particle counting

Beckman Coulter Life Sciences provides laboratory instruments, workflow automation, scientific insights, and service support for modern laboratories. With a legacy dating back to 1935, the company serves experts across research, clinical, and biopharmaceutical settings with technologies including flow cytometers, centrifuges, liquid handlers, particle counters, and reagents.

automated cell culturecell countingcentrifugationcontract manufacturingcustom reagent designFlow Cytometryinstrument qualification and calibrationliquid handlingpreventive maintenance

Environmental Safety Professionals (ESP) provides certification, testing, and repair services for fume hoods, biological safety cabinets, laminar flow clean benches, and cleanrooms. ESP is IAFCA certified and a PIPE certified medical gas inspector, offering ASHRAE 110 tracer gas testing, BSL suite testing, respirator fit testing, air sampling, ventilation rate testing, USP <797> compliance services, and indoor air quality investigations.

air samplingASHRAE 110 tracer gas testingbalance calibrationbiological safety cabinet certificationcleanroom sterilizationelectrical safety inspectionsfume hood certificationHEPA filter leak testinglaminar flow clean bench certificationmedical gas testingmicrobial testingmock OSHA inspectionsrespirator fit testingventilation rate testing

Health Systems Sciences (HSS) is a national provider of specialized facility testing, certification, and compliance services for the built environment, serving healthcare, pharmaceutical, laboratory, semiconductor, and manufacturing facilities. HSS is an SDVOSB (service-disabled veteran-owned small business) with certified field engineers who test and monitor cleanrooms, containment cabinets, HVAC systems, and water quality in accordance with standards such as USP 797/800/825, ISO 14644, NSF/ANSI 49, and ASHRAE 170.

airflow analysisbiosafety cabinet and fume hood certificationcleanroom certificationhazardous material assessmentHEPA integrity testingHVAC testing, adjusting and balancingindustrial hygiene exposure monitoringmedical facility and room validationmold and indoor air quality assessmentremote surface samplingwater quality sampling and analysis

Keystone has tested and certified controlled environments for over 25 years, serving over 200 pharmaceutical, university, research, and advanced manufacturing clients across the east coast. The company is 100% founder and employee owned and is a certified minority business enterprise. It tests, certifies, and services cleanrooms, biosafety cabinets, fume hoods, and isolators, and operates an in-house ISO 9001 environmental monitoring laboratory.

biosafety cabinet certificationcalibration servicescleanroom design reviewscleanroom testing and certificationfume hood testingHEPA filter integrity testingisolator and glovebox certificationlaminar flow and clean bench testingmicrobiological testingoperational performance auditsrepair of fume hoods, biosafety cabinets, and HEPA filters