Technical Note 01 Version 1.6 20 July 2013 WRH Uniphos gas detector tube users

SPL, Inc., Houston, TX U.S. Domestic SPL, Inc., Pleasanton, TX Alliance Pest Solutions, Theodore, AL Thigpen Energy Services, Cut and Shoot, TX Atmos Energy, Katy, TX XTO Energy, Indiana, PA BASF Chemicals, Geismar, LA Best Asphalt, Stafford, TX International (Outside U.S. & ) Chesapeake Energy Corp., TX Accurate Detection Pty Ltd, Australia Chesapeake Energy Corp., Jane Lew, WV Acheta, UK CNG Gas, Indiana, PA Agrofum S.A, Argentina Consol Energy, Jane Lew, WV Analitica Strumenti s.r.l, Italy Devon Energy Corp., USA BASF Chemicals, LA, USA DOD Technologies, Inc. USA Cdbrasil Fumigacoes Ltda, Brazil Dominion Transmission, Clarksburg, WV Cerexagri s.a.s. France El Paso Corp., TX Clemence Malilo, Zambia (MRB) Enterprise Products, Sabine Pass, TX DTW International (Pvt) Ltd, Srilanka Energy Transfer, San Antonio, TX Ecuaquimica C.A, Guayaquil, Ecuador EOG Resources, USA Fax Mexico, S.A. de C.V, Mexico Equitable Gas, Pittsburg, PA FOS System S.R.L., Argentina EQT, Weston, WV Genera Ltd, New Zealand Exco Resources, Warrendale, PA Japan Tobacco Inc. Japan Formosa Plastics, Point Comfort, TX Jose Huertas (Sensors Direct, UK) Is Gas, Houston, TX Moon Trading Sdn. Bhd, Malaysia Kinder Morgan, TX MRB Scientific Ltd, UK Kriebel Gas, Clarion, PA MRB Scientific Ltd, Zambia Lyondellbasell Chemical, Pasadena, TX Nuron Import & Manufacture Co. Ltd, Israel Multichem, Billey, TX Polysource Techstore, Thailand PDC Moutaineer, Bridgeport, WV Pt. Nugroho Pratama Chemica Asia, Indonesia Peoples TWP LLC, Bulter, PA Pt. Nugroho Pratama Chemica Asia, Jakarta Research Fumigation, Reserve, LA Reaktie Safety Shops BV, Netherlands Research Fumigation, Pearland, TX SGS Ltd, Bangkok, Thailand Royal Fumigation, New Castle, DE United Phosphorus Limited, ( Amman - Jordan) Samson Oil & Gas, USA United Phosphorus Limited, Japan Seneca Resources, Brookville, PA Universal Pesticides Trdg. Co. L.L.C, Dubai Spectra Energy, Uniontown, PA SPL, Inc., Carthage, TX uniphosamericas.com 1

Indian Domestic ECIL, Dir. of Purchase & Stores, Hyderabad Aarti Industries Ltd, Boisar Eco Chem sales & Service, Aditya Environmental Services Ltd, Mohopada Eco Valley Farms & Foods Ltd, Pune Agrochem Marine Services Pvt. Ltd, Chennai Effectech Gas Pvt. Ltd, Boisar Ami Corporation, Vapi Elastomer Lining Works, Ambernath Aqua & Arthropods Pest Control Ltd, Chennai Eliokem India Pvt. Ltd, Bharuch Asian Test Equipments, Ghazibad Elite Corporation, Aunde Faze Three Autofab Ltd, Dadra Envirocon, Digboi - Assam Auto Fibre Craft, Jharkhand Escorts Limited, Uttaranchal Avadh Rubber Madras Elastomers, Lucknow Excel Composites P Ltd, Bangalore Test House, Banglore Excel Crop Care Limited, Gajod Basant Rubber Factory Ltd, Mumbai. Excel Crop Care Ltd, BG Exploration and Prod. India Ltd, Mumbai Excel Crop. Care Limited, Gajod Bharat Petroleum Corporation Ltd, Ernakulam Exim Fumigation Services, Hooghly Bharuch Enviro Infrastructure Ltd. Ankleshwar Flexo Foam Pvt. Ltd, Haryana Bilag Industries Ltd, Vapi Flexo Foam Pvt. Ltd, New Delhi Bombay Burmah Trading Corp Ltd, Uttaranchal G.T. Pest Control Co, Pune Capital Laminates Pvt. Ltd. Noida Ganpati Pest Control Services, Cemon Railway Industries, New Delhi Ghosh Scientific, Kolkata Central Warehousing Corporation, Kochi Glasschem Trading, Ankleshwar Central Warehousing Corporation, Valvada. Glenmark Generics Ltd, Ankleshwar Champion Jointing Pvt. Ltd, Vapi Global Fumitech, Hyderabad Chembond Chemicals Ltd, Navi Mumbai Golwilkar Metropolis Health Service Ltd, Pune Chennai Petroleum Corporation Ltd, Chennai Goyolene Fibres (India) Pvt. Ltd, Silvassa Choudhary Trading Corporation, Indore Grindwell Norton Limited, Raigad Cipla Ltd, Verna Salcetta GSPC Gas Company Ltd, Composite Boards Pvt. Ltd, Chennai GSPC Gas Company Ltd, Vapi Consultancy Services, Udaipur GT Pest Control Co. Pune Cori Engineers Pvt. Ltd, Chennai Agrochem Ltd, Bharuch CTX Lifesciences Pvt. Ltd, Surat Gujarat Chem. Port Terminal Co. Ltd, Bharuch D.S.S. Construction Company, Mumbai Gujarat Narmada Valley Fert. Co. Ltd, Bharuch DCM Shriam Industries Limited, Meerut Gujarat Pollution Control Board, Debio Pest Control, Bhilwara Gujarat Sidhee Cement Limited, Debio Pest Control. Rajasthan Gujarat State Fertilizers & Chem Ltd, Baroda Deepak Fertilisers & Petrochem., Ltd. Taloja Gujarat State Fertilizers & Chem Ltd, Directorate of Purchase & Stores, Baroda Gumpro Drilling Fluids Pvt. Ltd, Mumbai Dorf Ketal Chemicals India Pvt. Ltd, Raigad Heubach Colour Pvt. Ltd, Ankleshwar Dows IPM Services Co, Kochi, Kerala Hindustan Petroleum Corporation Ltd, Mumbai Drof Ketal Chemicals India Pvt. Ltd, Raigad IFB Agro Industries Limited, Paraganas (South) Durable Polymers, Lucknow Imperial Pest Control, Satara

