GB/T 43755-2024 Preformed solders

GB/T 3131-2001 Tin-lead solder GB/T 3131-2020 Tin-lead solder GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 14265-1993 General rule of chemical analysis for hydrogen, oxygen, nitrogen, carbon and sulfur in metal's materials GB/T 14265-2017 General rule of chemical analysis for hydrogen,oxygen, nitrogen, carbon and sulfur in metallic materials GB/T 15829-2008 Soft soldering flux—Classification and requirements GB/T 15829-2021 Soft soldering flux—Classification and requirements GB/T 15829.1-1995 Soldering fluxes—Classification, labelling and packaging GB/T 15829.2-1995 Soldering fluxes—Resin basis fluxes GB/T 15829.3-1995 Soldering fluxes—Organic fluxes GB/T 15829.4-1995 Soldering fluxes—Inorganic fluxes GB/T 20422-2006 Lead-free solders GB/T 20422-2018 Lead-free solders GB/T 33148-2016 Soldering and brazing terms GB/T 38265.1-2019 Test methods for soft soldering fluxes—Part 1:Determination of non-volatile matter—Gravimetric method GB/T 38265.2-2019 Test methods for soft soldering fluxes—Part 2:Determination of non-volatile matter—Ebulliometric method GB/T 38265.3-2022 Test methods for soft soldering fluxes—Part 3:Determination of acid value—Potentiometric and visual titration methods GB/T 38265.5-2021 Test methods for soft soldering fluxes—Part 5:Copper mirror test GB/T 38265.6-2022 Test methods for soft soldering fluxes—Part 6: Determination of halide(excluding fluoride) content GB/T 38265.8-2022 Test methods for soft soldering fluxes—Part 8:Determination of zinc content GB/T 38265.9-2022 Test methods for soft soldering fluxes—Part 9:Determination of ammonia content GB/T 38265.10-2019 Test methods for soft soldering fluxes—Part 10:Flux efficacy test—Solder spread method GB/T 38265.11-2021 Test methods for soft soldering fluxes—Part 11:Solubility of flux residues GB/T 38265.13-2021 Test methods for soft soldering fluxes—Part 13:Determination of flux spattering GB/T 38265.14-2021 Test methods for soft soldering fluxes—Part 14:Assessment of tackiness of flux residues GB/T 38265.15-2021 Test methods for soft soldering fluxes—Part 15: Copper corrosion test GB/T 38265.16-2019 Test methods for soft soldering fluxes—Part 16:Flux efficacy test—Wetting balance method GB/T 38265.17-2022 Test methods for soft soldering fluxes—Part 17:Surface insulation resistance comb test and electrochemical migration test of flux residues HG/T 2892-2020 HG/T 2892-2020 Chemical reagent isopropanol HG/T 2892-2010 chemistry reagents, isopropyl alcohol HG/T 2892-1997 HG/T 2892-1997 Chemical reagent Isopropyl alcohol