PRIMARY REFERENCE SAMPLE FOR NITROGEN ANALYSIS AND FORMATION THEREOF

PURPOSE:To obtain a highly accurate primary reference sample for analysis of nitrogen. CONSTITUTION:In order to obtain this primary reference sample for analysis of nitrogen, a predetermined weight of solid nitrogen compound is sealed in a pure iron or nickel capsule of a predetermined weight in a m...

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Main Authors ONO AKIHIRO, UEKI KAZUHIRO
Format Patent
LanguageEnglish
Published 09.02.1993
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PERFORMING OPERATIONS
PHYSICS
PRESSES
PRESSES IN GENERAL
TESTING
TRANSPORTING
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Abstract PURPOSE:To obtain a highly accurate primary reference sample for analysis of nitrogen. CONSTITUTION:In order to obtain this primary reference sample for analysis of nitrogen, a predetermined weight of solid nitrogen compound is sealed in a pure iron or nickel capsule of a predetermined weight in a manner not to generate gaps. Since the primary reference sample can be pressure-molded easily without generating gaps, no quantitative error die to the nitrogen in the remaining air in the capsule is brought about. Accordingly, it is possible to obtain a highly accurate primary reference sample.
AbstractList PURPOSE:To obtain a highly accurate primary reference sample for analysis of nitrogen. CONSTITUTION:In order to obtain this primary reference sample for analysis of nitrogen, a predetermined weight of solid nitrogen compound is sealed in a pure iron or nickel capsule of a predetermined weight in a manner not to generate gaps. Since the primary reference sample can be pressure-molded easily without generating gaps, no quantitative error die to the nitrogen in the remaining air in the capsule is brought about. Accordingly, it is possible to obtain a highly accurate primary reference sample.
Author UEKI KAZUHIRO
ONO AKIHIRO
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Snippet PURPOSE:To obtain a highly accurate primary reference sample for analysis of nitrogen. CONSTITUTION:In order to obtain this primary reference sample for...
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SubjectTerms INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PERFORMING OPERATIONS
PHYSICS
PRESSES
PRESSES IN GENERAL
TESTING
TRANSPORTING
Title PRIMARY REFERENCE SAMPLE FOR NITROGEN ANALYSIS AND FORMATION THEREOF
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