Download or read book YS T 1028 5 2015 Translated English of Chinese Standard YS T 1028 5 2015 YST1028 5 2015 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2023-12-10 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This part of YS/T 1028 specifies the determination method of the content of calcium, magnesium, zinc, copper, lead, chromium, sodium, aluminium, nickel, cobalt and manganese in lithium iron phosphate. This part applies to the determination of the content of calcium, magnesium, zinc, copper, lead, chromium, sodium, aluminium, nickel, cobalt and manganese in lithium iron phosphate. The measurement range is shown in Table 1. Table 1 -- Measuring range of each element 2 Method summary The sample is dissolved with hydrochloric acid, the carbon in it is filtered out, and the element to be measured is measured by using an inductively coupled plasma atomic emission spectrometer. 3 Reagents 3.1 Hydrochloric acid (guaranteed reagent, ¦Ñ¡Ö1.19 g/mL). Element Element Measuring range w / % Measuring range w / % YS/T 1028.5-2015 www.ChineseStandard.net ? Buy True-PDF ? Auto-delivery Page 5 of 9 3.2 Hydrochloric acid (1+1). 3.3 Hydrochloric acid (1+19). 3.4 Calcium, magnesium, zinc, copper, lead, chromium, sodium, aluminium, nickel, cobalt, manganese standard stock solutions (1000 ¦Ìg/mL). 3.5 Mix standard solutions: Respectively pipette 5 mL of calcium, magnesium, zinc, copper, lead, chromium, sodium, aluminium, nickel, cobalt, and manganese standard stock solutions (3.4) into a 100 mL volumetric flask, dilute with hydrochloric acid (3.3) to the mark, and mix well. 1 mL of this solution contains 50 ¦Ìg of calcium, magnesium, zinc, copper, lead, chromium, sodium, aluminium, nickel, cobalt, and manganese. 4 Instruments Inductively coupled plasma atomic emission spectrometer. Under the best working conditions of the instrument, any instrument that can achieve the following indexes can be used: -- Ligh

Download or read book YS T 1028 4 2015 Translated English of Chinese Standard YS T 1028 4 2015 YST1028 4 2015 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2023-12-10 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: This part of YS/T 1028 specifies the method for determining the carbon content in lithium iron phosphate. This part applies to the determination of carbon content in lithium iron phosphate. Measuring range: 0.5%~5.0%. 2 Method summary The sample and flux are put into a porcelain crucible and heated with a high-frequency induction furnace in the oxygen flow. The carbon is burned to generate carbon dioxide, which is carried by the oxygen to the infrared absorption cell. The change of carbon dioxide concentration on infrared absorption energy follows Beer's law. The analysis results of carbon content are directly displayed on the display as a percentage. 3 Reagents and materials 3.1 Oxygen: The purity is not less than 99.5%. 3.2 Desiccant: Anhydrous magnesium perchlorate with a particle size of 0.7 mm~1.2 mm. 3.3 Purifying agent: Soda asbestos with a particle size of 0.7 mm~1.2 mm. 3.4 Pure iron: The purity is greater than 99.8%, and the carbon content is less than 0.002%. 3.5 Tungsten particles: The carbon content is less than 0.002%. 3.6 Porcelain crucible: Before use, the porcelain crucible shall be placed in a muffle furnace and burned at 1200 ¡ãC for no less than 2 hours. After it is taken out and cooled slightly, it is stored in a desiccator. YS/T 1028.4-2015 www.ChineseStandard.net ? Buy True-PDF ? Auto-delivery Page 5 of 7 4 Instruments The operating parameters of the instruments shall meet the following requirements: -- High-frequency induction furnace: It shall meet the requirements of the sample melting temperature. -- Electronic balance: The sensitivity shall be 0.1 mg. 5 Samples 5.1 Before use, the sample shall be dried in an oven at 110 ¡ãC¡À5 ¡ãC for 1 hour, then taken out and stored in a desiccator. 5.2 The particle size of the sample shall not be larger than 0.10 mm. 6 Analysis steps WARNING -- The hazards associated with combustion analysis are primarily pre-fired porcelain crucibles and combustion during the melting process. Always use crucible tong...

