Standards

JB/T 7945-1999 Abolished

JB/T 7945-1999 Methods for testing the mechanical properties of grey cast iron

Publish Date: 1999-06-24

JB/T 10045.1-1999 Abolished

JB/T 10045.1-1999 Thermal cutting—Methods and classification

Publish Date: 1999-06-24

JB/T 4378.2-1999 Abolished

JB/T 4378.2-1999

Publish Date: 1999-06-24

JB/T 9220.7-1999 Active

JB/T 9220.7-1999 Chemical analysis methods for acid slay of cupola-Determination of calcium oxide by volumetric method using potassium permanganate

Publish Date: 1999-06-24

JB/T 9220.8-1999 Active

JB/T 9220.8-1999 Chemical analysis methods for acid slay of cupola-Determination of magnesium oxide by DDTC separation process and EDTA volumetric method

Publish Date: 1999-06-24

JB/T 4378.1-1999 Abolished

JB/T 4378.1-1999 Metal Cold Stamping Components Structural Elements

Publish Date: 1999-06-24

JB/T 7948.12-1999 Abolished

JB/T 7948.12-1999 Methods for chemical analysis of melted welding fluxes The EDTA volumatric method for determination of calcium oxide and magnesium oxide content

Publish Date: 1999-06-24

JB/T 7948.7-1999 Abolished

JB/T 7948.7-1999 Methods for chemical analysis of melted welding fluxes The lead chlorofluoride-EDTA volumetric method for determination of calcium fluoride content

Publish Date: 1999-06-24

JB/T 9220.5-1999 Active

JB/T 9220.5-1999 Chemical analysis methods for acid slay of cupola-Determination of aluminium oxide by volumetric method using sodium f luoride - EDTA

Publish Date: 1999-06-24

JB/T 10045.3-1999 Active

JB/T 10045.3-1999 Thermal cutting—Quality and demensional deviation im the gas cutting

Publish Date: 1999-06-24

JB/T 7948.4-1999 Abolished

JB/T 7948.4-1999 Methods for chemical analysis of melted welding fluxes The EDTA volumetric method for determination of aluminium oxide content

Publish Date: 1999-06-24

JB/T 7948.11-1999 Abolished

JB/T 7948.11-1999 Methods for chemical analysis of melted welding fluxes The direct combustion-iodimetric method for determination of sulfur content

Publish Date: 1999-06-24