uniphosamericas.com 2

Indian Additives Ltd, Chennai Mazda Enterprise, Navi Mumbai Indian Additives Ltd, Tamil Nadu Mehta & Sanghvi & Company, Kolkata Indian Navy INS Shankush Milton Industries Ltd, Indian Oil Corporation Ltd, Mathura Mr. P.B. Menon, Thane Industrial Equipments, Assam Nation Techno Pest Control. Nashik Inox Air Products Ltd, Bhopal National Bulk Handling Corp. Ltd, Aurangabad Inox Air Products Ltd, Butibori National Bulk Handling Corp. Ltd, New Delhi Inox Air Products Ltd, Dolvi National Bulk Handling Corp. Ltd, Pimpri Inox Air Products Ltd, Jharkhand National Bulk Handling Corp. Ltd. Delhi Inox Air Products Ltd, Medak National Bulk Handling Corp. Ltd. Mumbai Inox Air Products Ltd, Navi Mumbai Nat. Collateral Management Svcs Ltd, Jodhpur Inox Air Products Ltd, Raigad Nat. Collateral Managmt. Svcs Ltd, New Delhi Inox Air Products Ltd, Surat Nat. Pest Control & Fumigation Svcs, Nashik Inox Air Products Ltd, Visakhapatnam National Pest Control, Raigad International Crops Research Inst., Patancheru Nature Care Engineers, Surat Inventaa Chemicals Ltd, Andhra Pradesh Naval Dockyard, Mumbai Ipca laboratories Ltd, Ratlam NCL, Pune Jagatjit industries Ltd, Punjab Nirma Ltd, Vadodara Jardine Henderson Limited, Guntur Oil & Natural Gas Corporation Ltd., Mehsana Jardine Henderson Limited, Kolkata Oncquest Laboratories Ltd, New Delhi Jaya Shree Textiles, West Bengal Opal pest Control, Raigad Jaya ShreeTextiles, Hooghly Origo Commodities & Collateral Mgt Svcs, Kota Jubilant Organosys Limited, Mysore P I Industries Limited, Ankleswar Kadam Environmental Consultants, Vadodara P I Industries Ltd, Panoli Kanoria Chemicals & Ind. Ltd. Ankleshwar P.D.Hinduja National Hospital & Medical Research Centre, Mumbai Karni Pest Control Pvt. Ltd, Rajasthan Pest Control (I) Pvt. Ltd, Dehradun Krishak Bharati Cooperative Limited, Surat Pest Control (I) Pvt. Ltd, Delhi La Fumigation Pvt. Ltd, Navi Mumbai Pest Control (I) Pvt. Ltd, Indore LabGuard India Pvt. Ltd, Raigad Pest Control (I) Pvt. Ltd, Kakinada Larsen & Toubro Limited, Panipat Pest Control (I) Pvt. Ltd, Nashik Laxmi Organic Industries Ltd. Raigad Pest Control (I) Pvt. Ltd, Thane Lokmanya Medical Research Centre, Pune Pest Control (India) Pvt. Ltd., Cochin. Lubrizol Adv Materials India Pvt. Ltd, Vadodara Pest Control (India) Pvt. Ltd., Thane Aldehydes & Chems. Ltd, Raigad Pest Control M Walshe, Delhi Malati Insecticide & Company, Kolkata Pest Control M Walshe, Gandhidham Mangalore Refinery & Petrochem., Mangalore Pest Control M Walshe, Mumbai Mark Safety Appliances, Vadodara Pest Control Poona, Pune Marvel Vinyls Ltd, Delhi Pest Control Services, Haryana Material Organisation, Mumbai Pest Mortem (India) Pvt. Ltd, Mumbai Mayur Uniquoters Limited, Jaipur Pest World, Vashi uniphosamericas.com 3

