The first six digits (highlighted in a separate field "TNE")
1 2 3 4 5 6
1 - Type of product: "1" abrasive material; "3" abrasive tool.
2 - Type of bond: "1" - ceramic bond; "2" - bakelite bond.
3 - The third digit is the type of abrasive material
"1" - Electrocorundum normal (grade 14A);
"2" – Electro corundum white (grade 25A);
"5" - Black silicon carbide (grade 54C);
"6" - Green silicon carbide (grade 64C);
4 - The fourth digit is a grain subgroup
"2" - F30 and more
"3" - F36 - F90;
"4" - F100 - F180;
"5" - F220 and finer
5+6 - Name of the grinding tool GROUP
"CUPS" 70,71,72,73,74,75
"RINGS" 76,77,78,79
"PLATES" 80,81,82,83
"DISKS" 84
"BARS" 93
"SEGMENTS" 94,95,96,97,98,99
CUTTING-OFF WHEELS 85,86,87,89
GRINDING DISCS 88
For abrasive material
The second digit is a free "0"
The third and fourth digits are the type and grade of abrasive material
"13" - Electrocorundum normal (grade 13A);
"14" - Electrocorundum normal (grade 14A);
"53" - silicon carbide (grade 53C);
"70" - boron nitride;
"80" - boron carbide;
"90" - ferroalloys (MFS 10, etc.)
The fifth digit is a free "0"
Sixth digit - grain subgroup
"1" - F10 - F30 - grain;
"2" - F100 - F180 - powders;
"3" - F230 - F1200 - micro powders;
"4" - fractions;
"5" - sludge;
"6" - waste.