Download or read book YS T 1028 1 2015 Translated English of Chinese Standard YS T 1028 1 2015 YST1028 1 2015 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2023-08-14 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part of YS/T 1028 specifies the method for the determination of total iron in lithium iron phosphate. This section applies to the determination of total iron in lithium iron phosphate. The measuring range is: 28% ~ 36%. 2 Summary of method After the sample is dissolved in hydrochloric acid, sodium tungstate is used as an indicator; a small amount of ferric iron is reduced to ferrous iron with titanium trichloride, to form "tungsten blue"; the excess trivalent titanium is naturally oxidized by the oxygen in the air. In the sulfuric acid-phosphoric acid medium, sodium diphenylamine sulfonate is used as an indicator, to titrate the divalent iron by the use of potassium dichromate standard solution. 3 Reagents and materials 3.1 Hydrochloric acid (1 + 1). 3.2 Sulfuric acid-phosphoric acid mixed solution: Slowly add 15 mL of sulfuric acid (¦Ñ¡Ö 1.84 g/mL) to 70 mL of water. After cooling, add 15 mL of phosphoric acid (¦Ñ¡Ö1.69 g/mL). Mix well. 3.3 Titanium trichloride solution (1 + 14): Take 2 mL of titanium trichloride solution (about 15% titanium trichloride solution). Use hydrochloric acid (1 + 5), to dilute it to 30 mL. 3.4 Potassium dichromate standard titration solution [c( ) = 0.0500 mol/L]: Weigh 2.4516 g of standard potassium dichromate (after predried at 140 ¡ãC ~ 150 ¡ãC for 2 h, place it in a desiccator and cool to room temperature). After dissolving in wat

Download or read book YS T 298 2015 Translated English of Chinese Standard YST 298 2015 YS T298 2015 YST298 2015 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2019-03-16 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the requirements, test methods, inspection rules, marking, package, transportation, storage, quality certificate, ordering list (or contract) contents of the high titanium slag. This Standard is applicable to the high titanium slag used by titanium tetrachloride, artificial rutile and titanium pigment with titanic iron ore as raw materials, and producing by electric furnace smelting.

Download or read book YS T 231 2015 Translated English of Chinese Standard YST 231 2015 YS T231 2015 YST231 2015 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2016-06-03 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the requirements, test methods, inspection rules, marks, package, transportation, storage, quality certificate and orders (or contracts) for the tungsten concentrate. This Standard applies to tungsten concentrate products selected in mine; it can be used for producing ammonium paratungstate, tungstic acid, ammonium metatungstate, tungsten oxide etc.

Download or read book YS T 656 2015 Translated English of Chinese Standard YST 656 2015 YS T656 2015 YST656 2015 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2018-05-05 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the designation, chemical composition etc. of niobium and niobium alloy. This Standard applies to all types of wrought niobium and niobium alloy products (including cast ingots and semi-finished products).

Download or read book YS T 1085 2015 Translated English of Chinese Standard YS T 1085 2015 YST1085 2015 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-06-02 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard specifies the method for the determination of silicon, manganese, phosphorus, iron, copper, cobalt, magnesium, aluminum, zinc and chromium content in refined nickel by using an inductively coupled plasma atomic emission spectrometric method. This method is applicable to the analysis of silicon, manganese, phosphorus, iron, copper, cobalt, magnesium, aluminum, zinc and chromium content in refined nickel. The measuring range of each element is shown in Table 1. Table 1 -- Measuring range of each element Element Measuring range (mass fraction)/% YS/T 1085-2015 www.ChineseStandard.net ? Buy True-PDF ? Auto-delivery Page 5 of 16 2 Method principle A certain amount of the sample is weighed and decomposed by the nitric acid; an inductively coupled plasma atomic emission spectrometer is used to measure the spectral intensity of the spectral line of the element to be measured in the solution; the spectral line is corrected by subtracting the background to eliminate the influence of the matrix nickel; the elemental content is obtained from the calibration curve drawn according to the standard solution. 3 Reagents Unless otherwise stated, the reagents used in this standard are all of analytical grade, and the water used is first-grade water. 3.1 Nitric acid (¦Ñ=1.42 g/mL). 3.2 Nitric acid (1+1). 3.3 Hydrofluoric acid (¦Ñ=1.15 g/mL). 3.4 Silicon standard stock solution: Heat high-purity silica (the content is greater than 99.9%) at a temperature of 1100 ¡ãC until its mass is constant, and cool to room temperature in a desiccator; weigh 2.1393 g and put it into a platinum crucible, add about 5 g of sodium carbonate, heat and melt for 15 minutes. Take it out and cool it slightly, place it in a 500 mL beaker, dissolve the melt with water, and wash out the platinum crucible; then, transfer the solution into a 1000 mL volumetric flask, wash the beaker with water and pour the washing liquid into the volumetric flask, add water to the scale of the volumetric flask, mix...

