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Ten NIOSH (National Institute for Occupational Safety and Health) Analytical Methods - Formic Acid.

PB84243245

Publication Date	1979
Page Count	32
Abstract	The NIOSH validated method for the determination of formic-acid (64186) is presented. Twenty four liters of air (flow rate at 0.05 to 0.20 liters per minute) are drawn through two glass tubes connected in series containing 60/80 mesh Chromosorb 103 to trap formic-acid vapors. The contents of each tube are transferred to a 20 milliliter (ml) container and the sample is desorbed with 10ml deionized water. The desorbant is injected into an ion chromatograph equipped with an electrolytic conductivity detector. The height of the sample peak is measured. The concentration of formic-acid in the sample is determined by reference to a calibration curve obtained by analyzing standards having concentrations of 0.1 to 3 times the OSHA standard of 9 milligrams per cubic meter (mg/cu m).
Keywords	Industrial hygiene Gas analysis Formic acid Standards Tests Chemical analysis Air pollution Samples Experimental design Concentration(Composition) Chromatographic analysis Adsorption Occupational safety and health Air pollution detection Indoor air pollution Toxic substances Procedures CAS 64-18-6 Ion exchange chromatography
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	68G - Environmental Health & Safety 99A - Analytical Chemistry 57U - Public Health & Industrial Medicine 68A - Air Pollution & Control
Corporate Authors	National Inst. for Occupational Safety and Health, Cincinnati, OH. Div. of Physical Sciences and Engineering.
Document Type	Technical Report
NTIS Issue Number	198426

Ten NIOSH (National Institute for Occupational Safety and Health) Analytical Methods - Formic Acid.

Ten NIOSH (National Institute for Occupational Safety and Health) Analytical Methods - Formic Acid.
PB84243245

Publication Date	1979
Page Count	32
Abstract	The NIOSH validated method for the determination of formic-acid (64186) is presented. Twenty four liters of air (flow rate at 0.05 to 0.20 liters per minute) are drawn through two glass tubes connected in series containing 60/80 mesh Chromosorb 103 to trap formic-acid vapors. The contents of each tube are transferred to a 20 milliliter (ml) container and the sample is desorbed with 10ml deionized water. The desorbant is injected into an ion chromatograph equipped with an electrolytic conductivity detector. The height of the sample peak is measured. The concentration of formic-acid in the sample is determined by reference to a calibration curve obtained by analyzing standards having concentrations of 0.1 to 3 times the OSHA standard of 9 milligrams per cubic meter (mg/cu m).
Keywords	Industrial hygiene Gas analysis Formic acid Standards Tests Chemical analysis Air pollution Samples Experimental design Concentration(Composition) Chromatographic analysis Adsorption Occupational safety and health Air pollution detection Indoor air pollution Toxic substances Procedures CAS 64-18-6 Ion exchange chromatography
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	68G - Environmental Health & Safety 99A - Analytical Chemistry 57U - Public Health & Industrial Medicine 68A - Air Pollution & Control
Corporate Authors	National Inst. for Occupational Safety and Health, Cincinnati, OH. Div. of Physical Sciences and Engineering.
Document Type	Technical Report
NTIS Issue Number	198426