优质锆英石砖 (压制) Pressed Zircon Blocks HPZS-A	优质锆英石砖 (压制) Pressed Zircon Blocks HPZS-B	压制锆英石砖 Pressed Zircon Blocks HPZS-C	异型锆英石砖 Special-shapeZircon Blocks VCZS
ZrO2(%)	≥65	≥65	≥65	≥65
SiO2(%)	≤33	≤33	≤33	≤33
TiO2(%)	≤1	≤1	≤1	≤1
显气孔率(%) Apparent Porosity	≤17	≤18	≤19	≤19
容重(g/cm3) Bulk Density	≥3.90	≥3.80	≥3.75	≥3.75
荷重软化始点T 0.6(℃) Refractoriness under load	≥1700	≥1700	≥1680	≥1670
冷压强度(MPa) Cold Crushing strength	≥100	≥100	≥100	≥100

※所列技术指标均为同牌号产品标准砖的检测数据
All chemical-physical data are obtained based on the corresponding refractory bricks of standard size.

HPZS is a grain type zircon refractory used for superstructures, tuckstones, transition bricks between silica bricks and fused cast AZS blocks, burner blocks, thermalcouple blocks,peep hole blocks, sub--paving blocks and back-up blocks in furnaces for alkali-free glass, soda lime glass, lead glass, borosilicate glass and optical glass.