cylinder information as well as all major gas data and properties. (double valve with submerged pipe for SFC/SFE & SFE high purity).

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Title page: The atmosphereSundown in orbit. The earth’s atmosphere, photographed from an altitude of 300 kilometers during the D-2 Mission (April/May1993). A pink-colored layer can be seen about 15 kilometers high. The color indicates particles of sulfuric acid and ammonium sulfate, caused in turn by an immense presence of sulfur particles Ð released a few days before by the eruption of Mount Pinatubo.Photo with the kind permission of the DLR German Aerospace Center.

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About This CatalogMany fields of application in high-tech-nology industrial processes, research and development, instrumentation and medicine require high-purity gases, high-quality gas mixtures and appropriate gas handling equipment such as efficient pressure regulators and customized gas supply systems.In this catalog we present the broad range of our product lines and services. We also provide a wealth of important and useful information on the safe handling of our products.Should you have any further questions, we will gladly send you additional detailed information. Our team of qualified specialists near you and in our headquarters will solve your specific problems quickly and precisely. Years of experience and a strongly de-veloped sense of quality, safety and en- vironment form the basis for high customer benefits and long-lasting, successful partnerships.

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1ContentQuality, Safety and Environmental Protection . . . . . . . . .3 Ð 5 Pure Gases . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Ð 53 Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Acetylene to Xenon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Ð 53 Gas Mixtures / Calibration Gas Mixtures . . . . . . . . . . .54 Ð 71 Instrumentation Gases . . . . . . . . . . . . . . . . . . . . . . . . . .72 Ð 77 Gases in Small Containers . . . . . . . . . . . . . . . . . . . . . .78 Ð 87 Linde Small Steel Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82 Linde minican¨pressure cans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83 Linde Plastigas¨bags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86 Gas Supply Systems . . . . . . . . . . . . . . . . . . . . . . . . . . .88 Ð 95 Specialty Gas Service . . . . . . . . . . . . . . . . . . . . . . . . .96 – 103 Gas analytical service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .99 Environmentally-compatible disposal and recycling . . . . . . . . . . . . . . .101 Containers for Specialty Gases . . . . . . . . . . . . . . . .104 Ð 115 Information, Tables and Diagrams . . . . . . . . . . . . . .116 Ð 137 Order Processing Information and Terms and Conditions . . . . . . . . . . . . . . . . . . . . .138 Ð 142 Extract from the Linde Product Line . . . . . . . . . . . . . . . . .143

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Quality,Safety and Environmental Protection Quality, safety and environmental protection in the pro- duction, transportation and use of our products are an important part of our corporate philosophy. Our new poli- cy in this field (see overleaf) also defines our responsibili- ty to our customers, employees, the authorities, society at large and the environment. QualityWe introduced a certified quality management system based on ISO 9001 in most of our group companies world- wide. We also meet other specifications, e.g. in the fields of nuclear technology, medicine and pharmacy as well as for the automotive and semiconductor industries. Our specialty gas activities are, therefore, firmly embedded in a comprehensive quality management system. SafetySafety is of essential importance to our work. The aim ofour publications on the characteristics, transportation and handling of our products is to ensure their safe use. Details on this are included in this catalog. Our customer consultants and safety experts will also gladly help you in your individual questions and problems. Environmental protection It is our concern that no harm to the environment emanates from our gases at any stage from production and storage through distribution to use and disposal. We realize this on the basis of applicable laws and in some cases even go beyond them.Integrated QSE Management System withcertificateLinde was the first gas company in Germany to introduce a management system for quality, safety and the environment (QSE) in its operations and to have it certified for all its busi- ness premises according to DIN EN ISO 9001 (quality ma- nagement), SCC (safety management) and DIN EN ISO 14001 (environmental protection management). Meanwhile a number of operative units in other countries followed this example.The aim of our management system is to ensure constant improvement in our internal and external services. We place similar demands on our suppliers, service-providers and sales partners.Customer complaints and deviations from our internal standards are systematically analyzed and detailed corrective and preventative measures introduced. Work processes are regularly checked for efficiency and our employees encour- aged to improve their qualifications. In this way we will con- tinually improve our products, processes and services. Advantages to our customersThe general objectives of our integrated QSE ManagementSystem are: Environmentally safe products and services Safety in their supply and useConstant high product quality Individual, competent adviceConsistent orientation to the needs of our customers5

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