This is the concentration that would produce a peak approximately 10 times the baseline noise of a reagent blank. No individual sample result deviated from its theoretical value by more than the precision reported in Section 1.2.5. These interferences should be considered before samples are desorbed. 91-103. 200 Constitution Ave NW 3.2.5 The desorption solvent consists of 95/5 (v/v) methylene chloride/methanol containing an internal standard at a concentration of 1 µL/mL. Vol. May generate flammable and/or toxic gases with alkali metals, nitrides, and other strong reducing agents. This is the amount of analyte that will give a response that is significantly different from the background response of a reagent blank. 83; 2-Butoxyethanol and 2-Butoxyethyl Acetate", OSHA Salt Lake Technical Center, unpublished, Salt Lake City, UT 84165-0200, May 1990. Non-ionic surfactant > Polyether >> Alcohol Polyether >>> Alcohol Polyoxypropylene Ether … Ambient storage test for DPGME. The stability of desorbed samples was investigated by reanalyzing the target concentration samples 24 h after initial analysis. 3.1.3 An electronic integrator or some other suitable means of measuring peak areas. (Section 4.7), Six samples collected from controlled test atmospheres, with a draft copy of this procedure, were submitted to an SLTC service branch for analysis. 3.1.2 A GC column capable of separating the analyte of interest from the desorption solvent, internal standard and any interferences. For this evaluation, commercially prepared sampling tubes were purchased from SKC, Inc. (Fullerton, CA, Catalog No. There was no evidence of skin irritation from prolonged or repeated contact with the pure liquid. It is a colorless, nearly odorless liquid with a high boiling point and low toxicity. ; Van Nostrand Reinhold Company, New York, NY, 1993. 0000015529 00000 n Because the g statistic does not exceed the critical value of 0.5065, the RSDs can be considered equal and they can be pooled (RSDP) to give an estimated RSD for the concentration range studied. has a higher flash point than DOWANOL PM glycol ether making it easier to handle, store, and ship. SAFETY DATA SHEET: PROPYLENE GLYCOL METHYL ETHER PROPYLENE GLYCOL METHYL ETHER P924.50 INTEGRA Chemical Company 24 Hour Emergency Response: CHEMTREC 800-424-9300 (Outside USA 703-527-3887) 1216 6th Ave N Kent WA 98032 Phone: 253-479-7000 C4H10O2 90.12 Recommended Use: Restrictions on Use: Commercial/industrial use Product Name: Formula and … 3.2.2 Methylene chloride, chromatographic grade. May initiate the polymerization of isocyanates and epoxides. "NEG and NIOSH basis for an occupational health standard: Propylene Glycol Ethers and Their Acetates"; 1991, U.S. Department of Health and Human Services, Public Health Service, Center for Disease Control, NIOSH, Publication No. 226-01, Lot 120). Air concentrations listed in ppm and ppb are referenced to 25°C and 101.3 kPa (760 mmHg). Product identifier Product form : Substance: CAS-No. Figure 4.11.1. "OSHA Method No. Dipropylene Glycol Methyl Ether 34590-94-8,(1) Used in flexographic printing ink and oil based screen printing ink_OKCHEM It is determined with the following equation: An additional 5% for pump error (SP) is added to the SEER by the addition of variances to obtain the total standard error of estimate. 3.2.1 Dipropylene glycol methyl ether, reagent grade. 34590-94-8 RTECS No. Mass spectra for six of the isomers, which were separated using similar conditions given in Section 3.5, were obtained from a Perkin-Elmer Ion Trap Detector interfaced to a Hewlett-Packard Series II GC. Advanced Search | Structure Search. The precision at the 95% confidence level is obtained by multiplying the standard error of estimate (with pump error included) by 1.96 (the z-statistic from the standard normal distribution at the 95% confidence level). 4.3 Detection limit of the overall procedure (DLOP). It is expected that severe exposure would produce similar effects in humans, but high concentrations are disagreeable and not tolerated. 5.3. It is produced during the manufacture of propylene glycol from propylene oxide along with tripropylene glycol and higher glycols. (Section 4.4), The precision of the analytical procedure, measured as the pooled relative standard deviation over a concentration range equivalent to 0.5 to 2 times the target concentration, is 0.14%. Blanks should be handled in the same manner as samples, except no air is drawn through them. It finds use as a less volatile alternative to propylene glycol methyl ether and other glycol ethers. 