Sampling Plans Evaluation
Oriented to statistical sampling, sampling plan, survey sampling, sampling techniques, sampling methods: systematic sampling, stratified sampling, random sampling, probabilities proportional to size.
http://geocities.com/ResearchTriangle/Facility/1075/POSDEM/

Durcon
Manufactures valves, automatic recirculation, globe, non-return, gate, check valves, butterfly, knife, tank bottom and sampling, special valves, industrial equipment for boilers, turbines and steam distribution systems, control, process.
http://www.durcon-vice.com.br/

Checkfluid Inc.
Checkfluid is a manufacturer of oil sampling valves. We offer oil sampling products to help improve oil analysis results. Increase oil sampling accuracy and convenience.
http://www.checkfluid.com/

ProSys Sampling Systems Ltd.
ProSys Sampling Systems Ltd. Powder Sampling, Liquid Sampling, Pharmaceutical and Chemical Sampling Specialists, Suppliers of Process Analytical Technologies (P.A.T) Containment Gloveboxes, Sampling Products and Services.
http://www.prosys.ie/

George Fischer, Inc.
Manual and actuated valves, diaphragm valves, butterfly valves, pressure regulating valves, y-globe valves and y-pattern strainers.
http://www.us.piping.georgefischer.com/

TS Tanksystem SA
Gauging and sampling equipment for storage tanks and marine vessels. Ball valves. Temperature gauges.
http://www.tanksystem.com

PGI International
Manufactures instrumentation valves, manifolds, direct-mount and sampling systems for the process, power and gas industries.
http://www.pgiint.com

James A Redding Company: Sampling Specialists
James A. Redding produces coal sampling systems, automated sampling systems, nine iron swing sampler, auger sampling systems, primary samplers, secondary samplers, belt feeders, sample crushing, final sample collectors, traveling hopper sampler, sampling, sampler, aggregate samplers, two-Stage sampling systems, three-stage sampling systems and more . Located in Somerset, Pennsylvania.
http://jamesaredding.com/

Red-White Valves
Balancing Valves, Ball Valves, Butterfly Valves, Regulators and Strainers at Red-White Valve Corp in Lake Forest, California
http://www.redwhitevalveusa.com

RITAG Ritterhuder Armaturen GmbH & Co. Armaturenwerk KG
Spezialisiert auf Rückschlagventile, Rückschlagklappen, Schnellschluss-Bodenventile, Probenentnahmeventile und Hochdruck-Ventile, realisiert die RITAG Ritterhuder Armaturen GmbH & Co. auch Hochdruck-Rückschlagventile, Doppelrückschlagklappen, Bodenablassventile, Bodenventile, Ablassventile, Rückschlagarmaturen, Hochdruckventile, Bodenventil, Rückschlagventil und Rückflußverhinderer
http://www.ritag.com/