Download or read book YS T 357 2015 Translated English of Chinese Standard YS T 357 2015 YST357 2015 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2023-10-16 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard specifies the requirements, test methods, inspection rules and marking, packaging, transportation, storage, quality certificate and order form (or contract) content of O-Isopropyl-N-ethyl thionocarbamate. This standard applies to O-Isopropyl-N-ethyl thionocarbamate flotation reagents, which are synthesized from isopropyl xanthate, monochloroacetic acid, sodium carbonate, monoethylamine as raw materials.

Download or read book GB T 8890 2015 Translated English of Chinese Standard GBT 8890 2015 GB T8890 2015 GBT8890 2015 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2017-04-02 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the requirements, test methods, inspection rules, marking, package, transportation, storage, order sheet (or contract), and the like contents of seamless copper alloy tube for condenser and heat-exchanger. This Standard is applicable to the seamless copper alloy tubes used by thermal power generation, ship, offshore oil, machinery, chemical and other industrial sectors to manufacture heat-exchanger and condenser.

Download or read book TB T 3396 1 2015 Translated English of Chinese Standard TB T 3396 1 2015 TBT3396 1 2015 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2023-09-26 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the indoor test method for the longitudinal resistance of rails assembled with fasteners. This Part applies to fastening systems for high-speed railways. 2 Sign The following signs are applicable to this Document. D1: The maximum longitudinal displacement of the rail during the loading cycle, in millimeters (mm). D2: The residual longitudinal displacement of the rail after unloading, in millimeters (mm). D3: Elastic longitudinal displacement of the rail before sliding, in millimeters (mm). F: The longitudinal resistance of the rail, in kilonewtons (kN). 3 Principle Assemble the short rail with fasteners on the rail bearing surface of the anchored sleeper; and apply longitudinal tension to the rail; record the load and the longitudinal displacement of the rail relative to the sleeper; and unload when the rail slips. The longitudinal resistance of the rail is obtained from the load-displacement curve. 4 Test Equipment 4.1 Rails A section of short rail with a length of about 0.5 m, whose section is the same as that used for the assembly of the fastener to be tested or the assembly fatigue performance test. The rails shall be free from peeling, free from floating rust on the surface; and the bottom of the rails TB/T 3396.1-2015 www.ChineseStandard.net ? Buy True-PDF ? Auto-delivery. Page 5 of 9 shall not be polished due to repeated tests. 4.2 Loading device The device with the loading rate of 9kN/min ~ 11kN/min, and the static loading can reach 50kN, which applies the tension in the direction of the vertical sleeper through the bottom of the rail. 4.3 Displacement sensor An instrument for measuring the longitudinal displacement of the rail relative to the sleeper, with an indication error of 0.01 mm. 4.4 Load sensor An instrument for measuring the load applied to the rail, with an accuracy class of 0.5 4.5 Recording equipment For equipment capable of digitally recording and drawing load-displacement curves during the test, the sampling frequency shal...

Download or read book TB T 3396 3 2015 Translated English of Chinese Standard TB T 3396 3 2015 TBT3396 3 2015 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2022-11-09 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the indoor test method for the static stiffness of fastening assemblies. This Part applies to high-speed railway fastener systems. 2 Symbols The following symbols apply to this document. F1: The minimum load applied to the tested fastener system, in kilonewtons (kN); F2: The maximum load applied to the tested fastener system, in kilonewtons (kN); D1: The displacement of the rail when loaded to F1, in millimeters (mm); D2: The displacement of the rail when loaded to F2, in millimeters (mm); KSTA: Assembly static stiffness, in kilonewtons per millimeter (kN/mm). 3 Principles Apply a load, which is perpendicular to the bottom surface of the rail, to the rail (assembled on a single bearing surface) with the fastener system assembled by the testing machine, to determine the displacement of the rail, as relative to the sleeper, under the load. 4 Test equipment 4.1 Steel rail A segment of short steel rail, which has a length of about 0.5 m, the section of which is the same as the section of the steel rail used for the tested fastening assembly or assembly fatigue performance test. The steel rail shall be free of peeling and rust on the surface. TB/T 3396.3-2015 www.ChineseStandard.net  Buy True-PDF  Auto-delivery. Page 5 of 6 4.2 Loading device A device, which has a loading rate of 2 kN/s ~ 6 kN/s, a static loading reaching up to 110 kN, is used to apply vertical load to the rail surface. 4.3 Displacement sensor The instrument for measuring the vertical displacement of the rail, as relative to the sleeper, which has an indication error of 0.01 mm. 4.4 Load sensor An instrument for measuring the load, which is applied to the rail; it has an accuracy grade of 0.5. 4.5 Recording device A device, that can perform digital recording and draw a load-displacement curve, during the test. It has a sampling frequency of not less than 50 Hz. 5 Test pieces 5.1 Sleeper Sleepers, 1/2 sleepers or slab track units with embedded fasteners or reserved bolt holes (all d...

