This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation and storage of zinc-aluminum alloy shaft sleeves (hereinafter referred to as "shaft sleeves") for construction machinery. This standard applies to zinc-aluminum alloy bushings used in bulldozers, excavators, loaders, well drilling rigs, etc.
GB/T 12689.1 Methods for chemical analysis of zinc and zinc alloys—Part 1:Determination of aluminum content—Chromazurol Spolyethylene glycol octyl phenylether-cetylpyridine bromine spectrophotometry,Chromeazurol S spectrophotometric method and EDTA titrimetry
GB/T 12689.10 The methods for chemical analysis of zinc and zinc alloys-The determination of tin content-The phenylfluorone-cetyltrimethyla-mmonium bromide spectrophotometric method
GB/T 12689.11 The methods for chemical analysis of zinc and zinc alloys-The determination of lanthanum and cerium contents-The tri-bromide arsenazo spectrophotometric method
GB/T 12689.12 The methods for chemical analysis of zinc and zinc alloys-The determination of lead,cadmium,iron,copper,tin,aluminium,arsenic,stibium,magnesium lanthanum and cerium contents-The inductively coupled plasma-optical emission spectrometric method
GB/T 12689.13 Zinc and zinc alloys--Determination of aluminium content--Electrothermal atomic absorption spectrometric method
GB/T 12689.14 Zinc and zinc alloys--Determination of aluminium content--Chromazurol S spectrophotometric method
GB/T 12689.2 The methods for chemical analysis of zinc and zinc alloys-The determination of arsenic content-The atomic fluorescence spectrometer method
GB/T 12689.3 The methods for chemical analysis of zinc and zinc alloys-The determination of cadmium content-The flame atomic absorption spectrometric method
GB/T 12689.4 The methods for chemical analysis of zinc and zinc alloys-The determination of copper content-The lead diethyldithio-carbamate spectrophotometric method and the flame atomic absorption spectrometric method and the electrolytic method
GB/T 12689.5 The methods for chemical analysis of zinc and zinc alloys-The determination of iron content-The sultosalicylic acid spectrometric method and the flame atomic absorption spectrometric method
GB/T 12689.6 The methods for chemical analysis of zinc and zinc alloys-The determination of lead content-The oscillopolarographic method
GB/T 12689.7 Methods for chemical analysis of zinc and zinc alloys—Part 7:Determination of magnesium content—Flame atomic absorption spectrometric method
GB/T 12689.8 The methods for chemical analysis of zinc and zinc alloys-The determination of silicon content-The molybdenum blue spectrophotometric method
GB/T 12689.9 The methods for chemical analysis of zinc and zinc alloys-The determination of antimony content-The atomic fluorescence spectrometer and the flame atomic absorption spectrometric method