HYD RO CAR BO NS, BP 36-216 °C : MET HO D 150 0, Issue 3, dated 15 M arch 200 3 -Page 7 of 8 TABLE 3. SAMPLING FLOWRATE a, VOLUM E, CAPACITY, RANGE, OVE RALL BIAS AND PRECISION [3, 4, 8] Sam pling Flow rate
Rang e of
Volume (L) b
Substance
(L/min)
MIN
MAX
cyclohexane cyclohexene n-hexane methylcyclohexane n-nonane n-octane n-pentane n-undecane
0.01 - 0.2 0.01 - 0.2 0.01 - 0.2 0.01 - 0.2 0.01 - 0.2 0.01 - 0.2 0.01 -0.2 0.01-0.05
2.5 5 not 4 4 4 4 2
5 7 studied 4 4 4 4 2
Breakthrough Volume Concentration Vol (m g/m 3) (L) 7.6 10.4 6.1 5.9 6.1 6.5 3.1
1650 2002 4060 3679 3941 4612 5640
a
Minimum recomm ended flow is 0.01 L/min. Approximately two-thirds the breakthrough volume. c Co rrected va lue ca lculated from data in Re f. 3 b
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition
Overall
Generated Samples
Bias
Precision
Accuracy
(m g/m 3)
(%)
(ÖrT)
(%)
510-2010 510-2030 968-4060 877-3679 940-3941 1050-4403 1476-6190
1.1 10.6 -6.5 -1.8 6.1 -2.0 -8.4
0.060c 0.073 0.056 0.062 0.052 0.060 0.055
±11 .5 ±20 .7 ±15 .0 ±12 .5 ±15 .2 ±12 .1 ±16 .6