Download or read book TB T 3396 2 2015 Translated English of Chinese Standard TB T 3396 2 2015 TBT3396 2 2015 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2023-09-27 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the indoor test methods for clamping force of fastener. This Part is applicable to the fastening systems of high-speed railway. 2 Sign The following signs are applicable to this Document. d: the vertical displacement of the sleeper relative to the rail, in millimeters (mm); ms: the mass of the sleeper or part of the sleeper used for testing and the fastening components assembled thereon, in kilograms (kg); mf: the mass of the reinforcement frame supported by the sleeper, in kilograms (kg); P: vertical force acting on the rail or sleeper, in kilonewtons (kN); P0: Just offset the clamping force, the vertical force when the rail has zero displacement, in kilonewtons (kN); P1: The vertical force acting on the rail or sleeper when the average reading of the displacement sensor is zero, in kilonewtons (kN). 3 Principles The clamping force of the fastener is determined by measuring the force that disengages the rail from the rail bearing surface. 4 Test Equipment 4.1 Rail TB/T 3396.2-2015 www.ChineseStandard.net ? Buy True-PDF ? Auto-delivery. Page 5 of 9 A section of short rail with a length of about 0.5m, whose cross-section is the same as that used for the assembly of the fastener to be tested or for the fatigue performance test of the assembly. There shall be no peeling off the rails, and no floating rust on the surface. 4.2 Loading device The device with loading rate of 9kN/min ~ 11kN/min, static loading up to 50kN for applying vertical loads. For the reference test method, the load is applied to the rail; for the alternative test method, the load is applied to the reinforcement frame supported on the sleeper on the shelf. 4.3 Displacement sensor An instrument for measuring the vertical displacement of the rail relative to the sleeper, with an indication error of 0.01 mm. 4.4 Load cells An instrument for measuring the load applied to the rail or to the reinforcement frame supporting the sleeper, with an accuracy class of 0.5. 4.5 Recording device T...

Download or read book YS T 575 5 2007 Translated English of Chinese Standard YST 575 5 2007 YS T575 5 2007 YST575 5 2007 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2020-02-09 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the determination of ferric oxide content in the bauxite. This Part is applicable to the determination of ferric oxide content in the bauxite; the determination range: 5.00%.

Download or read book GB T 12769 2015 Translated English of Chinese Standard GBT 12769 2015 GB T12769 2015 GBT12769 2015 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2019-02-16 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard specifies the requirements, test methods, inspection rules, marking, packaging, transportation, storage, quality certificate and contract (or purchase order) of titanium-clad copper bar. This standard is applicable to titanium-clad copper bar (hereinafter referred to as composite bar) used in the manufacture of metal anode electrolyzer and other applications produced by hot-extrusion, hot-extrusion stretching, explosive composite, or explosive composite hot-rolling.

Download or read book GB T 6478 2015 Translated English of Chinese Standard GBT 6478 2015 GB T6478 2015 GBT6478 2015 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2017-04-29 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the classification, grade, ordering contents, dimension, appearance, weight and allowable deviation, technical requirements, test methods, inspection rules, package, mark, and quality certificate, etc. for the non-alloyed steels and alloyed structural steels for cold heading and cold extruding.

Download or read book YS YS T YST Product Catalog Translated English of Chinese Standard YS YS T YST written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2018-01-01 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document provides the comprehensive list of Chinese Industry Standards - Category: YS; YS/T; YST.

Download or read book GB T 8651 2015 Translated English of Chinese Standard GBT 8651 2015 GB T8651 2015 GBT8651 2015 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2018-10-19 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the terms, definitions, general requirements, flaw detection equipment, contrast sample, selection of plate wave mode, flaw detection method and flaw assessment of flaw detection method by the ultrasonic plate wave for metal plates. This Standard is applicable to flaw detection by the ultrasonic plate wave for metal plates whose thickness is not more than 5 times of the surface wavelength of detected plates. However, it must be confirmed that the stimulated sound wave is plate wave, and flaw detection can be conducted under sufficient sensitivity of flaw detection.