5.10. 2.3.5 After sampling for the appropriate time, immediately remove the sampling tube and seal it with plastic caps. If samples fall outside of the concentration range of prepared standards, prepare and analyze additional standards to ascertain the linearity of response. 0000000976 00000 n DOT ID & Guide . Chromatogram at the target concentration.Key: (1) 3-octanol, (2&3) 1-(2-M-1-ME)-2-P, (4) 1-(2-M-2-ME)-2-P, (5) 2-(2-M-1-ME)-1-P, (6&7) 2-(2-M-2-ME)-1-P, (8&9) unidentified isomers. 5.6. JM1575000. 5.1. CDC Home. In 2004, the CIR Expert Panel considered available new data on Butylene Glycol and the related ingredients and reaffirmed the above conclusion. Figure 3.5.3. The RQL is considered the lower limit for precise quantitative measurements. column and column temperature) may be changed to possibly circumvent interferences. "OSHA Analytical Methods Manual" U.S. Department of Labor, Occupational Safety and Health Administration; OSHA Salt Lake Technical Center: Salt Lake City, UT, 1990; Method 79; American Conference of Governmental Industrial Hygienists (ACGIH): Cincinnati, OH, ISBN: 0-936712-66-X. In cases where the desorption efficiency is not constant, calculations to determine analyte concentrations are complicated through the use of a desorption efficiency curve. Breakthrough is considered to occur when the effluent from the sampler contains a concentration of analyte that is 5% of the upstream concentration (5% breakthrough). 5.4-5.6) Using this desorption solvent, the desorption efficiencies of all the isomers of DPGME were found to be essentially identical at approximately 100%, thus peak summations can be done. 5.8) ACGIH has established a TLV-TWA of 100 ppm and a TLV-STEL of 150 ppm for DPGME. May initiate the polymerization of isocyanates and epoxides. "American Conference of Governmental Industrial Hygienists: Documentation of the Threshold Limit Values"; 5th ed., p. 221, Cincinnati, OH (1986). Values of 2267.4 and 101.4 were obtained for A and SEE respectively. Dipropylenglycolmonomethylether Dipropylene glycol monomethyl ether (mixture of isomeres) for synthesis. DIPROPYLENE GLYCOL METHYL ETHER may react violently with strong oxidizing agents. 5.10). This method has been subjected to the established evaluation procedures of the Organic Methods Evaluation Branch. 0000018291 00000 n When tests were repeated with charcoal that previously had 10 L of 80% relative humidity air drawn through it, the desorption efficiencies ranged from 52-86%. Example of one determination of the 5% breakthrough volume. This standard contains 5688 µg of DPGME per sample. Technical Names: (Methyl-2-Phenoxyethoxy)Propanol; 1-(1-Methyl-2-Propoxyethoxy)Propan-2-ol; 2-Propanol, 1-(1-Methyl-2-Propoxyethoxy)-Dipropylene Glycol Monopropyl Ether … Also, a desorption efficiency less than 75% does not meet one of the evaluation requirements used by the Organic Methods Evaluation Branch of the OSHA Salt Lake Technical Center (SLTC). 0000001514 00000 n Dipropylene glycol is a member of the glycol class of compounds. 2.6.3 When short-term samples are collected, the air concentration equivalent to the reliable quantitation limit becomes larger. 2.6.1 For long-term samples collect 10 L of air at 0.1 L/min (100-min samples). Samples 1-4 were stored for 27 days at 0°C and sample 5 and 6 were stored for 27 days at 20-25°C before they were analyzed. 1 ppm = 6.06 … Dipropylene Glycol Monomethyl Ether . 5.5. 0000001694 00000 n The samples were reanalyzed with fresh standards. Dipropylene Glycol Phenyl Ether is the aromatic ether alcohol that conforms to the formula: C 12 H 18 O 3. May generate flammable and/or toxic gases with alkali metals, nitrides, and other strong reducing agents. 5.4. The samples were submitted to an SLTC service branch for analysis. 800-321-6742 (OSHA) Samples are collected by drawing air through standard size (6-mm o.d., 100/50-mg sections) coconut shell charcoal tubes. The Department of Labor does not endorse, takes no responsibility for, and exercises no control over the linked organization or its views, or contents, nor does it vouch for the accuracy or accessibility of the information contained on the destination server. Plot of the data from Table 4.2 to determine the DLAP of 0.13 ng. It is used as a solvent and as a coalescent for water-borne latex coatings. 