色漆和清漆 涂料中水分含量的測定 氣相色譜法 色漆和清漆 涂料中水分含量的測定 氣相色譜法 詳細信息:
名稱:毛細管柱
固定相:鍵合聚苯乙烯-二乙烯苯
型號:HH-PLOT-Q
規(guī)格:25m*0.53mm*10um
材質:石英彈性毛細管
應用: 色漆和清漆 涂料中水分含量的測定 氣相色譜法
1、范圍 本標準規(guī)定了一種使用氣相色譜測定水性涂料及其原材料中水分含量的方法。該測試方法的優(yōu)選工作范圍為水分的質量分數(shù)15%-90%,但該方法也可以在此范圍之外使用。 2、主要技術內容 本標準主要針對涂料中的水分含量測定方法進行介紹。主要技術內容包括:氣相色譜儀系統(tǒng)(包括進樣系統(tǒng)、柱箱、檢測器、毛細管柱、注射器、數(shù)據(jù)處理、樣品瓶、氣體過濾器、載氣)具體要求;內標、稀釋溶劑、水、分子篩等試劑和材料的要求、處理方法及使用方法;樣品取樣、氣相色譜儀系統(tǒng)條件優(yōu)化、稀釋溶劑中水分含量、校準、樣品制備(稱樣量要求)、水分含量測定等主要測試步驟。
Paints and varnishes - Determination of moisture content in coatings - Gas chromatography
Paints and varnishes - Determination of moisture content in coatings - Gas chromatography Details:
Name: capillary column
Stationary Phase: Bonded Polystyrene-divinylbenzene
Model: HH-PLOT-Q
Specifications: 25m*0.53mm*10um
Material: Quartz elastic capillary
Applications: Paints and varnishes Determination of moisture content in coatings Gas chromatography
1. Scope This standard specifies a method for the determination of moisture content in water-based coatings and their raw materials using gas chromatography. The preferred working range for this test method is 15%-90% moisture by mass, but the method can also be used outside this range. 2. Main technical content This standard mainly introduces the method for the determination of moisture content in coatings. The main technical contents include: specific requirements for gas chromatograph system (including sampling system, column box, detector, capillary column, syringe, data processing, sample bottle, gas filter, carrier gas); internal standard, dilution solvent, water, Requirements for reagents and materials such as molecular sieves, processing methods and usage methods; sample sampling, optimization of gas chromatograph system conditions, moisture content in diluting solvents, calibration, sample preparation (sample weighing requirements), moisture content determination and other main test steps.