NITROETHANE
2526
| CH3CH2NO2 | MW: 75.07 | CAS: 79-24-3 | RTECS: CZ1050000 |
| METHOD: 2526, Issue 2 | EVALUATION: FULL | Issue 1: 15 August 1987 |
| Issue 2: 15 August 1994 | ||
| OSHA: | 100 ppm | PROPERTIES: | liquid; d 10.51 g/mL @ 20 °C; BP 114 °C; MP -89.5 °C; VP 2.8 kPa (21 mm Hg; 2.7% v/v) @ 25 °C; lower explosive limit 3.4% (v/v) in air |
| NIOSH: | 100 ppm | ||
| ACGIH: | 100 ppm (1 ppm = 3.07 mg/m3 @ NTP) |
SYNONYMS: None.
SAMPLING
| SAMPLER: | SOLID SOBENT TUBES (XAD-2, 600 mg + 300 mg) |
| FLOW RATE: | 0.01 to 0.05 L/min |
| VOL-MIN: -MAX: |
1.5 L @ 100 ppm 3 L [1] |
| SHIPMENT: | seperate front and back sorbent tubes |
| SAMPLE STABILITY: | stable 7 days @ 25 °C [1] |
| BLANKS: | 2 to 10 field blanks per set |
ACCURACY
| RANGE STUDIED: | 147 to 604 mg/m3 (3-L samples) [1] |
| BIAS: | - 1.13 [1] |
| OVERALL PRECISION (ŜrT): 0.06 [1] | |
| ACCURACY: | ± 11.9% |
MEASUREMENT
| TECHNIQUE: | GAS CHROMATOGRAPHY, FLAME IONIZATION DETECTOR |
| ANALYTE: | nitroethane |
| INJECTION VOLUME: | 5 μL |
| TEMPERATURE-INJECTION: |
160 °C |
| -DETECTOR: | 200 °C |
| -COLUMN: | 120 °C |
| CARRIER GAS: | He or N21 30 ML/min |
| COLUMN: | stainless steel, 6-m x 4-mm ID, packed with 10% FFAP on 100/120 mesh Chromosorb WHP |
| CALIBRATION: | standard solutions of nitroethane in ethyl acetate |
| RANGE: | 0.5 to 2 mg per sample [1] |
| ESTIMATED LOD: | not determined |
| PRECISION (S̄r): | 0.02 @ 0.47 to 1.9 mg per sample [1] |
| APPLICABILITY: | The working range is 80 to 320 ppm (250 to 1000 mg/m3 for a 2-L air sample. |
| INTERFERENCES: | None identified. |
| OTHER METHODS: | This revises Method S219 [2]. |
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94