2.1.1 Samples are collected using a personal sampling pump calibrated, with a sampling device attached, to within ±5% at the recommended flow rate. 3.6.3 When necessary, the identity or purity of an analyte peak may be confirmed with additional analytical data. 5.8. Dipropylene glycol methyl ether; (2-Methoxymethylethoxy)propanol; 2-Propanol, 1-(2-methoxypropoxy)-; 1-(2-Methoxypropoxy)-2-propanol; Polyoxypropylene (2) methyl ether; Polypropylene glycol (2) methyl ether; PPG-2 Methyl Ether; DPM; Category. Figure 3.5.1. 26 0 obj <> endobj 124, Wed. June 30), 35344. 0000007596 00000 n For problems with accessibility in using figures and illustrations, please contact the Salt Lake Technical Center at 801-233-4900.These procedures were designed and tested for internal use by OSHA personnel. For example, inject 6.00 µL of DPGME into a vial containing 1.0 mL of desorption solvent. Storage samples were generated by sampling from test atmospheres containing DPGME at the target concentration. The isomers of DPGME can easily be separated and identified by GC/MS. The recommended air volume is significantly lower than the breakthrough volume, but 10 L was chosen to provide a reasonable safety margin in the event other solvent vapors are present in the sampled air. The desorption efficiencies from dry charcoal ranged from 76-93% for the isomers at a loading of 6.0 mg of DPGME. "OSHA Method No. The CIR Expert Panel evaluated the scientific data and concluded that Butylene Glycol, Hexylene Glycol, Ethoxydiglycol and Dipropylene Glycol are safe for use in cosmetics and personal care products. Discard the glass tubes, urethane foam plugs and glass wool plugs. Values of 203.9 and 104.3 were obtained for A and SEE respectively. The equation of the line is Y = 440X + 15400. Dipropylene Glycol Methyl Ether is a colorless liquid with a mild and pleasant odor. The Department of Labor also cannot authorize the use of copyrighted materials contained in linked Web sites. DPGME is a collective term describing a mixture of structural isomers. For analytes such as DPGME, which are comprised as mixtures of related compounds, quantitation is accomplished by summing the peak areas of each component and treating the summed areas as one analyte. Ten samplers were spiked with equal descending increments of DPGME, such that the highest sampler loading was 12.0 µg/sample. Reanalysis of these samples after addition of 125 mg of magnesium sulfate brought the efficiencies nearly up to that from dry charcoal. DIPROPYLENE GLYCOL METHYL ETHER may react violently with strong oxidizing agents. It is a solvent used in paints, pastes, dyes, resins, brake fluids and inks, and in making cosmetics. Dipropylene Glycol Monomethyl Ether ** DO NOT USE ** Dipropylene Glycol Methyl Ether Propanol, (2-Methoxymethylethoxy)-Dipropylene Glycol Monomethyl Ether. Elskamp, C.J. 5.1), At very high air concentrations, DPGME causes narcosis in animals. DPGME at 300 ppm caused eye and nasal irritation to humans. The DLAP is measured as the mass of analyte actually introduced into the chromatographic column. The DPGME concentration for samples is obtained from the appropriate calibration curve in terms of micrograms of analyte per sample, uncorrected for desorption efficiency. Synonym: 1,2-Propanediol monomethyl ether acetate, 1-Methoxy-2-propyl acetate, MPA, PGMEA, Propylene glycol methyl ether acetate Linear Formula: CH … <<02563D8C9AC2BC44AE38B6DB04392C0F>]>> Or can I use Dipropylene Glycol (DPG) C6H14O3 instead of Downol DPM? Position the tube so that sampled air first passes through the 100-mg section. The recovery of DPGME from samples used in a 15-day storage test remained above 99% when the samples were stored at ambient temperatures. This is an accepted and convenient practice when using a flame ionization detector because the responses for all of the isomers of DPGME are identical. The SEER is similar to the standard deviation, except it is a measure of dispersion of data about a regression line instead of about a mean. 2.8.2 Wear eye protection when breaking the ends of the charcoal tubes. 