575 Series Passive Samplers are now
VOC Chek 575 Series!

SKC VOC Chek 575 Passive Samplers
Miniature VOC Chek 575 samplers collect organic vapors without the use of a pump. Individual chemicals simply diffuse from the atmosphere into the sampler at a fixed rate. SKC has scientifically validated the sampling rate of the VOC Chek 575 Series passive samplers along with other critical sampling parameters to meet OSHA/ASTM/ANSI requirements. SKC VOC Chek 575 Series Passive Samplers are identified as a viable alternative to active sampling in eight OSHA methods.

Full-shift Sampling with only ONE sampler

The Methanol Passive Sampler collects methanol for up to an 8-hour work shift with superior efficiency. The Methanol Passive Sampler overcomes the short sample times and sample migration concerns of active methods. These samplers are ideal for use in chemical, fuel, wastewater, and hydraulic fracking industries.

Using a VOC Chek Passive Sampler is easy as 1, 2, 3!

Remove front cap.

Clip in worker's breathing zone.

Cap and record information.

VOC Chek 575 Series Passive Samplers
Validated to NIOSH Protocol ¹

Validation
Passive sampling is quite different from active sampling with sorbent tubes. With this fact in mind, NIOSH established validation protocols for evaluating the performance of passive samplers. ¹   Protocol validation was developed so that manufacturers could produce passive samplers that reliably assess airborne levels.

For compliance sampling, it is recommended that only passive samplers with full or bi-level validation be used. Passive samplers with lower levels of validation may be used only if verified by validated sorbent sample tube methods.

Validation Level

Full

Sampler passed stringent testing as outlined in NIOSH and ANSI protocols including desorption efficiency, relative humidity, temperature, concentration, sampling rate and capacity, reverse diffusion, and storage.

Bi-Level

The most volatile member of a related (homologous) series of chemicals has passed full validation; therefore, related less volatile series members require only partial validation to achieve the same level of sampling accuracy (see Guild et al. [DOI: 10.1080/1047322X.1992.10390161] or request a copy from SKC).

Partial

Passed NIOSH protocol for sampling rate, desorption efficiency, and storage stability.

(Not Validated) Calculated

This calculation of a sampling or uptake rate uses the diffusion coefficient of a specific chemical (D) and the cross-sectional area (A) and length (L) of the sampler’s diffusion path (based on sampler geometry).

OSHA

Sampler has been validated by OSHA and is referenced in a published OSHA method.

SKC Passive Sampler for Ethylene Oxide

• Fully validated and documented performance
• 8-hour and 15-minute sampling
• Small, lightweight, and easy to use — no pump required
• Ideal for hospitals, veterinary clinics, and sterile instrument manufacturers

SKC Passive Sampler for Methanol

• Small, lightweight, and easy to use — no pump required
• Contains 500 mg of Anasorb 747
• Secondary diffusion barrier provides 1.2 ml/min sampling rate
• 8-hour and 15-minute sampling
• Ideal for monitoring in the production of formaldehyde and other chemicals, fuel manufacturers, wastewater denitrification, and hydraulic fracturing

References

1.

Cassinelli, M.E., Hull, R.D., Crable, J.V. and Teass, 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.

2.

Guild, L.V., Myrmel, 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. Occup. Environ. Hyg., Vol 7, No. 5, May 1992, pp. 310-317. Reprints available from SKC!