Material specification
Chinese photovoltaic high-purity quartz sand reference (CN-HPQ-S)
Also known as CN-HPQ-S
A national/industry photovoltaic reference for high-purity quartz sand, reported alongside the IOTA producer grades. Every one of its thirteen figures is a ceiling rather than a typical value, which is what makes it a different KIND of document from a producer datasheet. Its limits are not uniformly tighter or looser than the producer grades: it allows aluminium up to 20 mg/kg where IOTA Standard reports 14, and iron up to 0.5 where IOTA Standard reports 0.3.
Classification
- material entity id
- entity:high-purity-quartz-sand
- issuing body
- Chinese photovoltaic high-purity quartz sand standards, as reported
- grade name
- CN-HPQ-S
- purity basis
- SiO2
- issuing body class
- NATIONAL_OR_INDUSTRY_PROGRAMME
- application entity id
- entity:photovoltaic-quartz-crucible-manufacture
In the knowledge graph
- Chinese photovoltaic high-purity quartz sand reference (CN-HPQ-S) specifies High-purity quartz sand
Record last updated 2026-09-10. Corrections follow the published corrections policy; superseded claims are retained, never silently edited.