Page:NIOSH Manual of Analytical Methods - 1551.pdf/1

 TURPENTINE

ca. C10 H16 (e.g., pinene, dipentene, and other terpenes)

MW: ca. 136

METHOD: 1551, Issue 2

1551

CAS: 8006-64-2

RTECS: YO8400000

EVALUATION: FULL

OSHA : 100 ppm NIOSH: 100 ppm; Group III Pesticide ACGIH: 100 ppm (1 ppm = 5.60 mg/m 3 @ NTP)

PROPERTIES:

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

liquid; d 0.860 to 0.875 g/mL @ 15 °C; BP 150 to 180 °C; VP 0.67 kPa (5 mm Hg; 6580 ppm) @ 20 °C; lower explosive limit 0.8% v/v in air

SYNONYMS: gumspirits, wood turpentine; oil of turpentine.

SAMPLING SAMPLER:

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

FLOW RATE:

0.01 to 0.2 L/min

VOL-MIN: -MAX:

1 L @ 100 ppm 10 L

SHIPMENT:

routine

SAMPLE STABILITY:

at least 1 week @ 25 °C

BLANKS:

2 to 10 field blanks per set

BULK SAMPLE:

MEASUREMENT TECHNIQUE:

GAS CHROMATOGRAPHY, FID

ANALYTE:

turpentine (all components)

DESORPTION:

1 mL CS 2; stand 30 min

INJECTION VOLUME:

1 to 5 µL

TEMPERATURE-INJECTION: -DETECTOR: -COLUMN: CARRIER GAS:

N 2 or He, 30 mL/min

COLUMN:

glass, 3 m x 6-mm, 10% SP-2100 on 80/100 mesh Supelcoport or 30 m x 0.32 mm ID fused silica capillary coated with DB-1

CALIBRATION:

standard solutions of bulk turpentine in CS 2

RANGE:

0.5 to 20 mg per sample

required, 1 to 10 mL

ACCURACY RANGE STUDIED:

264 to 1107 mg/m 3 [1] (10-L samples)

BIAS:

- 1.4%

225 °C 250 °C 50 to 250 °C @ 8°/min

ESTIMATED LOD: 0.1 mg per sample [2]

ˆ ): 0.055 [1] OVERALL PRECISION (S rT ACCURACY:

± 11.4%

PRECISION (Sr):

0.013 [1]

APPLICABILITY: The working range is 9 to 360 ppm (50 to 2000 mg/m 3) for a 10-L air sample. Turpentine is widely used as a solvent in paints, varnishes and lacquers.

INTERFERENCES: The chief constituents of turpentine are pinene isomers, diterpene and other C 10H 16 terpenes. Naphtha mixtures containing C 9-C11 alkanes or alkyl-substituted benzenes could cause interferences with the turpentine mixture. GC column and conditions should then be optimized for maximum resolution.

OTHER METHODS: This is Method S88 [3] in a revised format.

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