GB/T 6161-1994 Micrographics—Test chart No.2—Description and use in microfilming

GB 6161-1985

GB/T 6161-2008 Micrographics—ISO resolution test chart No.2—Description and use

GB/T 6159.1-2003 Micrographics—Vocabulary—Part 1:General terms GB/T 6159.1-2014 Micrographics—Vocabulary—Part 1:General terms GB/T 6159.2-2011 Micrographics—Vocabulary—Part 2:Image positions and methods of recording GB/T 6160-2003 Micrographics First generation silver-gelatin microforms of source documents—Density specifications and method of measurement GB/T 6987.1-2001 Aluminium and aluminium alloys—Determination of copper content—Electrolytic grarmetric method GB/T 6987.2-2001 Aluminium and aluminium alloys—Determination of copper content—Oxalyldihydrazide spectrophotometric method GB/T 6987.3-2001 Aluminium and aluminium alloys—Determination of copper content—Falme atomic absorption spectrometric method GB/T 6987.4-2001 Aluminium and aluminium alloys—Determination of iron content—Orthopenanthroline photometric method GB/T 6987.5-2001 Aluminium and aluminium alloys—Determination of silicon content—Gravimetric method GB/T 6987.6-2001 Aluminium and aluminium alloys—Determination of silicon content—Molybdenum blue spectrophotometric method GB/T 6987.7-2001 Aluminium and aluminium alloys—Determination of manganese content—Potassium periodate spectrophotometric method GB/T 6987.8-2001 Aluminium and aluminium alloys—Determination of zine content—EDTA titrimetric method GB/T 6987.9-2001 Aluminium and aluminium alloys—Determination of zine content—Flame atomic absorption spectrometric method GB/T 6987.10-2001 Aluminium and aluminium alloys—Determination of tin content—Phenyl fluorone spectrophotometric method GB/T 6987.11-2001 Aluminium and aluminium alloys—Determination of lead content—Flame atomic absorption spectrometric method GB/T 6987.12-2001 Aluminium and aluminium alloys—Determination of titanium content—Diantipyrylmethane spectrophotometric method GB/T 6987.13-2001 Aluminium and aluminium alloys—Determination of vanadium content—N-benzoyl-Nphenylhydroxylamine spectrophotometric method GB/T 6987.14-2001 Aluminium and aluminium alloys—Determination of nickel content—Dimethylglyoxime spectrophotometric method GB/T 6987.15-2001 Aluminium and aluminium alloys—Determination of nikel content—Flame atomic absorption spectrometric method GB/T 6987.16-2001 Aluminium and aluminium alloys—Determination of magnesium content—CDTA titrimetric method GB/T 6987.17-2001 Aluminium and aluminium alloys—Determination of magnesium content—Flame atomic absorption spectrometric method GB/T 6987.18-2001 Aluminium and aluminium alloys—Determination of chromium content—Flame atomic absorption spectrometric method GB/T 6987.19-2001 Aluminium and aluminium alloys—Determination of zirconium content—Xylenol orange spectro photometric method GB/T 6987.20-2001 Aluminium and aluminium alloys—Determination of gallium content—Butyrhodamine B spectrophotometric method GB/T 6987.21-2001 Aluminum and aluminum alloys—Determination of calcium content—Flame atomic absorption spectrometric method GB/T 6987.22-2001 Aluminium and aluminium alloys—Determination of beryllium content—SCR spectrophotometric method GB/T 6987.23-2001 Aluminium and aluminium alloys—Determination of antimony content—Potassium iodide spectrophotometric method GB/T 6987.24-2001 Aluminium and aluminium alloys—Determination of the cerium subgroup of rare earth elements content—Tribromoarsenazo spectrophotometric method GB/T 6987.25-2001 Aluminum and aluminum alloys—Determination of cadmium content—Flame atomic absorption spectrometric method GB/T 6987.26-2001 Aluminium and aluminium alloys—Determination of lithium content—Flame atomic absorption spectrometric method GB/T 6987.27-2001 Aluminium and aluminium alloys—Determination of boron content—Ion selective electrode method GB/T 6987.28-2001 Aluminium and aluminium alloys—Determination of strontium content—Flame atomic absorption spectrometric method GB/T 6987.29-2001 Aluminium and aluminium alloys—Determination of copper content—2,9-Dimethyl-1,10-phenanthroline spectrophotometric method GB/T 6987.30-2001 Aluminium and aluminium alloys—Determination of chromium content—Diphenyicarbazide spectrophotometry method after extraction GB/T 6987.31-2001 Aluminium and aluminium alloys—Determination of titanium content—Hydrogen peroxide spectrophotometric method GB/T 6987.32-2001 Aluminium and aluminium alloys—Determination of total rare earth contents—Rare earth oxalate gravimetric method GB/T 12356-1990 Micrographics—Test object character and instruction for 16mm microfilm recorder GB/T 12356-2008 Micrographics—16 mm planetary cameras—Test target for checking performance GB/T 321-1980 Preferred numbers and preferred number series GB/T 321-2005 Preferred numbers—Series of preferred numbers

ISO 3334-1989