Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
ASTM E1140-95(2005)
Năm ban hành 2005
Publication date
Tình trạng
W - Hết hiệu lực
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Tên tiếng Anh
Title in English Standard Practice for Testing Nitrogen/Phosphorus Thermionic Ionization Detectors for Use In Gas Chromatography
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Chỉ số phân loại Quốc tế (ICS)
By field |
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Số trang
Page 6
Giá:
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Phạm vi áp dụng
Scope of standard 1.1 This practice covers testing the performance of a nitrogen/phosphorus thermionic ionization detector (NPD) used as the detection component of a gas chromatographic system.1.2 This practice applies to an NPD that employs a heated alkali metal compound and emits an electrical charge from that solid surface.1.3 This practice addresses the operation and performance of the NPD independently of the chromatographic column. However, the performance is specified in terms that the analyst can use to predict overall system performance when the detector is coupled to the column and other chromatographic components.1.4 For general chromatographic procedures, Practice E 260 should be followed except where specific changes are recommended in this practice for the use of a nitrogen/phosphorus (N/P) thermionic detector.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific safety information, see Section , Hazards.
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