Crimped Woven Mesh Material :
High carbon steel:45#,50#,55#,60#,70#,65Mn,72A,Stainless steel 304,321,316,2205,2507
Wire diameter: 1.37mm-12.7mm,Our finished wire is inspected by third party SGS,
Tolerance+_0.03mm .
Aperture/Opening:from 2mm to 100mm,tolerance +-3%
1.Aperture error:<3%,which is better than international standards ;
2.Wire diameter error :+-3%;
3.Diagonal error:<9mm every 2m .
Weaving Types :double crimped
screen,single intermediate crimp screen,double intermediate crimp
screen,lock crimp screen,flat top screen,pressure welded screen .
As
a highly-accomplished wire mesh exporter, Kingdelong was established
jointly by China and South Korea in 1986, Our strategic location in
Anping County,Hebei province is only 300KM away from Beijing and
Tianjin, which offers us very competitive advantages both in trade and
logistics. Through two decades of hard work, Kingdelong company had
evolved into one of China`s largest wire mesh manufacturing
companies,Covering an area of over 200,000㎡, certificated by ISO 9001
& ISO 14001,as well as more than 450 diversified production
machines, which are either imported from foreign countries or developed
in-house.Wire mesh products find applications in a wide range of
industries, from Pharmacy to petroleum and chemical to textile. Decorative Metal Mesh,Metal Mesh Curtain,Decorative Ring Mesh,Flexible Metal Mesh Curtain ANPING KINDELONG WIRE MESH CO.,LTD. , https://www.apkdlwiremesh.com
2. Calibration conditions 2.1 Main technical specifications Measurable range: The water content in the test sample is 10 μg to 100 mg water.
Sensitivity was measured: 0.1 μg water.
Accuracy: (Reproducibility) The coefficient of variation of 1 mg of water measured in methanol was 0.3%.
Background (drift): Automatic compensation. The background level is always shown on the display.
2.2 Calibration conditions Ambient temperature: 20±10°C
Relative humidity: 40% to 80%
3, calibration method 3.1 until the instrument background (drift) is stable, and shows "Stable" (highly accurate measurement ready), only to start with pure distilled water correction.
3.2 Use a needle with a rubber cap to weigh distilled water (0.007-0.01g), rapidly inject into the titration cell where the <START> key has been pressed, and press the <SIZE> key. The display of the moisture analyzer displays “Lot?†and press <ENTER>. Press the key to confirm that the weight of the last mentioned sample appears on the display. Press the <-> key and enter the weight of the sample just stated on the balance. Press the <ENTER> key to confirm. “Wt2?†is displayed. Press ENTER key again to display the pre-titration countdown. When the titration reaction is over, the system will automatically alarm and display the result and print it out.
4. Calibration results processing and calibration cycle 4.1 Calibration results Processing calibration must be repeated 2 or 3 times. The measured value ≤ 3% indicates that the instrument is working properly. If the measured value is greater than 3%, check whether the electrolytic cell is sealed and used on the electrolytic cell. Whether the silica gel is discolored and water-absorbed, whether the electrolyte fails, and whether the electrode is contaminated. The silicone should be replaced and the electrode cleaned on a regular basis.
4.2 Qualified instruments shall be affixed by the technical team to the “certificate of approval†and shall be used. Unqualified instruments shall be marked “disabled†by the technical team and stored in isolation. The original records of the calibration shall be completed and archived in a timely manner.
4.3 This calibration work requires 2 times a month.
5, the calibration record
Karl Fischer Coulometric Analyzer Calibration Specification
1. Subject Content and Scope of Application This specification specifies the technical requirements and calibration procedures for calibration of the DL37 Karl Fischer Coulometric Analyzer from METTLER TOLEDO.