Phisa Stores Suppliers, Mazgaon Shreeyans Engineers, Thane PI Industries Ltd, Bharuch Southern Petrochem. Ind. Corp. Ltd, Tuticorin Piramal Healthcare Ltd, Chennai Spa Technical Services Pvt. Ltd, Mumbai Pirmal Diagnostic Services Pvt. Ltd, Mumbai Spancan N Equipment, Kolkata Polltech Instruments, Mumbai Spectro Analytical Labs Ltd, New Delhi Pollucon Laboratories Pvt. Ltd, Surat Spectrum Dyes & Chemicals Pvt. Ltd, Surat Prabhat Industries, Spray ′ N ′ Gay Pest Services Prakruti Enviromental Engineers, Vadodara Sree Pest Control Services, kakinada Premier Polyfilm Ltd, Ghazibad St. John Freight Systems Ltd, Guntur Premier Polyfilm Ltd, Sahibad St. John Freight Systems Ltd, Tuticorin Premier Polyfilm Ltd, Uttar Pradesh Subham Safety Engineers, Secunderabad Prime Gases, Bangalore Subham Safety Solutions, Vizag Prof. K.G. Bhattacharyya, Gauhati University. Sudarshan Chemical Industries Ltd, Raigad Pry Pest Control, Mumbai Sukhar Exim Pvt. Ltd, Punjab Laminates Pvt. Ltd, Punjab Sun Chemodeal, Aurangabad R.B. Polymers Ltd, Ahmedabad Sun Pharmaceuticals Industries Ltd, Panoli Racold Thermo Ltd, Pune Sun Teknolozy, Chennai Radiant Cables, Hyderabad Suncrest Industries, Kolkata Raja Agencies, Tuticorin Suncrest Industries, Parganas Rashtriya Chems & Fertilizers Limited, Mumbai Sunil Industries Limited, Dombivli Regional Labour Institue, Kanpur Surti Pest Control Service, Ahmedabad Regional Occupational Health Centre, Kolkata Tamil Nadu Coop. Oil Seeds Growers, Chennai Reliance Industries Limited, Baroda Terra-Firma Environ. Consultants Pvt. Ltd, Goa Reliance Petroleum Limited, Jamnagar Western India Plywoods Ltd, Kannur Responsive Industries Ltd, Thane Torrent Pharmaceuticals Limited, Mehsana Rotam India Ltd, Vapi Torrent Pharmaceuticals Ltd. Ahmedabad Rovin Corporation, Boisar Torrent Pharmaceuticals Ltd. Indrad Royal Cushions Vinyl Products Ltd, Baroda Toyo Engineering India Ltd, Panipat RSWM Limited, Banswara Trinity Electric Syndicate Pvt. Ltd, Mumbai S.G.S India Pvt. Ltd, Kolkata Truly Pest Solution Pvt. Ltd, Kolkata S.M. Pest Control, Navi Mumbai Truly Solutions, New Delhi Sai Pest Management, Aurangabad Ultra - Tech, Thane Sajjan India Limited, Bharuch Unik Labs, Pune Saraswati Fumigation Services, Gandhidham Unimark Remedies Ltd, Ahmedabad SGS India Pvt. Ltd, Chennai Unimark Remedies Ltd, Vapi SGS India Pvt. Ltd, Kolkata Unique Pest Control, Kolkata Shakshi Pest Control Services, Mumbai United Phosphorus Limited, Ankleshwar Shatabdi Pest Control, Ratlam United Phosphorus Limited, Jhagadia Shree Enterprises, Kolkata United Phosphorus Limited, Vapi Shreeram Fertilizers & Agrochemicals, Raigad United Phosphorus Ltd. Jhagadia

uniphosamericas.com 4

Universal Agency. Mumbai Usha Fire Safety Equipments Ltd, Chennai Usha Fire Safety Equipments Ltd, Coimbatore Usha Fire Safety Equipments Ltd, Mumbai Uttam Laminates Pvt. Ltd, Kolkata Vaibhav Equipment Service, Ahmedabad Valley Valvatte Pvt. Ltd, Ahmedabad Varshinis En - Test Labs Ltd, Tamil Nadu Varshinis En-Test Labs Ltd, Chennai Veekay Test Lab, Mumbai Vighnahar Pest Control, Pune Vijay Sabre Safety Pvt. Ltd, Silvassa Vimta Labs Limited, Hyderabad Vinroyal Plasticoates Pvt Ltd, Panchmahal Vinroyal Plasticoates Pvt. Ltd, Halol Vitalife Laboratories, Haryana VJS Fumigation Services, Tuticorin Weikfield Foods Pvt. Ltd, Pune Wockhardt Limited, Ankleshwar Wolkem Consultancy Services, Udaipur Wonder Laminates Pvt. Ltd, Kolkata

For more information contact Uniphos Americas Tel: 1-844-247-0450

uniphosamericas.com 5