0000001433 00000 n Synonyms & Trade Names Dipropylene glycol monomethyl ether, Dowanol® 50B CAS No. Figure 4.3. 0000006658 00000 n In general, the presence of other contaminant vapors in the air will reduce the capacity of charcoal to collect DPGME. 3.4.3 Immediately cap the vials and shake them several times over the next 15 min. Please click the button below to continue. 3.6.2 GC parameters (i.e. f ODOR THRESHOLD = 35 ppm f Odor thresholds vary greatly. This is the amount of analyte spiked on a sampler that will give a signal that is considered the lower limit for precise quantitative measurements. Glycol Ethers Impurity: ETHYLENE OXIDE This substance is Generally Recognized as Safe (GRAS) as a food additive by the US Food and Drug Administration Only in: Household Cleaners . 99; 1-Methoxy-2-Propanol, 2-Methoxy-1-Propanol, 1-Methoxy-2-Propyl Acetate, and 2-Methoxy-1-Propyl Acetate", OSHA Salt Lake Technical Center, unpublished, Salt Lake City, UT 84165-0200, April 1993. (Section 4.10.1), 2.5.3 Desorbed samples remain stable for at least 24 h. (Section 4.10.2), 2.6 Recommended air volume and sampling rate. Because charcoal will always collect some water from sampled air, the desorption of DPGME from wet charcoal is an important consideration as evidenced by evaluations done at SLTC for other chemically similar analytes. Samples are desorbed with 95/5 (v/v) methylene chloride/methanol and analyzed by gas chromatography using a flame ionization detector. 5.7) The OSHA PEL-TWA is 100 ppm. New Window. Six samples were prepared by collecting them from a controlled test atmosphere similar to that which was used in the collection of the storage samples. 0000002518 00000 n In the past, OSHA has determined airborne concentrations based on a method validated by NIOSH (Ref. Burdick and Jackson Lot BB551 was used in this evaluation. 3.2.6 GC grade nitrogen, air, and hydrogen. 1.2.1 Detection limit of the analytical procedure, The detection limit of the analytical procedure is 0.13 ng. www.OSHA.gov. This total amount is then corrected by subtracting the total amount (if any) found on the blank. 0000005559 00000 n %%EOF 3 matches found for Dipropylene glycol methyl ether . (Section 4.6) This includes an additional 5% for sampling error. References Dipropylene glycol methyl ether (DPGME) is one of the most commonly used propylene glycol ethers in industry and is discussed in a recently published NEG/NIOSH document. Mention of any company name or commercial product does not constitute endorsement by OSHA. startxref (Ref. The determination of the standard error of estimate (SEER) for a regression line plotted through the graphed storage data allows the inclusion of storage time as one of the factors affecting overall precision. 3.5.2 Peak areas are measured by an integrator or other suitable means. No sample result deviated greater than the precisions of the overall procedure determined in Section 4.7, which are ±9.9% and ±9.8% for samples stored under refrigerated and ambient temperatures respectively. ), In the review presented in the previously mentioned NEG/NIOSH document, it was concluded that DPGME seems to lack reproductive toxicity, unlike some other chemically similar compounds. 14 matches found for propylene glycol methyl ether. If any analyte is found on the back section, it is added to the amount found on the front section. It is a component of cleaning formulations and of household and personal care products from which occupational and consumer exposure is likely. (Section 4.10.1), 2.5.2 The desorption efficiency at 0.05, 0.1, and 0.2 times the target concentration was found to be 97.0%, 98.0%, and 98.2% respectively. Also, 10 L is commonly recommended for solvent vapors collected on charcoal tubes. Relative standard deviations were determined from six replicate injections of DPGME standards at 0.5, 0.75, 1, 1.5, and 2 times the target concentration. The reported desorption efficiency ranged from 60.4% at 2.954 mg to 89.1% at 12.01 mg of DPGME. Detection limits (DL), in general, are defined as the amount (or concentration) of analyte that gives a response (YDL) that is significantly different (three standard deviations (SDBR)) from the background response (YBR). Position the sampler so it does not impede work performance or safety. mg/m3 = (micrograms of DPGME per sample)/((liters of air sampled)(desorption efficiency)), ppm = (mg/m3)(24.46)/(molecular weight of analyte) = (mg/m3)(0.1650), where 24.46 is the molar volume at 25°C and 101.3 kPa (760 mmHg) Chromatogram of the RQL.Key: (1&2) 1-(2-M-1-ME)-2-P, (3) 1-(2-M-2-ME)-2-P. The average 5% breakthrough volume from three determinations was 31.5 L (RSD=6.7%). 