PROPYLENE DICHLORIDE 1013 CH3CHClCH2Cl MW: 112.99 CAS: 78-87-5 RTECS: TX9625000 METHOD: 1013, Issue 2
EVALUATION: FULL
OSHA: 75 ppm NIOSH: lowest feasible; carcinogen; Group I pesticide ACGIH: 75 ppm; STEL 110 ppm; carcinogen
(1 ppm = 4.62 mg/m³ @ NTP)
Issue 1: 15 May 1985 Issue 2: 15 August 1994
PROPERTIES: liquid; d 1.159 g/mL @ 25 °C; BP 95 °C; MP −70 °C; VP 5.3 kPa (40 mm Hg; 5.2% v/v) @ 20 °C; explosive range 3.4 to 14.5% v/v in air
SYNONYMS: 1,2-dichloropropane SAMPLING
MEASUREMENT
SAMPLER: SOLID SORBENT TUBE (petroleum charcoal, 100 mg/50 mg)
TECHNIQUE:
GAS CHROMATOGRAPHY, ELECTROLYTIC CONDUCTIVITY DETECTOR (HALL)
FLOW RATE: 0.01 to 0.2 L/min
ANALYTE:
propylene dichloride
VOL-MIN: -MAX:
DESORPTION:
1 mL 15% (v/v) acetone/cyclohexane; ultrasonic bath, 30 min
0.1 L @ 75 ppm 3.5 L
SAMPLE STABILITY: at least 26 days @ 25 °C in the dark [1]
INJECTION VOLUME:
BLANKS:
TEMPERATURE-INJECTION: 150 °C -COLUMN: 50 °C
2 to 10 field blanks per set ACCURACY
5 µL
RANGE STUDIED:
0.12 to 128 mg/m³ [1] (3-L samples)
HALL DETECTOR FURNACE: 840 °C -ELECTROLYTE: 0.9 mL/min -HYDROGEN: 50 mL/min
BIAS:
3%
CARRIER GAS:
N2, 25 mL/min
COLUMN:
nickel, 3 m × 2-mm ID, 3% Carbowax 1500 on 60/80 mesh Chromosorb WHP
CALIBRATION:
solutions in acetone/cyclohexane
RANGE:
0.5 to 400 µg per sample [2]
OVERALL PRECISION ( ): 0.064 [1] ACCURACY:
±15.5%
ESTIMATED LOD: 0.1 µg per sample [2] PRECISION ( ):
0.031 @ 0.5 to 520 µg per sample [1]
APPLICABILITY: The working range is 0.05 to 130 ppm (0.25 to 600 mg/m³) for a 2-L air sample at about 90% RH. INTERFERENCES: Propylene dichloride cannot be resolved from 1,2-dichloroethane with a Carbowax packed column. They were resolved with a Carbowax capillary column. OTHER METHODS: This revises P&CAM 321 [2].
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition
