Foreword
1 Scope
2 Normative reference
3 Principle
4 Safety
5 Reagents and materials
5.1 Volatile organic compounds for calibration, of gas
chromatographic grade
5.2 Methanol, of gas chromatographic grade
5.3 Sorbent material
5.4 Carrier gas
6 Apparatus
6.1 Sorbent tubes
6.2 Sorbent tube unions
6.3 Syringes
6.4 Sampling pump
6.5 Tubing
6.6 Flow meter calibrator
6.7 Gas chromatograph
6.8 Thermal desorption apparatus
6.9 Injection facility for preparing standards by liquid
spiking
7 Procedure
7.1 Preparation of sampling tubes
7.1.1 Preconditioning
7.1.2 Conditioning
7.1.3 Storage of conditioned sorbent tubes before
sampling
7.2 Test chamber air sampling
7.3 Storage of loaded sampling tubes
7.4 Blank tubes
7.5 Preparation of calibration blend solutions for liquid
spiking
7.5.1 Solution containing approximately 10 mg/ml of
each liquid component
7.5.2 Solution containing approximately 1000 micro g/ml
of each liquid comp
7.5.3 Solution containing approximately 100 micro g/ml of
each liquid component
7.5.4 Solution containing approximately 10 micro g/ml of
each liquid component
7.5.5 Stability of calibration blend solutions
7.6 Preparation of calibration sorbent tubes spiked with
standards
7.7 Analysis
7.7.1 Desorption
7.7.2 Gas chromatographic analysis
7.7.3 Calibration
8 Identification and calculation
8.1 Identification of single VOC's
8.1.1 Identification Classes
8.2 Concentration of single VOC's in the sampled air
8.3 Calculation of TVOC[eng 13999]
9 Precision and Bias
10 Test report
11 Quality control
Bibliography