现行

BS EN ISO 6974-2-2012

Natural gas. Determination of composition and associated uncertainty by gas chromatography-Uncertainty calculations
天然气 用气相色谱法测定成分和相关不确定度

2012-10-31

现行

KS I ISO 6974-2(2020 Confirm)

천연가스－가스 크로마토그래피법에 의한 정의된 불확도와 조성의 측정－제2부：측정 시스템의 특성과 데이터 처리를 위한 통계
天然气用气相色谱法测定具有规定不确定度的组分第2部分:测量系统特性和数据处理统计

2015-12-31

现行

GOST 31371.7-2020

Газ природный. Определение состава методом газовой хроматографии с оценкой неопределенности. Часть 7. Методика измерений молярной доли компонентов
天然气 通过气相色谱法测定具有明确不确定性的组成 第7部分组分摩尔分数的测定程序

现行

KS I ISO 6974-2

천연가스 — 가스크로마토그래피에 의한 조성 및 관련 불확도 측정 — 제2부: 불확도 계산
天然气.用气相色谱法测定成分和相关不确定度.第2部分:不确定度计算

2022-12-23

现行

ISO 6974-2-2012

Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 2: Uncertainty calculations
天然气——气相色谱法测定成分和相关不确定度第2部分:不确定度计算

2012-05-15

现行

GB/T 27894.2-2020

天然气 用气相色谱法测定组成和计算相关不确定度 第2部分：不确定度计算
Natural gas—Determination of composition and associated uncertainty by gas chromatography—Part 2: Uncertainty calculations

2020-09-29

现行

UNE-EN ISO 6974-1-2003

Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 1: Guidelines for tailored analysis. (ISO 6974-1:2000)
天然气.用气相色谱法测定规定不确定度的成分.第1部分:定制分析指南 （ISO 6974-1-2000）

2003-01-17

现行

BS EN ISO 6974-1-2012

Natural gas. Determination of composition and associated uncertainty by gas chromatography-General guidelines and calculation of composition
天然气 用气相色谱法测定成分和相关不确定度

2013-04-30

现行

GOST 31371.2-2020

Газ природный. Определение состава методом газовой хроматографии с оценкой неопределенности. Часть 2. Вычисление неопределенности
天然气 - 通过气相色谱测定组合物和相关不确定度 - 第2部分:不确定度计算

现行

BS EN ISO 6974-3-2018

Natural gas. Determination of composition and associated uncertainty by gas chromatography-Precision and bias
天然气 用气相色谱法测定成分和相关不确定度

2018-12-06

现行

KS I ISO 6974-1(2020 Confirm)

천연 가스 — 가스 크로마토그래피에 의한 조성 및 관련 불확도 측정 — 제1부 : 일반 지침과 조성의 계산
天然气用气相色谱法测定规定不确定度的组分第1部分:定制分析指南

2015-12-31

现行

ISO 6974-1-2012

Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 1: General guidelines and calculation of composition
天然气——气相色谱法测定成分和相关不确定度第1部分:一般指南和成分计算

2012-05-15

现行

GB/T 27894.1-2020

天然气 用气相色谱法测定组成和计算相关不确定度 第1部分：总导则和组成计算
Natural gas—Determination of composition and associated uncertainty by gas chromatography—Part 1: General guidelines and calculation of composition

2020-09-29

现行

UNE-EN ISO 6974-2-2003

Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 2: Measuring-system characteristics and statistics for processing of data. (ISO 6974-2:2001)
天然气.用气相色谱法测定规定不确定度的成分.第2部分:数据处理用测量系统特性和统计学 （ISO 6974-2-2001）

2003-01-17

现行

KS I ISO 6974-3

천연가스 — 가스 크로마토그래피에 의한 조성 및 관련 불확도의 측정 —제3부: 정밀도와 편의
天然气.用气相色谱法测定成分和相关不确定度.第3部分:精密度和偏差

2021-05-14

现行

ISO 6974-3-2018

Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 3: Precision and bias
天然气 - 气相色谱法测定组成和相关不确定度 - 第3部分:精密度和偏差

2018-10-16

现行

GB/T 27894.3-2023

天然气 用气相色谱法测定组成和计算相关不确定度 第3部分：精密度和偏差
Natural gas—Determination of composition and associated uncertainty by gas chromatography—Part 3: Precision and bias

2023-03-17

现行

BS 10/30203803 DC

BS ISO 6974-2. Natural gas. Determination of composition and associated uncertainty by gas chromatography. Part 2. Uncertainty calculations
BS ISO 6974-2 天然气 用气相色谱法测定成分和相关不确定度 第二部分 不确定性计算

2010-04-20

现行

BS EN ISO 6974-6-2008

Natural gas. Determination of composition with defined uncertainty by gas chromatography-Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns
天然气 用气相色谱法测定具有规定不确定度的成分 用三根毛细管柱测定氢、氦、氧、氮、二氧化碳和C1至C8碳氢化合物

2009-04-30

现行

BS ISO 6974-6-2002

Natural gas. Determination of composition with defined uncertainty by gas chromatography. Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns
天然气 用气相色谱法测定具有规定不确定度的成分 用三根毛细管柱测定氢、氦、氧、氮、二氧化碳和C1至C8碳氢化合物

2002-11-07