GB/T 4984-2007
Chemical analysis of refractories containing zirconia (English Version)

Standard No.

GB/T 4984-2007

Language

Chinese, Available in English version

Release Date

2007

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2024-07

Replace By

GB/T 4984-2023

Latest

GB/T 4984-2023

Replace

YB/T 4078.1-2003 YB/T 4078.2-2003 GB/T 4984-1985 GB/T 14350-1993

Scope

This standard specifies the chemical analysis methods for zirconium-containing refractory materials. The items analyzed in this standard are as follows: a) Loss on ignition (LOI); b) Silicon dioxide (SiO₂); c) Aluminum oxide (Al₂O₃); d) Zirconia (Hf) oxide (Zr(Hf)O₂); e) Titanium dioxide (TiO₂); f) Iron oxide (Fe₂O₃) ; g) potassium oxide (K₂O); h) sodium oxide (Na₂O); i) calcium oxide (CaO); j) magnesium oxide (MgO); The determination range of elements is shown in Table 1.

GB/T 4984-2007 Referenced Document

• GB/T 10325 "Shaped refractory products—Rule of acceptance,sampling and inspection"
• GB/T 12805-1991 Laboratory glassware--Burettes
• GB/T 12806-1991 Laboratory glassware-one-mark volumetric flasks
• GB/T 12808-1991 Laboratory glassware--One-mark pipettes
• GB/T 17617-1998 Refractory products--Sampling of raw materials and unshaped products
• GB/T 7728-1987 Chemical analysis of metallurgical products--General rule for flame atomic absorption spectrometric methods
• GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values*， 2008-07-16 Update

GB/T 4984-2007 history

• 2023 GB/T 4984-2023 Chemical analysis of refractories containning zirconia
• 2007 GB/T 4984-2007 Chemical analysis of refractories containing zirconia
• 1985 GB/T 4984-1985 Chemical analysis methods of zirconia-alumina refractories

GB/T 4984-2007 Chemical analysis of refractories containing zirconia has been changed from YB/T 4078.1-2003 Chemical analysis of zirconia refractories-Part 1:Determination of zirconia oxide-Mandelic acid gravimetric method.

GB/T 4984-2007 Chemical analysis of refractories containing zirconia has been changed from YB/T 4078.2-2003 Chemical analysis of zirconia refractories-Part 2:Determination of zirconia oxide-EDTA volumetric method.

GB/T 4984-2007 Chemical analysis of refractories containing zirconia has been changed from GB/T 14350-1993 Chemical analysis methods for zircon refractories.