نقدم الدعم والخدمة لأجهزة القياس الخاصة بك على مدى دورة حياتها بالكامل، بدءًا من التركيب مرورًا بالصيانة الوقائية والمعايرة حتى إصلاح الأجهزة.
Reference standards are substances that enable accurate temperature calibration and adjustment of melting point and dropping point instruments. Each high-purity METTLER TOLEDO calibration substance comes with temperature values that are traceable to primary standards. Calibration substances are provided in the range of 40 – 360 °C and are available as standard or USP reference standards.
With our simple, built-in calibration routines, you can adjust your instrument quickly. Perform a calibration with up to three substances and the instrument automatically calculates the slope and offset values for you.
Each METTLER TOLEDO high-purity reference substance comes with certified temperature values that are traceable to primary standards (LGC, London).
Certified reference substances are provided in the range of 40 – 360 °C to cover the full temperature range for reliable melting, dropping and softening point measurements.
نقدم الدعم والخدمة لأجهزة القياس الخاصة بك على مدى دورة حياتها بالكامل، بدءًا من التركيب مرورًا بالصيانة الوقائية والمعايرة حتى إصلاح الأجهزة.
USP specifies that the measured melting range must
a) Lie within the specified minimum and maximum temperatures (e.g. 81–83 °C for vanillin), and
b) Not be broader than the specified admissible values (e.g. 1.5 °C for vanillin).
So, the permitted measured melting range for vanillin could be 81.0–82.5, 81.3–82.8 °C etc.