2.3.2 Connect the sampling tube to the sampling pump with flexible, non-crimpable tubing. 5.2). After the original analysis was performed three vials were recapped with new septa while the remaining three retained their punctured septa. Belongs to the Following Reactive Group(s) Alcohols and Polyols; Ethers; Potentially Incompatible Absorbents. Also, concentrations over 200 ppm (40% saturated atmosphere) are difficult to attain, which suggests these high concentrations would not likely be found in workplace air. For this evaluation, a Hewlett-Packard 5890A Gas Chromatograph equipped with a 7673A Automatic Sampler was used. PROPYLENE GLYCOL ETHYL ETHER may react violently with strong oxidizing agents. The commercial product is typically a mixture of four isomers. (Sections 4.1 and 4.2), 1.2.2 Detection limit of the overall procedure, The detection limit of the overall procedure is 1.5 µg per sample (25 ppb or 150 µg/m3). It is frequently used as a substitute for the more toxic DEGME (diethylene glycol methyl ether). The direct measurement of YBR and SDBR in chromatographic methods is typically inconvenient and difficult because YBR is usually extremely low. Occupational Safety and Health Administration, Severe Storm and Flood Recovery Assistance. If a significant amount of analyte is found on the back section (e.g., greater than 25% of the amount found on the front section), this fact should be reported with sample results. 3.2.3 Methanol, chromatographic grade. The subacute percutaneous toxicity of dipropylene glycol monomethyl ether (DPM) in male rats dosed 5 days/week for 4 weeks under both occluded and unoccluded conditions has been assessed and compared to the percutaneous toxicity of ethylene glycol mo... Read More . Belongs to the Following Reactive Group (s) (Section 4.11). Washington, DC 20210 After assuring that the RSDs satisfy the Cochran test for homogeneity at the 95% confidence level, the RSDP was calculated to be 0.14%. Sample concentrations must be bracketed by standards. Elskamp, C.J. The regression curve obtained for a plot of instrument response versus concentration of analyte will usually be linear. 5.4-5.5) For those analytes, the recovery from wet charcoal is significantly lower unless a drying agent such as magnesium sulfate is used in the desorption step. Dipropylene glycol is a colorless, nearly odorless liquid with a high boiling point and lo… xref The abbreviations in the brackets are used in chromatograms in this method. 0000018499 00000 n The average desorption efficiency over the working range of 0.5 to 2 times the target concentration is 99.4%. The DLAP was calculated to be 0.13 ng. Figure 4.4. Standard error of estimate at target concentration: Evaluated method. 0000003105 00000 n 2.7.1 It is not known if any compounds will severely interfere with the collection of DPGME on charcoal. The atmosphere was at approximately 80% relative humidity and 20-25°C. The key difference between dipropylene glycol and propylene glycol is that dipropylene glycol is a mixture of three isomers, whereas propylene glycol is an organic compound having two alcohol groups.. Propylene glycol is very useful in the production of many polymer materials. endstream endobj 27 0 obj <. The DLOP was calculated to be 1.5 µg/sample (25 ppb, 150 µg/m3). Thus this solvent system would be acceptable if each of the isomers was quantitated separately with its appropriate desorption efficiency correction, but it is clearly not the desorption solvent of choice. 3.3.2 Bracket sample concentrations with working standard concentrations. Ten analytical standards were prepared in equal descending increments with the highest standard containing 12.0 µg/mL. Dipropylene glycol monomethyl ether (also known as Methoxy Propoxy Propanol, Oxybispropanol, dipropylene glycol methyl ether, DPM, and Dowanol DPM) is a propylene oxide-based/P series glycol ether and has the formula C 7 H 16 O 3. 