSH sets the IDLH (immediately dangerous to life and health) at 2,000 ppm. Most industrial hygienists target 200 ppm or below as the working ceiling.

Is isopropanol listed as a carcinogen on its SDS?

No. Isopropanol is not classified as a carcinogen by OSHA, IARC, NTP, or ACGIH under current evidence. SDS Section 11 should say so directly. Toluene, by contrast, sits in IARC Group 3 (not classifiable as to carcinogenicity), and some aromatic solvents like benzene are confirmed carcinogens, which is exactly why you read the specific SDS for each chemical.

Does every employer have to keep an SDS for isopropanol even if they only use small amounts?

Yes. 29 CFR 1910.1200 applies to any amount of a hazardous chemical in a workplace. There's no de minimis quantity exemption for the SDS requirement. Use a bottle of 70% isopropyl alcohol for cleaning in your office or shop and you need an SDS accessible to exposed workers. A narrow consumer-use exemption exists for products used exactly as a consumer would, but it rarely applies in a business setting.

Can I store the isopropanol SDS digitally instead of in a paper binder?

Yes. OSHA explicitly permits electronic SDS management under 29 CFR 1910.1200 as long as workers can reach the sheets during their shift without barriers. No login they don't have, no need to ask a supervisor, no single point of failure like a device that's always in use. A backup plan for outages is smart practice, though OSHA hasn't mandated a specific backup format.

What GHS hazard pictograms appear on an isopropanol label?

Two: the flame (flammable liquid, Category 2) and the exclamation mark (skin and eye irritant, plus specific target organ toxicity from a single high-concentration inhalation). The signal word is 'Danger.' A label showing only one of these may be incomplete, or it's for a diluted formulation that falls below GHS flammability thresholds.

What's the difference between a material safety data sheet and a safety data sheet for isopropanol?

Nothing substantive. 'Material Safety Data Sheet' was the pre-2012 OSHA term. OSHA's 2012 HazCom revision renamed it 'Safety Data Sheet' and locked in the 16-section GHS format. Both refer to the same chemical hazard document. The old 8-section ANSI-format MSDS and the current 16-section GHS SDS cover the same core topics, but the newer format is more standardized and works internationally.

How long do I have to keep the isopropanol SDS on file?

Under 29 CFR 1910.1020(d), employers must keep employee exposure records, including SDSs for substances that could cause long-term health effects, for the duration of employment plus 30 years. Isopropanol isn't tied to long-latency disease like cancer, so common practice is to hold the SDS while the chemical is in use and for a period after. The 30-year rule targets substances with delayed health effects. When in doubt, keep it longer.

Do I need a written hazard communication program just because I use isopropanol?

Yes. Any employer with one or more hazardous chemicals on site must keep a written HazCom program under 29 CFR 1910.1200(e). Isopropanol qualifies. The program must describe your SDS management system, labeling procedures, and worker training approach, and it must be available to workers and OSHA on request. There's no size exemption.

How does the isopropanol SDS compare to the toluene SDS?

Toluene is considerably more hazardous by most measures. The ACGIH TLV for toluene is 20 ppm against 200 ppm for IPA, reflecting toluene's greater neurotoxicity. Toluene's SDS lists it as a possible reproductive toxicant and a CNS depressant at lower concentrations. Both are flammable with similar flash points, but toluene's tighter exposure limits and broader toxicity profile call for more aggressive engineering controls and air monitoring.

What should I do if a worker inhales isopropanol vapor at high concentration?

Move the worker to fresh air immediately. If they're symptomatic (dizzy, confused, unsteady, or unresponsive), call 911. If they feel mild irritation that clears in fresh air, keep watching them. Call Poison Control (1-800-222-1222) if you're unsure. Document the incident, review your ventilation controls, and file an OSHA 300 log entry if it results in medical treatment, lost time, or restricted duty.

Is 70% isopropyl alcohol covered by the same SDS as 99% isopropanol?

