Page:NIOSH Manual of Analytical Methods - 1003.pdf/1

 HYDROCARBONS, HALOGENATED Table 1

MW: Table 2

METHOD: 1003, Issue 3

CAS: Table 1

RTECS: Table 1

EVALUATION: PARTIAL

OSHA : See TABLE 1 NIOSH: See TABLE 1 ACGIH: See TABLE 1 COMPOUNDS: (synonyms)

1003

PROPERTIES:

Issue 1: 15 February 1984 Issue 3: 15 March 2003 See TABLE 2

See TABLE 1

SAMPLING

MEASUREMENT

SOLID SORBENT TUBE (coconut shell charcoal, 100 mg/50 mg) (Lot # 2000)

TECHNIQUE:

GAS CHROMATOGRAPHY, FID

ANALYTE:

compounds listed above

FLOW RATE:

0.01 to 0.2 L/min

DESORPTION:

1 mL CS2, stand 30 min

VOL-MIN: -MAX:

Table 3 Table 3

INJECTION VOLUME:

1 µL

SHIPMENT:

Routine

TEMPERATURE: Group A:

SAMPLE STABILITY:

30 days for all analytes

BLANKS:

2 to 10 field blanks per set

SAMPLER:

Group B:

CARRIER GAS:

Inj = 200°C, Det = 250°C ; 35°C (3 min) to 150°C (8°C/min). Inj = 225°C, Det = 250°C ; 35°C (3 min) to 190°C (8°C/min).

He, (Group A: 2.6 mL/min) (Group B: 4.7 mL/min)

ACCURACY RANGE STUDIED:

see EVALUATION OF METHOD [1]

BIAS:

see EVALUATION OF METHOD [1]

OVERALL PRECISION ( Ö r T ):

see EVALUATION OF METHOD [1]

ACCURACY:

see EVALUATION OF METHOD [1]

COLUMN: Group A: capillary, fused silica, 30 m x 0.32-mm ID; 1.80-µm film diphenyl/ dimethyl polysiloxane, Rtx® -502.2 or equivalent. Group B: capillary, fused silica, 30 m x 0.53 - mm ID; 3-µm film 35% diphenyl- 65% dimethyl polysiloxane, Rtx® -35 or equivalent. CALIBRATION:

standard solutions of analytes in CS2

RANGE:

see Evaluation of Method

ESTIMATED LOD:

Table 4

PRECISION (þ r ):

Table 4

APPLICABILITY: See Table 3 for working ranges. This method can be used for simultaneous determination of two or more of the analytes of interest either by use of both of the capillary columns listed above or by modifying the analytical parameters (i.e., temperature program) of the method. High humidity during sampling will decrease total breakthrough volume.

INTERFERENCES: None identified but as the number of different analytes sampled increases so does the chance for interferences. The choice of capillary column or analytical parameters may be modified to circumvent such interferences.

OTHER METHODS: This method is an update for NMAM Method 1003 (Issue 1, 2/15/84) [2]. Trichloroethylene, NIOSH Method 1022, was included in this method update [3]. Method improvements include higher recoveries at lower sample recovery levels, lower LOD and LOQ values, incorporation of capillary column chromatography, and acceptable recoveries in a 30 day storage stability study.

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition