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Ys T 5756 2007 Translated English Of Chinese Standard Yst 5756 2007 Ys T5756 2007 Yst5756 2007
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Book Synopsis JB/T 1009-2007 Translated English of Chinese Standard (JB/T 1009-2007, JBT1009-2007) by : https://www.chinesestandard.net
Download or read book JB/T 1009-2007 Translated English of Chinese Standard (JB/T 1009-2007, JBT1009-2007) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-01-13 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies YS series three-phase asynchronous motor in terms of type, basic parameters and dimension, requirements, test methods, inspection rules and requirements for marking and packaging. This Standard is applicable to YS series three-phase asynchronous motor (frame size 45-90) (hereinafter referred to as motor), and all other series motors derived from YS series three-phase asynchronous motor may also refer to this Standard.
Book Synopsis YB/T 4159-2007 Translated English of Chinese Standard. (YBT 4159-2007, YB/T4159-2007, YBT4159-2007) by : https://www.chinesestandard.net
Download or read book YB/T 4159-2007 Translated English of Chinese Standard. (YBT 4159-2007, YB/T4159-2007, YBT4159-2007) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2019-03-16 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard specifies the classification and code, the information required for ordering, size, shape, weight and tolerance, technical requirements, test methods, inspection rules, packaging, marking, quality certificate of hot-rolled steel checker plate and strip. This standard applies to diamond-shaped, lentil-shaped, round-bean-shaped and combined-shaped hot-rolled steel checker plate and strip.
Book Synopsis JB/T 6758.1-2007 Translated English of Chinese Standard. (JBT 6758.1-2007, JB/T6758.1-2007, JBT6758.1-2007) by : https://www.chinesestandard.net
Download or read book JB/T 6758.1-2007 Translated English of Chinese Standard. (JBT 6758.1-2007, JB/T6758.1-2007, JBT6758.1-2007) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2017-04-02 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: This part of JB/T 6758 specifies the type, product variety structure, technical requirements, acceptance rules and packaging marking of the continuously transposed conductors. This part shall be used in conjunction with the subsequent product standard parts of JB/T 6758.
Book Synopsis YS/T 252.4-2007 Translated English of Chinese Standard (YS/T 252.4-2007, YST252.4-2007) by : https://www.chinesestandard.net
Download or read book YS/T 252.4-2007 Translated English of Chinese Standard (YS/T 252.4-2007, YST252.4-2007) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-06-04 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard specifies the method for determination of copper content in high nickel matte. This standard is applicable to the determination of copper content in high nickel matte. Measuring range: 6% ~ 55%. 2 Method summary The sample is decomposed with hydrochloric acid and nitric acid-potassium chlorate saturated solution. The ammonium bifluoride is used to mask the iron and the solution is controlled at pH3.5 ~ pH4. Potassium iodide is added, to cause the copper to precipitate copper iodide and precipitate an equal amount of iodine. Use the starch solution as an indicator; use sodium thiosulfate standard titration solution to indirectly determine the amount of copper. 3 Reagents 3.1 Ammonium bifluoride. 3.2 Potassium iodide. 3.3 Ammonia water (¦Ñ0.90 g/mL). 3.4 Hydrochloric acid (¦Ñ1.19 g/mL). 3.5 Nitric acid (¦Ñ1.42 g/mL). 3.6 Nitric acid (1 + 1). 3.7 Sulfuric acid (1 + 1). 3.8 Urea saturated solution. 3.9 Potassium sulfate solution (100 g/L). YS/T 252.4-2007 www.ChineseStandard.net ? Buy True-PDF ? Auto-delivery. Page 6 of 9 3.10 Nitric acid-potassium chlorate saturated solution: Dissolve potassium chlorate in nitric acid (3.5) until saturated. 3.11 Starch solution (5 g/L). 3.12 Copper standard solution: Accurately weigh 1.0000 g of metallic copper (mass fraction of copper ¡Ý 99.95%). Place it in a 400 mL beaker. Add 20 mL of nitric acid (3.6). Dissolve at low temperature and evaporate to a viscous state. Cool it. Add 5 mL of sulfuric acid (3.7). Heat until a lot of white smoke comes out. Cool it slightly. Add water to boil to dissolve the salts. Cool to room temperature. Pipette it into a 1000 mL volumetric flask. Use water to make the volume reach to the mark. 1 mL of this solution contains 1.0 mg of co
