Cassette and Filter Holders

SKC offer a range of filter holders and filter cassette holders.

Cassette and Filter Holders

Diameter (mm)	Description	Pack Size	Part Number
13	2-section, polypropylene, Swinnex^® Reusable Autoclavable Specified in NIOSH Method 5503 for PCBs Swinnex^® Sampling Kit, contains: 10 Swinnex 13 mm cassettes 10 Tubing adaptors 13 mm 5 µm box of 100 MCE Filters Compatible with the Face Level Sampling Headset. Replacement 13 mm diameter silicone gaskets.	10 1 100	225-32 225-8050K 225-3201
25	2-section, in-line, Delrin^® (acetal resin) with stainless steel support screen Broad chemical compatibility and strength Useful for low pressure applications	6	225-1109
25	Open face, Delrin^® (acetal resin) with stainless steel support screen Lightweight and corrosion-resistant Includes ¼ inch ID hose barb adaptor	6	225-1107
25 and 37	Filter Cassette Holder for 2 and 3 part cassettes, includes 0.9 m (3 ft) of ¼ inch Tygon tubing, collar clip, and a 25 mm adaptor ring. It is designed for attaching to a worker's collar and will accommodate: Two or three-piece 37 mm cassette with or without a cyclone 25 mm cassette with cowl DPM Cassette with a GS-1 Cyclone	Each	225-1
47	Polycarbonate, in-line, with support Lightweight Opens and closes easily without disturbing the filter Autoclavable	Each	225-4702
47	Savillex PFA with ¼ inch ferrule nuts and wrench set. Replace filters without disconnecting lines Operate at -200 to +260°C (-328 to +500°F) For optimum seal, SKC recommends PTFE filters (alternative filter materials may result in leakage)	Each	225-1712
47	Polypropylene Ideal for vacuum and pressure air sampling applications Can be used with pressures up to 100 psig (70 psi differential) or in a vacuum mode Inlet and outlet connections are female Luer slip and 1/4" NPT(M) threaded. An additional hosetail adaptor for connecting flexible tubing included.	Each	225-1147

225-32

225-1109

225-1107

225-1

225-4702

225-1712

225-1147

Documentation

Filter Cassette Holder
(225-1) Instructions

Swinnex Sampler
(225-32) Instructions

Read more …Cassette and Filter Holders

Nylon Membrane Filters

Nylon filters are hydrophilic and resistant to many organic solvents. They may be used in specific air sampling applications for particulates and bioaerosols, and are also commonly employed for liquid filtration and purification, and in laboratory environments for HPLC and biological assays.

Diameter (mm)	Pore Size (µm)	Description	Pack Size	Part Number
25	5.0	Nylon filters only, no support pad †	100	225-1501
25	5.0	Nylon filter with polypropylene support, preloaded in a 3-piece black conductive cassette	50	225-1504

† Filter supports available separately

Gelatin Filters

Ideal for maintaining the viability of collected microorganisms, the Gelatin Filters provide unequalled bacteria retention levels for quantitative analysis. The high moisture content helps to maintain microorganism viability for sampling periods up to 30 minutes. The filters dissolve easily when placed on agar, allowing for a gentle transition from sample medium to growth medium. For maximum culturability and superior collection of inhalable-size bioaerosols, combine 25 mm gelatin filters with the SKC Button Sampler.

Absolute retention rate:
- 99.9995% for Bacillus subtilis var. niger spores ‡
- 99.94% for T3 phages (coliphages) ‡
- 99.9% for T1 phages (coliphages) ‡
High moisture content
- Maintain microbe viability for short sampling periods
Completely water soluble
- Dissolve easily when placed on agar
- Prerequisite for virus sampling
Pre-sterilised by gamma irradiation
Ideal for monitoring in pharmaceutical plants
Can be used to monitor in areas where disinfectants or antibiotics are present

‡ At inlet velocities of 0.25 m/s, 0.3 m/s (80 %RH), and 0.3 m/s (50 %RH) respectively

Specifications

Material		Water-soluble gelatin
Pore Size		While having a nominal pore size of 3 µm, a higher capture efficiency of sub-micron particles can be expected due to the separations that occur on the surface and within the filter. It is through inertial impaction and diffusional interception that these filters can remove particles much smaller than 3 µm.
Thickness		Approximately 250 µm
Sterilisation		Presterilised by gamma radiation. Filters individually wrapped and packaged in units of five, each in a polyethylene bag.
Thermal Resistance		Maximum 60°C (140°F)
Residual Dampness Content		46 to 49%
Conditions for Use		Maximum room temperature is 30°C (86°F); maximum relative humidity is 85%.
Sampling Time		30 minutes at typical indoor relative humidity
Sampling Flow Rate		1 to 4 L/min for filter sampling of biological contaminants using a standard filter cassette, Button Sampler, or the IOM
Storage		Gelatin filters may be stored in low humidity, ambient conditions; storage between 4 and 8°C (39.2 and 46.4°F) is recommended. Caution: Do not store gelatin filters below 4°C (39.2°F). Condensation during thawing will dissolve filter. Avoid exposing filters to moisture, chemical vapors, and extreme temperatures.
Shelf-life		3 years from date of manufacture
Analysis		Direct method or indirect method. Gelatin filters dissolve when placed on agar plates.

