Standards

GB/T 3257.23-1999 Abolished

GB/T 3257.23-1999 Methods for chemical analysis of bauxite—Determination of organic carbon content—Titrimetric method

Publish Date: 1999-08-30

GB/T 3257.24-1999 Abolished

GB/T 3257.24-1999 Methods for chemical analysis of bauxite—Determination of hydroscopic moisture in analytical samples—Gravimetric method

Publish Date: 1999-08-30

GB/T 3257.3-1999 Abolished

GB/T 3257.3-1999 Methods for chemical analysis of bauxite—Determination of silicon dioxide content—Molybdenum blue photometric method

Publish Date: 1999-08-30

GB/T 3257.4-1999 Abolished

GB/T 3257.4-1999 Methods for chemical analysis of bauxite—Determination of iron oxide content—Dichromate titrimetric method

Publish Date: 1999-08-30

GB/T 3257.5-1999 Abolished

GB/T 3257.5-1999 Methods for chemical analysis of bauxite—Determination of iron oxide content—Orthophenanthroline photometric method

Publish Date: 1999-08-30

GB/T 3257.6-1999 Abolished

GB/T 3257.6-1999 Methods for chemical analysis of bauxite—Determination of titanium dioxide content—Diantipyrylmethane photometric method

Publish Date: 1999-08-30

GB/T 3257.7-1999 Abolished

GB/T 3257.7-1999 Methods for chemical analysis of bauxite—Determination of calcium oxide content—Flame atomic absorption spectrophotometric method

Publish Date: 1999-08-30

GB/T 3257.8-1999 Abolished

GB/T 3257.8-1999 Methods for chemical analysis of bauxite—Determination of magnesium oxide content—Flame atomic absorption spectrophotometric method

Publish Date: 1999-08-30

GB/T 3257.9-1999 Abolished

GB/T 3257.9-1999 Methods for chemical analysis of bauxite—Determination of potassium oxide and sodium oxide content—Flame atomic absorption spectrophotometric method

Publish Date: 1999-08-30

GB/T 6608-1999 Abolished

GB/T 6608-1999 Measuring thickness of the aluminium foil-Weighing method

Publish Date: 1999-07-23

GB/T 17687-1999 Abolished

GB/T 17687-1999 Polypropylene staple fiber used by melting method

Publish Date: 1999-03-04

GB/T 17653-1999 Abolished

GB/T 17653-1999 Road vehicles—Spin-on fuel filters for compression-ignition engines—Mounting and connecting dimensions

Publish Date: 1999-01-08