Page:NIOSH Manual of Analytical Methods - 1401.pdf/1

 ALCOHOLS II

Table 1

MW: Table 1

METHOD: 1401, Issue 2

CAS: Table 2

Issue 1: 15 February 1984 Issue 2: 15 August 1994

PROPERTIES: Table 1

(1) (2) (3) (4)

n-butyl alcohol: 1-butanol; n-Butanol; Propyl carbinol sec-butyl alcohol: 2-butanol; methyl ethyl carbinol; 2-hydroxybutane. isobutyl alcohol: 2-methyl-1-propanol; isopropyl carbinol; IBA. n-propyl alcohol: 1-propanol; ethyl carbinol.

SAMPLING SAMPLER:

RTECS: Table 2

EVALUATION: FULL

OSHA : Table 2 NIOSH: Table 2 ACGIH: Table 2 COMPOUNDS and SYNONYMS:

1401

MEASUREMENT

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

TECHNIQUE:

GAS CHROMATOGRAPHY, FID

ANALYTE:

compounds above

DESORPTION:

1 mL 1% 2-propanol in CS2

INJECTION VOLUME:

5 µL

FLOW RATE: 0.01 to 0.2 L/min

VOL-MIN: -MAX:

(1) 2L 10 L

(2) 2L 10 L

(3) 2L 10 L

SHIPMENT:

routine

SAMPLE STABILITY:

unknown; store in freezer

BLANKS:

2 to 10 field blanks per set

(4) 1L 10 L

TEMPERATURE-INJECTION: -DETECTOR: -COLUMN:

200 °C 250-300 °C 75 °C

CARRIER GAS:

N2 or He, 20 mL/min

COLUMN:

glass, 3 m x 2-mm ID, 10% SP-1000 on 80/100 mesh Chromosorb WHP, or equivalent

CALIBRATION:

solutions of analyte in eluent (internal standard optional)

ACCURACY RANGE STUDIED:

see EVALUATION OF METHOD

BIAS:

not significant [1]

ˆ ): OVERALL PRECISION (S rT METHOD ACCURACY:

± 15%

see EVALUATION OF

RANGE AND PRECISION:

see EVALUATION OF METHOD

ESTIMATED LOD: 0.01 mg per sample [2]

APPLICABILITY: This method may be used to determine two or more analytes simultaneously by varying GC conditions (e.g., temperature programming).

INTERFERENCES: The methods were validated using a 3 m x 3-mm ID stainless steel column packed with 10% FFAP on Chromosorb W-AW; other columns with equal or better resolution (e.g., capillary) may be used.

OTHER METHODS: This method combines and replaces Methods S66, S53, S64 and S62 [3].

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