GB/T 15456-2019
工业循环冷却水中化学需氧量(COD)的测定 高锰酸盐指数法
Determination of the chemical oxygen demand in industrial circulating cooling water—Permanganate index method
- 实施日期
- 2020-07-01
- ICS 分类
- 71.040.40
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
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GB/T 15456-2019
Determination of the chemical oxygen demand in industrial circulating cooling water—Permanganate index method
GB/T 37837-2019
General rules for quadrupole inductively coupled plasma mass spectrometry
GB/T 37664.1-2019
Nanomanufacturing—Key control characteristics—Luminescent nanomaterials—Part 1:Quantum efficiency
GB/T 37560-2019
Flame retardant chemicals—Determination of melamine and cyanuric acid in melamine cyanurate
GB/T 6040-2019
General rules for infrared analysis
GB/T 37254-2018
High purity silicon carbide—Determination of trace elements
GB/T 37248-2018
High purity aluminium oxide—Determination of trace metal elements—Inductively coupled plasma optical emission spectrometry
GB/T 37225-2018
Nanotechnology—Characterization of multiwall carbon nanotube in aqueous solution—Extinction spectroscopy
GB/T 37186-2018
Gas analysis—Determination of sulfur dioxide and nitrogen oxides—Ultraviolet differential optical absorption spectroscopy
GB/T 37185-2018
Gas analysis—Determination of indoor harmful volatile organic compounds—"SUMMA canister and silonite tube" and chromatography/mass spectrometry(GC/MS)
GB/T 37182-2018
Gas analysis—Gas chromatograph with plasma emission detector
GB/T 37156-2018
Nanotechnologies—Materials specifications—Guidance on specifying nano-objects
GB/T 36937-2018
Environmental consciousness design for laboratory instruments and equipments
GB/T 14235.2-2018
Low temperature pattern wax materials for investment casting—Part 2: Testing methods for usability properties
GB/T 14235.1-2018
Low temperature pattern wax material for investment casting—Part 1: Testing methods for physical properties
GB/T 36791-2018
Determination of bromine in organic flame retardant—Oxygen bomb combustion-ion selective electrode method
GB/T 36533-2018
Determination of the chemical state of micro-iron in silicate—Auger electron spectroscopy
GB/T 36504-2018
Guide for the analysis of the printed circuit board surface contamination—Auger electron spectroscopy
GB/T 6909-2018
Analysis of water used in boiler and cooling system—Determination of hardness
GB/T 6908-2018
Analysis of water used in boiler and cooling system—Determination of electrical conductivity