Applications
- Indoor Air Quality (IAQ)
- Outdoor environmental measurements
- Clean Room Monitoring
- Veterinary clinics
- Hospitals
- Pharmaceutical manufacturing
- Military
Gelatin Filters

Diameter (mm) Support Pad included Notes Pack Size Part Number

25 No Water soluble 50 225-9551 † *

37 No Water soluble 50 225-9552 *

† Recommended for use with IOM and Button Samplers

* Storage between 4 and 8°C (39.2 and 46.4°F) recommended. Avoid temperatures <4°C (39.2°F), moisture, and chemical vapours
Documentation

Gelatin Filters
Instructions

Cellulose Depth Filters

Ideal for gravimetric sampling, collection of organic/inorganic precipitates, and AA (Atomic absoprtion) and HPLC (High-Performance Liquid Chromatography) methods requiring an ashless filter
100% pure, ashless type 40 quantitative cellulose fibre
Autoclavable

Diameter (mm)	Support Pad included †	Notes	Pack Size	Part Number
37	No	Cellulose, ashless, equivalent to Whatman Type 40	500	225-18A

† Filter supports available

Quartz Depth Filters

Quartz depth filters are used for sampling for elemental/organic carbon, Diesel Particulate Matter (DPM) and trace-level contaminants.

Heat treated to reduce trace organics
Binder free for maximum purity
Low metal background
Will withstand temperatures up to 1000°C (1832°F)

Filter Type

Type R-100 Filters meet specific requirements set forth by NIOSH - 99.97% retention efficiency for 0.3 µm diocrylphthalate (DOP) particles up to a 200 mg filter loading.
Tissuquartz™ Filters have a typical retention efficiency of 99.90% for 0.3 µm DOP particles at 32 L/min per 100 cm² filter media.

Type R-100 Quartz Depth Filters

Type R-100 Filters meet specific requirements set forth by NIOSH - 99.97% retention efficiency for 0.3 µm diocrylphthalate (DOP) particles up to a 200 mg filter loading.

Diameter (mm) Notes Pack Size Part Number

25 Type R-100, 380 µm thick 100 225-1824

37 Type R-100, 380 µm thick 100 225-1827

47 Type R-100, 380 µm thick 100 225-1830

Type Tissuquartz Depth Filters

Tissuquartz™ Filters have a typical retention efficiency of 99.90% for 0.3 µm DOP particles at 32 L/min per 100 cm² filter media.

Diameter (mm)	Notes	Pack Size	Part Number
25	Tissuquartz, 432 µm thick	100	225-1825
37	Tissuquartz, 432 µm thick	25	225-1822
47	Tissuquartz, 432 µm thick, can be used with DCS (Deployable Cartridge Sampler) System	25	225-1823
47	Tissuquartz, 432 µm thick, can be used with DCS (Deployable Cartridge Sampler) System	100	225-1811
102	QM-A 450 µm thick	100	225-1808

Preloaded Quartz Filters for DPM (Diesel Particulate Matter) Sampling

All SKC preloaded filters include supports and are in SureSeal leak-free cassettes that require a SureSeal Cassette Opener.

Diameter (mm)	Filter and Cassette Specifications	Pack Size	Part Number
25	Quartz, heat treated; Tissuquartz; 3-piece clear styrene, banded; meets NIOSH NEAT 2.0 protocol for NIOSH 5040 specifications	50	225-401-25
37	Quartz, heat treated; 3-piece clear styrene, banded; meets NIOSH 5040 specifications	50	225-401
37	Quartz, heat treated; 3-piece clear styrene, double banded; meets NIOSH 5040 specifications	50	225-401DB
Specialised DPM Cassette with precision jewelled impactor and two heat-treated quartz fibre filters. Tamper-evident sealed. Meets NIOSH 5040 specifications See also DPM Cyclone page		10	225-317 *
Specialised Banded DPM Cassette with precision jewelled impactor and two heat-treated quartz fibre filters. Tamper-evident sealed with sealing bands around end plugs. Meets NIOSH 5040 specifications. See also DPM Cyclone page		10	225-317-SB *
Cassette Opener, stainless steel, suitable for 25, 37, and 47-mm filter cassettes. Required for all SureSeal Cassettes.			225-13-5B

* Limited shelf-life; contact SKC for more information.

225-401-25/225-401

225-401DB

Specialised DPM Cassette with precision jewelled impactor and two heat-treated quartz fibre filters;

225-317

225-317-SB

225-13-5B

Preloaded Quartz Filters for NIOSH Method 7908

All SKC preloaded filters include supports and are in SureSeal leak-free cassettes that require a SureSeal Cassette Opener.

Diameter (mm)	Filter and Cassette Specifications	Pack Size	Part Number
37	Tissuquartz filter, 2-piece clear plastic casette, banded. For use with method NIOSH 7908.	10	225-9033
Cassette Opener, stainless steel, suitable for 25, 37, and 47-mm filter cassettes. Required for all SureSeal Cassettes.			225-13-5B

225-9033

225-13-5B

Coated Filter 225-9033
Instructions

Cassette and Filter Holders