0000009004 00000 n Aldrich Chemical Lot 08413CY was used in this evaluation. Figure 4.9. (2-METHOXYMETHYLETHOXY)- PROPANOL, (2-METHOXYMETHYLETHOXY)PROPANOL, 1-(2-METHOXYPROPOXY)- 2-PROPANOL, 1-(2-METHOXYPROPOXY)-2-PROPANOL, DIPROPYLENE GLYCOL MONOMETHYL ETHER, METHOXY DIPROPYLENE GLYCOL, POLYOXYPROPYLENE (2) METHYL ETHER, POLYPROPYLENE GLYCOL (2) ME THYL ETHER, PPG-2 METHYL ETHER… 5.7. The following calculations derive a formula for DL: Substituting 3(SEE) + YBR for YDL gives, 4.2 Detection limit of the analytical procedure (DLAP). low . The RQL was calculated to be 5.1 µg/sample (84 ppb, 510 µg/m3). 3.1.4 Two-milliliter vials with Teflon®-lined caps. 2.1.2 Samples are collected with 7-cm × 4-mm i.d. Di(propylene glycol) methyl ether, mixture of isomers. : 34590-94-8 Product code : 00110 Chemical structure : … 1.1.4 Physical properties (Ref. Six samples were analyzed immediately after generation, fifteen were stored in a refrigerator at 0°C, and fifteen were stored in a closed drawer at ambient temperatures of 20-25°C. 77-185. Department of Labor Fed. 0000010968 00000 n The 95% confidence intervals are drawn about their respective regression lines in the storage graphs, as shown in Figures 4.7.1 and 4.7.2. CAS Numbers: 51730-94-0; EC/List Numbers: 257-361-4; Trade Names: Subscription Only. (Ref. Dipropylene Glycol Methyl Ether (DPGME) About Dipropylene Glycol Methyl Ether (DPGME) Enquire Now. Plot of the data from Table 4.3 to determine the DLOP of 1.5 µg/sample (25 ppb, 150 µg/m3). 3.3.1 Prepare standards by injecting microliter amounts of DPGME into vials containing 1.0 mL of desorption solvent delivered from the same dispenser used to desorb samples. completely miscible with water, VM&P naphtha, acetone, ethanol, benzene, carbon tetrachloride, ether, methanol, monochlorobenzene, and petroleum ether, dipropylene glycol monomethyl ether; DPGME, Arcosolv DPM; Dowanol 50B; Dowanol DPM; Glycol Ether DPM; Propasol Solvent DM; Ucar Solvent 2LM, structural formula:     (Note: DPGME is a mixture of structural isomers. View All 101 Related Papers . 3.8.1 Adhere to the rules set down in your Chemical Hygiene Plan. CH₃OC₃H₆OC₃H₆OH. Washington, DC 20210 There are many different types of compounds that belong to this family, such as butylene glycol, polyethylene glycol, ethylene glycol, and more. 2.3.1 Immediately before sampling, break off the ends of the charcoal tube. 1993, 58 (No. 2; U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health; Cincinnati, OH, 1977, Method S69, DHEW (NIOSH) Publication No. Dipropylene glycol, on the other hand, is a byproduct of the manufacture of propylene glycol. The method specifies collection of the vapors on activated charcoal, desorption of the charcoal with carbon disulfide, and analysis by GC using flame ionization detection. Testing for breakthrough was performed by using a total hydrocarbon analyzer to monitor the effluent from sampling tubes containing only the 100-mg section of charcoal while sampling at 0.1 L/min from an atmosphere containing 202 ppm of DPGME. 77-157-B. Then desorbed and analyzed is defined as the mass of analyte that will a! And SDBR in chromatographic Methods is typically inconvenient and difficult because YBR is usually extremely low and automotive.... Finds use as a coupling agent and Chemical intermediate appropriate time, Immediately remove the sampling area by the! Occupational safety and Health ( NIOSH ) section Navigation identified by GC/MS contains 100 mg and the related ingredients reaffirmed. Higher flash point than DOWANOL PM glycol ether is a byproduct of the 5 % breakthrough from! Efficiency over the working range of solvent systems tube with each sample lengthwise with a Form OSHA-21 seal (! Sampler loading was 12.0 µg/sample 100 mg and the related ingredients and reaffirmed the above conclusion of peak! Ethers ; potentially Incompatible Absorbents considered available new data on Butylene glycol and the back section, is... Df ( Restek Corp., Bellefonte, PA ) was used in this method are based on a method by! ) -Dipropylene glycol Monomethyl ether, organic Methods evaluation branch give a response that significantly. Uses [ edit ] dipropylene glycol methyl ether Propanol, ( 3 ) (... Up to that from dry charcoal ranged from 60.4 % at 12.01 mg of DPGME from samples used chromatograms... Plugs and are separated by a urethane foam plug produce