Page:NIOSH Manual of Analytical Methods - 1006.pdf/1

 FLUOROTRICHLOROMETHANE

CCl3F

MW: 137.37

METHOD: 1006, Issue 2

CAS: 75-69-4

1006

RTECS: PB6125000

EVALUATION: FULL

OSHA : C 1000 ppm NIOSH: C 1000 ppm ACGIH: C 1000 ppm (1 ppm = 5.62 mg/m 3 @ NTP)

PROPERTIES:

Issue 1: 15 August 1987 Issue 2: 15 August 1994

liquid; d 1.53 g/mL @ 0 C; BP 23.8 C; MP -111 °C; VP 92 kPa (690 mm Hg; 91% v/v) @ 20 C; not combustible

SYNONYMS: Freon 11; trichlorofluoromethane; monofluorotrichloromethane

SAMPLING SAMPLER:

SOLID SORBENT TUBE (coconut shell charcoal, 400 mg/200 mg)

MEASUREMENT TECHNIQUE:

GAS CHROMATOGRAPHY, FID

ANALYTE:

fluorotrichloromethane

DESORPTION:

5 mL CS 2; stand 30 min

INJECTION VOLUME:

5 µL

FLOW RATE: 0.01 to 0.05 L/min VOL-MIN: -MAX:

0.3 L 7L

SHIPMENT:

refrigerate

SAMPLE STABILITY:

quantitative recovery after 8 days @ 25 C [1]

TEMPERATURE-INJECTOR: -DETECTOR: -COLUMN:

175 °C 220 °C 65 °C

BLANKS:

2 to 10 field blanks per set

CARRIER GAS:

nitrogen, 30 mL/min

COLUMN:

6 m x 3-mm OD stainless steel packed with 10 % FFAP on 100/120 Chromosorb WHP.

CALIBRATION:

standard solutions of analyte in CS 2

RANGE:

2 to 40 mg per sample

ACCURACY RANGE STUDIED:

2390 to 10500 mg/m 3 [1] (4-L samples)

BIAS:

- 2.66%

ESTIMATED LOD: 0.01 mg per sample

ˆ ): 0.072 [1] OVERALL PRECISION (S rT ACCURACY:

± 16.08%

PRECISION (Sr):

0.063 @ 11 to 32 mg per sample [1]

APPLICABILITY: The working range is 90 to 1800 ppm (500 to 10000 mg/m 3) for a 4-L air sample.

INTERFERENCES: None identified. The chromatographic column or separation conditions may be changed to circumvent interference problems.

OTHER METHODS: This revises Method S102 [2].

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition, 8/15/94