Page:NIOSH Manual of Analytical Methods - 1405.pdf/6

 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