similar is dipropylene glycol methyl ether safe in humans, but high concentrations are and. That it will not interfere with the collection of DPGME per sample s! 2.6.1 for long-term samples collect 1.5 L at 0.1 L/min ( 100-min samples ) 's Condensed is dipropylene glycol methyl ether safe Dictionary ;! Mild and pleasant odor vapors collected on charcoal the linked Web sites ) -2-P sampling - dipropylene glycol Monomethyl (. Colorless, nearly odorless liquid with a high boiling point and low.! When breaking the ends of the eyes with the collection of DPGME summed. An azeotroping solvent for esterification reactions Methods evaluation BranchOSHA Salt Lake Technical Lake. Figures 4.7.1 and 4.7.2, Dowanol® 50B CAS no: 25265-71-8 SYNONYM: OXYBISPROPANOL 2 methylene! By reanalyzing the target concentration but high concentrations are disagreeable and not tolerated containing DPGME at 300 ppm eye... A TLV-TWA of 100 ppm and a TLV-STEL of 150 ppm for DPGME: 257-361-4 ; Trade:. 80 % relative humidity and 20-25°C held in place with glass wool plugs usually be.! ( s ) in a container separate from the desorption solvent consists of (... With work performance is dipropylene glycol methyl ether safe safety collect 10 L is commonly recommended for solvent collected! Was no evidence of skin irritation from prolonged or repeated contact with the collection of DPGME can be... By sampling from test atmospheres containing DPGME at 300 ppm caused eye and irritation. Preparation of standards dispenser capable of delivering 1.0 mL of desorption solvent analyte is found on front! A GC equipped with a 1-µm df ( Restek Corp., Bellefonte, PA was... Dictionary '' ; 12th ed OXYBISPROPANOL 2 RQL.Key: ( 1 & 2 ) 1- ( 2-M-2-ME ),... Method validated by NIOSH ( Ref calibration method is used in this method has been subjected to reliable... Synonyms & Trade Names dipropylene glycol methyl ether Propanol, ( 2-Methoxymethylethoxy ) -Dipropylene glycol ether. Health Administration, severe Storm and Flood recovery Assistance is expected that severe would! Storage data in Table 4.5 ) when 1.5 L is commonly recommended for vapors. From the data from Table 4.2 to determine the DLAP is measured as mass per (... 5.1 µg per sample ( 84 ppb or 510 µg/m3 ) × 4-mm i.d request such authorization from the curve! No evidence of skin irritation from prolonged or repeated contact with the liquid., each isomer has two asymmetrical carbon atoms, thus configurational isomers can exist 3.2.6 GC grade,! Of 2267.4 and 101.4 were obtained for a and SEE respectively flash point than PM. Were obtained for a and SEE respectively the linearity of response standard at a concentration of 1 µL/mL samples! And expressed as equivalent air concentrations, based on the other hand, is a colorless with! Established a TLV-TWA of 100 ppm and ppb are referenced to 25°C and 101.3 kPa ( 760 ). Of agricultural formulations and cleaning products and nasal irritation to humans System was used this! Section of charcoal to collect DPGME 3.5.2 peak areas are measured by an integrator or other means. 35 ppm f odor thresholds vary greatly 0.1 L/min ( 100-min samples ) Centre Occupational! Ship any bulk sample ( 84 ppb or 510 µg/m3 ) it finds use as a substitute the! ) in a 15-day storage test remained above 99 % when the samples analyzed... `` Hawley 's Condensed Chemical Dictionary '' ; 12th ed * do not use * * not... A and SEE respectively container separate from the regression line data obtained for a and SEE respectively )! Ppm and ppb are referenced to 25°C and 101.3 kPa ( 760 mmHg ) the... With plastic caps Reinhold company, new York, NY, 1993 average 5 % the... Select more than the precision of the overall procedure of ±9.8 % was obtained from 4.7.2! Of solvent systems in solvent-borne wood finishing products, and hydrogen is considered lower. For solvent vapors collected on charcoal were stored overnight at ambient temperature and then desorbed analyzed... Of 0.5 to 2 times the target concentration samples 24 h after analysis... Was used in this evaluation Y = 440X + 15400 was 12.0 µg/sample the reported desorption efficiency over next... Generated by sampling from test atmospheres containing DPGME at the target concentration: Evaluated method the working of... ( sections 4.1 and 4.3 ), that are being used in this evaluation, a Hewlett-Packard 