Page:NIOSH Manual of Analytical Methods - 1450.pdf/6

EST ERS 1: MET HO D 145 0, Issue 3, dated 15 M arch 200 3 - Page 6 o f 6 Table 2. Current Method Evaluation Overall Method

Storage Stability Study

Range (mg/m3 )

Accuracy

Breakthrough1 at 2 x OSHA PEL (# )

Bias (%)

S RT

Range Studied (µg/sample)

LOD (µg/sample)

Average DE

Measurement Precision (Ö r )

Levels (µg/sample)

Recovery (%)

n-amyl acetate

208-871

0.163

34.2 L

0.3

0.0831

14-440

0.9

0.96

0.0072

140

98

n-butyl acetate

352-1475

0.136

20.5 L

0.3

0.0691

15-440

0.9

0.96

0.0087

140

98

sec-butyl acetate

478-2005

0.116

16.5 L

-2.4

0.0539

14-440

0.9

0.97

0.0062

140

98

t-butyl acetate

424-1780

0.234

14.3 L

-8.6

0.0897

14-430

0.9

0.98

0.0052

140

98

2-ethoxyethyl acetate

262-1100

0.203

34.6 L

-9.6

0.0648

16-340

1

0.82

0.020

160

96

ethyl acrylate

50-210

0.162

>45 L

-7.1

0.0550

31-300

2

0.86

0.015

150

90

isoamyl acetate

208-874

0.195

32.3 L

-7.1

0.0750

14-430

0.9

0.97

0.0066

140

98

isobutyl acetate

306-1280

0.133

21.5 L

1.8

0.0656

14-440

0.9

0.97

0.0084

140

98

methyl isoamyl acetate

143-601

0.126

>45 L

-2.6

0.0590

14-280

0.9

0.81

0.015

140

95

n-propyl acetate

384-1610

0.162

17.9 L

6.9

0.0566

15-450

0.9

0.95

0.0091

140

98

Compound

1

Analytical Method

The values for these categories were taken from the original methods validation, see ref [1].

NIOSH Manual of Analytical Methods (NMAM), Fourth Edition