pH值测定用缓冲溶液制备方法
Preparation method of buffer solutions for the measurement of pH value
2011-10-31
GOST 17227-1971
рН-метрия. Таблетки для приготовления рабочих буферных растворов
pH测量 用于制备工作缓冲溶液的片剂
DIN 19266
pH measurement - Reference buffer solutions for the calibration of pH measuring equipment
pH测量.pH测量设备校准用参考缓冲溶液
2015-05-01
BS ISO 23496-2019
Determination of pH value. Reference buffer solutions for the calibration of pH measuring equipment
pH值的测定 pH测量设备校准用参考缓冲溶液
2019-07-16
ISO 23496-2019
Determination of pH value — Reference buffer solutions for the calibration of pH measuring equipment
pH值的测定 pH测量设备校准用参考缓冲溶液
2019-07-12
ISO 23497-2019
Determination of pH value — Technical buffer solutions for the calibration of technical measuring installations
pH值的测定.技术测量装置校准用技术缓冲溶液
2019-07-12
BS 7755-3.12-1996
Soil quality. Chemical methods-Determination of the potential cation exchange capacity and exchangeable cations using barium chloride solution buffered at pH = 8.1
土壤质量 化学方法 用pH=8.1的氯化钡缓冲溶液测定潜在阳离子交换容量和可交换阳离子
1996-02-15
GOST 8.135-2004
Государственная система обеспечения единства измерений. Стандарт-титры для приготовления буферных растворов - рабочих эталонов рН 2-го и 3-го разрядов. Технические и метрологические характеристики. Методы их определения
确保测量一致性的状态系统 用于制备缓冲溶液的标准材料的重量淀粉 - 第2和第3类工作pH标准 技术和计量特征 测定方法
2004-12-08
UNE 55539-14-1995
SURFACE ACTIVE AGENTS. METHODS FOR PREPARATION, STANDARDIZATION AND STORAGE OF STANDARD SOLUTIONS TO BE USED IN VOLUMETRIC ANALYSIS OF SURFACE ACTIVE AGENTS AND FORMULLATIONS CONTAINING THEM. PART 14: STANDARD SOLUTIONS WITH BUFFERED PH.
表面活性剂 表面活性剂及其制剂容量分析用标准溶液的制备、标准化和储存方法 第14部分:缓冲PH值的标准溶液