Microvacuum Cassettes
SKC Microvacuum Cassettes enable efficient collection of asbestos or fungal spores. Available with an MCE or polycarbonate filter each microvacuum cassette features a microvacuum nozzle for sampling of settled dust on surfaces. The contaminants are collected using a high flow pump (10 L/min), whilst the nozzle enables easy sampling on irregular surfaces such as carpet. They are specified in ASTM D5755 and D5756. Use a Template to define an area for analysis of the collected sample.
Available as individual cassettes or as a kit.
ISO-CHEK Cassettes
Suitable for most isocyanates, the patented ‡ ISO-CHEK sampling system uses a two-stage filter that results in the simultaneous collection and separation of vapour from aerosol at the point of collection.
- Accurately samples diisocyanates: HDI, MDI, IPDI, HMDI, 2,4-TDI, and 2,6-TDI
- The only filter-based system that simultaneously traps and separates both monomers and oligomers
- For better determinations of control strategies
- Decreases sample preparation and analysis time by 40% compared to other methods
- Pre-made calibration standards are available
- Highly stable — minimizes storage and handling
- Highly sensitive analysis provides detection limits below current regulated exposure levels
- Ideal for occupational sampling and environmental surveys
- Requires only a 15-minute sample time
- Meets the specifications of several methods
- ASTM D5932 for 2,4, 2,6-TDI
- ASTM D6561 for HDI
- ASTM D6562 for HDI
‡ U.S Patent No. 4,961,916
Cassette Shrink Bands
Specifically designed for use with sampling cassettes, SKC Cassette Shrink Bands are self-sealing and provide a smooth writing surface for sample identification. They indicate if tampering has occurred, and are available in a choice of colours.
To Fit Cassette Diameter (mm) | Pack Size | Part Number | |
25 | White | 100 1400 |
225-2503 225-2503A |
25 | Clear | 1400 | 225-2510 |
37 | White | 100 1000 |
225-25 225-25A |
37 | Clear | 100 1000 |
225-2509 225-2509A |
37 | Orange | 100 1000 |
225-2504 225-2504A |
37 | Yellow | 100 1000 |
225-2507 225-2507A |
37 | Red | 100 1000 |
225-2508 225-2508A |
37 | Black | 1000 | 225-2515A |
SureSeal Cassette Blanks
Cassette blanks are two or three section housings for filters. They hold the filter securely in place during sampling and are ideal for personal sampling.
Opaque filter cassette blanks are designed to handle light-sensitive compounds such as PNA (Paraffins, Naphthenes and Aromatics) hydrocarbons.
All SureSeal cassettes are inspected to meet a vacuum leak test of <1 inch Hg delay per 30 seconds when subjected to 24 inches Hg vacuum and a pressure decay of 1 psi per 30 seconds when subjected to 5 psi pressure. SureSeal Leak-free cassettes require the use of a SureSeal Cassette Opener.
Filter Supports
Various materials are used to support filters during sampling.
- Cellulose supports feature a smooth surface and uniform air flow distribution
- Porous plastic pads are impervious to most solvents
- Use stainless steel screens when cellulose or plastic will interfere with analysis
Diameter (mm) | Support Material | Pack Size | Part Number | |
25 | Cellulose pad | 100 | 225-28 | |
25 | Stainless steel screen, wide mesh | Each | 225-2625 | |
25 | Polyethylene (porous plastic) | 100 | 225-2901 | |
37 | Cellulose pad | 100 500 |
225-27 225-2700 |
|
37 | Cellulose spacer ring (NIOSH 5506 and 5515) | 25 | 225-23 | |
37 | Polyethylene (porous plastic) | 100 | 225-2902 | |
37 | Stainless steel screen, wide mesh | Each | 225-26 | |
37 | Stainless steel screen, fine mesh | Each | 225-2637 | |
47 | Cellulose pad | 100 | 225-2903 | |
47 | Stainless steel screen, wide mesh | 2 | 225-2647 | |
47 | Stainless steel screen, fine mesh | Each | 225-2647A |