GB/T 7143-2010 (English Version) PDF

Standard No.: GB/T 7143-2010
Language: Chinese, Available in English version
Release Date: 2010
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 7143-2010
Replace: GB/T 7143-1986

Scope: This standard specifies the preparation and test methods for chemical analysis samples of silica sand for foundry. This standard is applicable to the content analysis of silicon dioxide, aluminum oxide, iron oxide, titanium oxide, calcium oxide, magnesium oxide, potassium oxide, and sodium oxide in foundry natural silica sand, selected quartz sand and artificial quartz sand and the determination of acid consumption value . The juxtaposed measurement methods in this standard can be selected according to specific circumstances.

GB/T 7143-2010 Referenced Document

GB/T 2684 Test methods for foundry sands and molding mixtures
GB/T 601 Chemical reagent.Preparations of reference titration solutions*， 2016-10-13 Update
GB/T 603 Preparation of preparations and products used in chemical reagent test methods*， 2023-08-06 Update
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values