SKC 575-007 Passive Sampler For Methanol Instruction Manual
- June 13, 2024
- SKC
Table of Contents
575-007 Passive Sampler For Methanol
Instruction Manual
575-007 Passive Sampler For Methanol
Performance Profile
| Housing Material: | Nylon |
|---|---|
| Diameter: | 1.4 in (3.5 cm) |
| Length (including clip): | 2.5 in (6.3 cm) |
| Depth: | 0.6 in (1.5 cm) |
| Sorbent/Amount: | Anasorb® 747, 500 mg |
| Concentration Range: | 20 to 400 ppm |
| Analysis: | Solvent desorption, gas chromatography/flame ionization detector |
(GC/FID); 50:50 carbon disulfide (CS2): dimethylformamide (DMF)
Shelf-life:| 2 years from date of manufacture at < 39.2 F (4 C)
Storage:| Before use: Store at ambient temperature or < 39.2 F (4 C). If
storing at < 39.2 F (4 C), bring to ambient temperature before sampling. Note:
Storage at < 39.2 F (4 C) is recommended to keep background low. After use:
Store sample at ambient temperature for up to one week or at < 39.2 F (4 C)
for up to 3 weeks.
Sample Time:| Validated for 15-min to 8-hr occupational exposure sampling. For
sampling times, visit www.skcinc.com and click on
Sampling Guides.
Sampling Rate:| 1.20 ml/min
Sampling
-
Remove the sampler and the green secondary diffusion barrier from the sealed pouch. Do not is card the pouch as it is used to protect the sampler during shipment.
-
Write the date, start time, and sampler ID number (found on the sampler) on the label on the pouch.
-
Remove the cap on the front of the sampler and set it aside. Press the green secondary diffusion barrier onto the front of the sampler. Do NOT remove the plastic plug on the back of the sampler. Removing this plug will VOID the ample. Clip the sampler to the worker’s clothing in the breathing zone. ensure small holes are facing out. Ensure holes are not covered in any way. Do not expose to rain/spray or splashing chemicals. Do not handle with dirty fingers/gloves.
-
At the end of the desired sampling period, unclip the sampler from the worker’s clothing. Remove the green secondary diff usion barrier and replace the cap on the front of the sampler.
-
Write the stop time on the label on the pouch. Important: Measure and record ambient temperature and atmospheric pressure. Include in information sent to the laboratory.
-
Carefully package the sampler in the pouch and send it, blanks, and pertinent information to an AIHA-accredited laboratory for analysis.
Analysis
Desorption
- Take out small plug from back of sampler and remove foam disc with a pair of tweezers. Transfer sorbent to vial. Tap sampler lightly to get all sorbent particles out of sampler.
- Add 2 ml of 50:50 CS2:DMF to vial.
- Cap vial with a PTFE-lined cap.
Calculations Where:
| C | Concentration of chemical (ppm) |
|---|---|
| SW | Sample weight by analysis (mg) |
| PT | Pressure/temperature correction (see right) |
| DE | Desorption effi ciency (see right) |
| MW | Molecular weight of chemical |
| SR | Sampling rate (ml/min) |
| MIN | Sampling time (minutes) |
The equation opposite is correct for 25 C (298 K) and standard atmospheric
pressure (760 mm Hg). To convert to other temperatures and pressures, the
correction factor is:
PT = (T/T)1.5 (P/P)
Where:
| T1 | Sampling site temperature (in kelvin) |
|---|---|
| T2 | 298 K |
| P1 | Sampling site pressure (in mm Hg) |
| P2 | 760 mm Hg |
Desorption efficiency should be determined and expressed as a decimal (e.g., 98%
= 0.98).
Example: Sampling toluene at 38 C and 695 mm Hg
The 575 Series diffusive samplers have been validated for specific compounds
according to specific methods. Substituting a solvent other than that stated in
these methods or other modal cations of these methods may result in inaccurate
results.
A listing of AIHA-accredited laboratories analyzing SKC 575 Series Passive
Samplers is available at
www.skcinc.com/lablocations.
References
Cassin Elli, M.E., Hull, R.D., Curable, J.V. and Teas, A.W., “Diffusive
Sampling: An Alternative to Workplace Air Monitoring,” A. Berlin, R.H. Brown
and K.J. Saunders (Royal Society of Chemistry, London) (eds.), NIOSH Protocol
for the Evaluation of Passive Monitors, 1987, pp. 190-202 Guild, L.V., Myrl,
K.H., Myers, G. and Dietrich, D.F., “Bi-Level Passive Monitor Validation: A
Reliable Way of Assuring Sampling Accuracy for a Larger Number of Related
Chemical Hazards,” Appl. Occur. Environ. Hyg., Vol. 7, No. 5, May 1992, pp.
310-317. Reprints are available from SKC. SKC 575 Passive Sampler Validation
(Research) Reports. Available at
www.skcinc.com/knowledgecenter.
Ordering Information
| Passive Sampler for: | Sorbent/Amount | Cat. No. | Qty. |
|---|---|---|---|
| Organic vapors | Anas orb CSC, 350 mg | 575-001 |
575-001A
575-001B
575-001C| 5
25
100
500
Organic vapors| Anas orb 747, 500 mg| 575-002
575-002A
575-002B
575-002C| 5
25
100
500
Ethylene oxide| Anas orb 747 treated with hydrobromic acid, 500 mg| 575-005
575-005A| 5
25
Styrene| Anas orb 747 treated with tert-butyl catechol, 500 mg| 575-006| 5
Methanol| Anas orb 747, 500 mg, includes secondary diffusion barrier| 575-007|
5
Desorption Efficiency Tubes, each single-section tube contains the sorbent type and amount equal to the corresponding passive sampler, pk/10
| Analysis Accessories | Cat. No. |
|---|---|
| For 575-001 Samplers | 575-048 |
| For 575-002 and 575-007 Samplers | 575-049 |
| For 575-005 Samplers | 575-051 |
| For 575-006 Samplers | 575-052 |
SKC Limited Warranty and Return Policy
SKC products are subject to the SKC Limited Warranty and Return Policy, which
provides SKC’s sole liability and the buyer’s exclusive remedy. To view the
complete SKC Limited Warranty and Return Policy, go to
skcinc.com/warranty.
863 Valley View Road, Eighty Four, PA 15330
724-941-9701 • skcinc.com
References
- SKC, Inc. | Industrial Hygiene and Occupational Safety Products and Technology
- SKC, Inc. | Industrial Hygiene and Occupational Safety Products and Technology
- Knowledge Center | Learn more about Industrial Hygiene & Occupational Safety Products at SKC, Inc.
- SKC Inc.
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