These are sampling cups with acurate thermocouple assembly and Tellurium blob to get more reliable Thermal Analysys results - CE, C, Si. These are especially made for High Carbon equivalent of Cast Iron giving consistent & accurate C & Si readings. 

TECHNICAL SPECIFICATIONS
Special Thermocouple Tolerance : ± 1 degrees Celsius  at 1200 degrees Celsius
Resin content : 3.5%
Moisture content : 0.5% Min.
Core Hardness : 80-100 CHN
Shelf Life : 6 Months Min.

PRODUCT INGREDIENTS
Resin coated sand, Straight Quartz tube, T1 & T2 Thermocouple wires and sealing cement.

PHYSICAL AND CHEMICAL CHARACTERISTICS
APPEARANCE : Browinish Yellow in Colour.
BOILING POINT : N/A
PHYSICAL STATE : Insoluble
MELTING POINT : N/A
SAFETY PRECAUTIONS IN HANDLING AND STORAGE
FRAGILE MATERIAL [ HANDLE WITH CARE ], METACUP SHOULD BE KEPT IN DRY PLACE WITH A PLASTIC COVER TO PREVENT FROM BREAKAGE METACUP SHOULD BE KEPT IN A RACK .