ALC OH OLS CO MB INED : MET HO D 140 5, Issue 1, dated 15 M arch 200 3 - Page 6 o f 6 TABLE 4. PREVIOUS METHOD EVALUATION Range Studied [1] Breakthrougha
Overall Precision (ÖrT)
Recovery (%)
(mg/m3)
(µg / sample)
@ 2 X O S H A P EL
Avg. DE
Measurement Precision (Ör)
S66
0.065
100 .0
170 to 610
1,500 to 6,000
35 L
0.89
0.021
S53
0.066
107 .2
270 to 850
2,200 to 9,000
15 L
0.92
0.028
S64
0.073
100 .0
180 to 620
1,500 to 6,000
31 L
0.85
0.023
S62
0.075
103 .5
225 to 835
2,500 to 10,000
19 L
0.89
0.016
S52
0.111
98.8
1.8 to 8.4
20 to 100
>48 L
0.90
0.023
S55
0.104
91.8
140 to 510
1,100 to 4,700
>48 L
0.78
0.054
S54
0.080
98.9
95 to 380
1,000 to 4,000
>48 L
0.99
0.015
S58
0.077
107 .6
195 to 680
1,800 to 7,000
34 L
0.99
0.020
S60
0.080
101 .8
45 to 175
500 to 2,000
>48 L
0.99
0.035
Method
a) sampling done in dry air
TABLE 5. CURRENT METHOD EVALUATION
Compound
Range Studied (µg / sample)
Average DE
Measurement Precision ( Ö r)
Storag e Stability Levels Low (day)
High (day)
n-Butyl Alcohol
8 to 3,040
0.91
0.025
<7
30
sec-Butyl alcohol
8 to 3,030
0.96
0.016
30
30
Isobutyl alcohol
8 to 3,020
0.94
0.015
30
30
n-Propyl alcohol
8 to 3,020
0.92
0.015
14
30
9 to 152
0.80
0.026
<7
14
Diacetone alcohol
9 to 3,260
0.88
0.013
<7
7
Cyclohexanol
10 to 1,710
0.95
0.017
30
30
Isoamyl alcohol
8 to 1,450
0.92
0.017
14
30
Meth yl isobutyl carbinol
8 to 1,430
0.96
0.018
30
30
Allyl alcohol
NIOSH Manual of Analytical Methods (NMAM), Fourth Edition
