From air to soil to water, Environmental Express, HPS and Zefon International are your source for sampling, sample preparation, calibration and analysis. Explore how the Power of 3 can meet your environmental testing needs.
NIOSH Method 7303-Elements by ICP 7303 (Hot Block/HCl/HNO3 Digestion).
HPS manufactures Certified Reference Materials designed to meet the requirements of NIOSH Manual of Analytical Methods, EPA Air Toxics Monitoring Methods, OSHA, ASTM, and similar methods that address the analysis of dissolved and particulate metals in the atmosphere. Our products come with an ISO 17034 Certificate of Analysis. HPS has an extensive history in the manufacture of metals and Beryllium Oxide particulates on filter media. See High-Purity Standards Guide to Industrial Hygiene and Air Monitoring Certified Reference Materials and NIST SRM 1877 – Beryllium Oxide Powder.
You can also see our poster, Determination of Trace Levels of Hexavalent Chromium on Filter Media.
For Calibration/Analysis view our Metals on Filter Media products as well as our Hexavalent Chromium Products.
Hexavalent Chromium Products
These standards are traceable to NIST SRM 3112 for total chromium and a second source standard for the speciated form. ISO 9001:2015 certified, ISO/IEC 17025:2017 and ISO 17034:2016 accredited.
Zefon International Sampling Products
| Part Number | Description |
| 805560 | Escort ELF personal sampling pump with sampling line and 120V charger |
| 738MCE | 37 mm 3-piece Cassette, Clear Styrene, 0.8 µm MCE, 50/box |
| 729MCE-SS | 37 mm 2-piece Styrene Filter Cassette preloaded with a Solu-Sert Filter Capsule and banded, 50/box |
| 7M93M | 37mm 3-piece Air Sampling Filter Cassette re-loaded with 0.8 micron MCE Filters that are matched in weight to within 50µg |
| CLCL-DIS0810 | Disposable Inhalable Sampler (DIS), Cellulose/MCE Filter Capsule, 10/box |
| 735PVC | 37 mm 3-piece Styrene Cassette with 5.0µm PVC Filters and banded with a clear shrink band. 50/box |
| 7P52P-GS | 37 mm 2-piece Styrene Cassette preloaded with 5.0µm Grav-Sert™ filter capsule. 50/box |
| FPVC537 | 37 mm PVC Membrane Filters, 5.0µm, 100/pack |
Environmental Express Sample Collection and Preparation Products
| Part Number | Description |
| SC4250 | GhostWipes – individual sealed, 15cm x 15cm, 1000pk |
| SC4250BE | Be GhostWipes – individually sealed, 2″ x 2.75″,1000pk |
| UC475-NL | UltimateCup™ – 50mL, Natural Linerless Cap, 500pk |
| SC505 | Disposable Watch Glass for 50mL Digestion Cups, 1000pk |
| SC506 | Disposable Reflux Caps for 50mL Digestion Cups, 1000pk |
| SC154 | HotBlock® – 54-Position, 50mL |
| SC1832 | HotBlock® 200 – Controller – 2-Block, Each |
| SC2050-36 | HotBlock® 200 – 36-position, 50mL, 120V (Block Only) |
| SC980 | Temp. Probe w/ PTFE Holder for 50mL Digestion Cup |
| SC0401 | FilterMate™, PTFE, 100pk |
| SC0601 | FlipMate 50, 0.45um PES w/ pre-filter, 100pk |
| EE1010201 | Analytical Balance with Touchscreen, 160g x 0.1mg |
| SC4252 | Lead Wipe Standard in 50mL Rigid Walled Cup, 10pk |
| SC4254 | Lead Wipe Standard in Rigid Walled Cup, 100ppm, 10pk |
| SC4255 | Lead Wipe Standard in Rigid Walled Cup, 200ppm, 10pk |
| SC4256 | Lead Wipe Standard in 100mL Rigid Walled Cup, 10pk |
| F37500PVC | 37 mm PVC Filters with cellulose pads, 5.0µm. 100pk |
| F37501PVC | 37 mm PVC Filters, 5.0µm. 100pk |
| SC160 | StirBase with remote controller for turning your HotBlock into a stirring HotBlock. |
| PW37100 | 37 mm Cellulose support pads, plain white. 100/pk |
If you are looking for a custom product, we are working together to meet your custom requirements.
Looking for a custom filter, we can help you. Click for Filter Custom Quotation.
Need a custom blend? Click for a Custom Blend Quotation.