Number
Name
Status
- GB/T 39741.2-2021 《Plain bearings—Tolerances—Part 2：Tolerances on geometrical characteristics and surface roughness for shafts and thrust collars》 Active Products
- GB/T 40389-2021 《Sintered metal materials, excluding hardmetals—Measurement of surface roughness》 Active Products
- GB/T 2523-2022 《Measuring method of surface roughness, peak count and waviness for cold-rolled metal sheet and strip》 Active Products
- GB/T 16018-1995 《Workplace air--Determination of manganese and its compounds--Flame atomic absorption spectrophotometric method》 Abolish Products
- GB/T 16020-1995 《Workplace air--Determination of chromium trioxide--Flame atomic absorption spectrophotometric method》 Abolish Products
- GB/T 16021-1995 《Workplace air--Determination of nickel and its compounds--Flame atomic absorption spectrophotometric method》 Abolish Products
- GB/T 16022-1995 《Workplace air--Determination of cobalt and its compounds--Flame atomic absorption spectrophotometric method》 Abolish Products
- GB/T 1871.5-1995 《Phosphaterock and concentrate--Determination of magnesium oxide content--Flame atomic absorption spectrometric and volumetric methods》 Abolish Products
- GB/T 1879-1995 《Phosphate rock and concentrate--Determination of potassium oxide content--Flame atomic absorptionspectrometric method》 Active Products
- GB/T 19863-2005 《Testing of Stereomicroscopes》 Active Products
- GB/T 1881-1995 《Phosphate rock and concentrate--Determination of strontium oxide content--Flame atomic absorptionspectrometric method》 Active Products
- GB/T 18873-2008 《General guide of transmission electron microscope (TEM)- X-ray energy dispersive spectrometry(EDS) quantitative microanalysis for thin biological specimens》 Active Products
- GB/T 13551-1995 《Phosphate rock and concentrate--Determination of cadmium oxide content--Flame atomic absorption spectrometric method》 Active Products
- GB/T 17507-2008 《General specification of thin biological standards for X-ray EDS microanalysis in transmission electron microscope》 Active Products
- GB/T 15555.1-1995 《Solid waste--Determination of total mercury--Cold atomic absorption spectrometry》 Active Products
- GB/T 9247-2008 《Microscopes - Condensers》 Active Products
- GB/T 15555.2-1995 《Solid waste--Determination of copper， zinc， lead， cadmium--Atomic absorption spectrometry》 Abolish Products
- GB/T 9246-2008 《Microscopes - Oculars(eyepieces)》 Active Products
- GB/T 22064-2008 《Microscopes - Interfacing connection for 35 mm SLR photo cameras》 Active Products
- GB/T 22063-2008 《Microscopes - Interfacing connection type C》 Abolish Products
- GB/T 22062-2008 《Microscopes - Graticules for oculars》 Abolish Products
- GB/T 22061-2008 《Microscopes - Reference system of polarized light microscopy》 Active Products
- GB/T 22060-2008 《Microscopes - Dimensions of tube slide and tube slot connections》 Active Products
- GB/T 22059-2008 《Microscopes - Magnifying power》 Abolish Products
- GB/T 22058-2008 《Microscopes - Marking of stereomicroscopes》 Active Products
- GB/T 2951.41-2008 《Common test methods for insulating and sheathing materials of electric and optical cables - Part 41:Methods specific to polyethylene and polypropylene compounds - Resistance to environmental stress cracking - Measurement of the melt flow index - Carbon black and/or mineral filler content measurement in polythylene by direct combustion - Measurement of carbon black content by thermo gravimetric analysis(TGA)- Assessment of carbon black dispersion in polyethylene using a microscope》 Active Products
- GB/T 22055.1-2008 《Microscopes - Screw threads for objectives and related nosepieces - Part 1: Screw thread type RMS (4/5in×1/36in)》 Abolish Products
- GB/T 22055.2-2008 《Microscopes - Screw threads for objectives and related nosepieces - Part 2: Screw thread type M25×0.75mm》 Abolish Products
- GB/T 22057.2-2008 《Microscopes - Imaging distances related to mechanical reference planes - Part 2: Infinity-corrected optical systems》 Abolish Products
- GB/T 22057.1-2008 《Microscopes - Imaging distances related to mechanical reference planes - Part 1: Tube length 160mm》 Abolish Products