Certified reference standards, BTX, 100 ng, 10/pk. Tenax TA sorbent tubes loaded with benzene, toluene, and o-xylene at a nominal concentration of 100 ng/uL for each. Tubes have a standard shelf life of six months. Tubes are certified traceable to primary standards, contain amounts of analytes accurate to ±3%. Reference standards have a certified shelf-life of six months. BTX CRS tubes are suitable for the majority of environmental applications.
- Unit of Measure:
- EA