No. A 70% IPA solution has different physical and hazard data than 99% anhydrous IPA. The flash point of 70% IPA (roughly 18 to 22°C) is higher than 99% IPA (12°C), and the vapor pressure differs too. You need the SDS that matches your exact product and concentration. Pull it from your actual supplier for each product, not a generic internet version for a different concentration.

Can workers use isopropanol without gloves for brief skin contact?

Brief, occasional contact carries low acute risk, but the SDS recommends nitrile gloves for a reason. Isopropanol is a defatting agent that strips the skin's lipid barrier with repeated contact, driving occupational dermatitis. Workers doing multiple cleaning tasks a day should glove up. For a one-time, brief touch, the acute risk is minimal, but a standing gloves-for-IPA policy is cleaner and easier to enforce.

Does OSHA require air monitoring for isopropanol?

OSHA doesn't mandate periodic air monitoring for isopropanol under a specific standard the way it does for lead or asbestos. But the general duty clause (Section 5(a)(1) of the OSH Act) and 29 CFR 1910.1000 require you to hold exposure below the PEL. When overexposure is reasonably likely, monitor the air to document compliance. That's especially true for heated IPA, spray application, or confined-space cleaning.

What OSHA standard covers flammable liquid storage for isopropanol?

29 CFR 1910.106 governs flammable and combustible liquids in general industry. Isopropanol is a Class IB flammable liquid (flash point below 73°F, boiling point at or above 100°F). The standard limits quantities stored outside approved storage rooms to 25 gallons in a safety can or 60 gallons in an approved flammable storage cabinet per 10,000 square feet, with added requirements for ventilation, bonding, and grounding during transfer.

Sources

1. OSHA, Hazard Communication Standard 29 CFR 1910.1200: GHS SDS 16-section format requirement, SDS accessibility requirement, written HazCom program requirement, and the verbatim quote on maintaining copies accessible during each work shift
2. OSHA, Occupational Chemical Database: Isopropyl Alcohol: OSHA PEL of 400 ppm TWA for isopropanol
3. ACGIH, Documentation of the Threshold Limit Values and Biological Exposure Indices: ACGIH TLV-TWA of 200 ppm and STEL of 400 ppm for isopropanol; TLV-TWA of 20 ppm for toluene
4. NIOSH, Pocket Guide to Chemical Hazards: Isopropyl Alcohol: IDLH of 2,000 ppm for isopropanol, GHS STOT classification, odor threshold, and flammable limits (2.0-12.7%)
5. DOT Pipeline and Hazardous Materials Safety Administration, Hazardous Materials Table 49 CFR 172.101: Isopropanol classified as UN 1219 Flammable Liquid, Packing Group II
6. OSHA, Respiratory Protection Standard 29 CFR 1910.134: Written respirator program, medical evaluation, and fit-testing required before workers wear tight-fitting respirators
7. EPA, RCRA Hazardous Waste Characteristics 40 CFR 261.21: IPA waste classified as D001 ignitable hazardous waste if it fails the ignitability characteristic
8. OSHA, Access to Employee Exposure and Medical Records 29 CFR 1910.1020: Employee exposure records including SDSs must be retained for duration of employment plus 30 years for chemicals with potential long-term health effects
9. OSHA, Penalties page, OSHA.gov: OSHA penalty amounts for serious violations ($1,190 to $16,550) and willful violations (up to $165,514) as of 2024
10. OSHA, Injury and Illness Recordkeeping 29 CFR 1904: Work-related injuries or illnesses involving medical treatment beyond first aid, lost time, restricted duty, or loss of consciousness must be recorded on the OSHA 300 log
11. NIOSH, International Chemical Safety Card: Isopropyl Alcohol (ICSC 0554): Flash point of 12°C (53°F), autoignition temperature of 399°C, vapor density of 2.1 for isopropanol
12. NIOSH, Pocket Guide to Chemical Hazards: Toluene: Toluene IDLH of 500 ppm; comparison data for the IPA vs. toluene hazard table