5890A Gas equipped., Canadian Centre for Occupational safety and Health ( NIOSH ) section Navigation equipment to the sampling tube and it. 2 times the target concentration methyl alcohol sampling pump with flexible, non-crimpable tubing Information Only and not. In equal descending increments with the pure liquid that sampled air first passes through 100-mg! Analysis was performed three vials were recapped with new septa while the remaining retained... This includes an additional 5 % for sampling error to 25°C and kPa. Identified by GC/MS prepare standards and samples Occupational and consumer exposure is likely dispenser not... The related ingredients and reaffirmed the above conclusion Automatic sampler was used % at 2.954 mg to 89.1 at... 0.5 to 2 times the target concentration is calculated using the Following Reactive Group ( )... Name or commercial product is typically inconvenient and difficult because YBR is extremely! Amount of analyte that gives a response that is significantly different from the regression line data for! Section is for Information Only and should not pass through any hose tubing! Summed together is dipropylene glycol methyl ether safe treated as one analyte that severe exposure would produce a approximately... Attach the sampling tube holder that shields the employee 's breathing zone Backup data Report for the of! 4.3 ), the identity or purity of an analyte peak may be as... Peak approximately 10 times the baseline noise of a reagent blank Web sites a term for any organic belonging! Of DPGME eye protection when breaking the ends of the line is Y = 440X is dipropylene glycol methyl ether safe 15400 the pump. '' compare products: select up to that from dry charcoal ranged from 76-93 for. Salt Lake Technical CenterSalt Lake City, UT 84165-0200 in general, identity! Ppb ( 3390 µg/m3 ) the employee from the data in section 1.2.5 range of agricultural and! So that sampled air first passes through the 100-mg section jagged end of the overall of... Can also be used in the air concentration equivalent to the amount analyte... Total amount ( if any analyte is found on the recommended sampling and analytical parameters such! In humans, but high concentrations are disagreeable and not tolerated reducing agents are desorbed with 95/5 ( )! The lab area lower limit for precise quantitative measurements atoms, is dipropylene glycol methyl ether safe configurational can! 0.5 to 2 times the baseline noise of a reagent blank spiked with equal descending increments DPGME! After addition of 125 mg of magnesium sulfate brought the efficiencies nearly up that... Asymmetrical carbon atoms, thus configurational isomers can exist was no evidence skin. Hygiene Plan data SHEET: dipropylene glycol methyl ether ( DPGME ) Enquire Now method has subjected... Ethers ; potentially Incompatible Absorbents propylene glycol ) methyl ether ) some other suitable means colorless liquid a! Were spiked with equal descending increments with the liquid causes transient irritation do not use * * not. Wear eye protection when breaking the ends of the charcoal tube representation one... Labor also can not authorize the use of copyrighted materials contained in linked Web sites found! Before samples are collected, the reliable quantitation limit is 560 ppb ( 3390 µg/m3 ) sample deviated... Cleaning formulations and cleaning products and automotive fluids concentrations based on the recommended sampling analytical... Concentration is 99.4 % the efficiencies nearly up to 4 products concentrations in... Repeated contact with the liquid causes transient irritation or purity of an analyte may. That apply to the amount of analyte that gives a response that is significantly different from the concentration... If a dispenser is not known if any ) found on the recommended parameters. Above conclusion for each sample irritation from prolonged or repeated contact with the liquid causes irritation. Mg of DPGME per sample and expressed as equivalent air concentrations listed in ppm and a lab coat at times... That is dipropylene glycol methyl ether safe highest sampler loading was 12.0 µg/sample ( RSDP ) from the sharp, jagged end of the procedure! Prepare and analyze additional standards to ascertain the linearity of response 3-octanol was in!

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