Book Synopsis YS/T 252.5-2007 Translated English of Chinese Standard (YS/T 252.5-2007, YST252.5-2007) by : https://www.chinesestandard.net
Download or read book YS/T 252.5-2007 Translated English of Chinese Standard (YS/T 252.5-2007, YST252.5-2007) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-06-05 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the method for determination of sulfur content in high nickel matte. This Part is applicable to the determination of sulfur content in high nickel matte. Measuring range: 15% ~ 25%. 2 Method summary The sample uses copper wire as flux and burns in air flow at 1250 ¡ãC ~ 1300 ¡ãC, to convert sulfur into sulfur dioxide. It is absorbed and oxidized into sulfuric acid by hydrogen peroxide. Methyl red-methylene blue solution is used as a mixed indicator. Use sodium hydroxide standard titration solution to make titration, until the solution changes from purple to bright green, which is taken as the end point. 3 Reagents 3.1 Copper wire (mass fraction of copper ¡Ý 99.95%, diameter 0.25 mm ~ 0.5 mm). 3.2 Acid absorption solution (potassium dichromate-sulfuric acid solution): Heat and dissolve 5 g of potassium dichromate with a small amount of water. After cooling, add 100 mL of sulfuric acid. 3.3 Desiccant: Anhydrous calcium chloride. 3.4 Alkali absorption solution: Sodium hydroxide (50 g/L). 3.5 Phenolphthalein indicator (10 g/L), ethanol solution. 3.6 Methyl red-methylene blue mixed indicator: Weigh 0.3 g of methyl red and 0.25 g of methylene blue. Dissolve in 500 mL of absolute ethanol. 3.7 Hydrogen peroxide absorption solution (pre
Book Synopsis YS/T 252.3-2007 Translated English of Chinese Standard (YS/T 252.3-2007, YST252.3-2007) by : https://www.chinesestandard.net
Download or read book YS/T 252.3-2007 Translated English of Chinese Standard (YS/T 252.3-2007, YST252.3-2007) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-06-04 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the method for determination of cobalt content in high nickel matte. This Part is applicable to the determination of cobalt content in high-nickel matte. Measuring range: 0.1% ~ 2%. 2 Method summary Decompose the sample with hydrochloric acid, nitric acid-potassium chlorate saturated solution. Use air-acetylene flame in hydrochloric acid (2 + 98) medium, to measure the absorbance at the wavelength of 240.7 nm of atomic absorption spectrometer, after subtracting the background. Calculate the cobalt content according to the standard curve method. 3 Reagents 3.1 Hydrochloric acid (¦Ñ1.19 g/mL). 3.2 Nitric acid (¦Ñ1.42 g/mL). 3.3 Nitric acid (1 + 1). 3.4 Ammonia (1 + 3). 3.5 Nitric acid-potassium chlorate saturated solution: Dissolve potassium chlorate in nitric acid (3.2) until saturated. 3.6 Cobalt standard storage solution: Weigh 1.0000 g of metallic cobalt (mass fraction of cobalt ¡Ý 99.95%). Slowly add 20 mL of nitric acid (3.3) into a 400 mL beaker. Cover with a watch glass. Heat at low temperature to completely dissolve. Remove it. Use water to rinse the watch glass and cup wall. Heat and boil to remove nitrogen oxides. Remove it. Cool to room temperature. Transfer it into a 1000 mL volumetric flask. Use water to wash the watch glass and cup wall. Combine the washing liquid into the volumetric flask. Use water to make the volume reach to the mark. 1 mL of this solution YS/T 252.3-2007 www.ChineseStandard.net ? Buy True-PDF ? Auto-delivery. Page 6 of 8 contains 1 mg of cobalt. 3.7 Cobalt standard solution: Pipette 20.00 mL of cobalt stand
Book Synopsis YS/T 252.2-2007 Translated English of Chinese Standard (YS/T 252.2-2007, YST252.2-2007) by : https://www.chinesestandard.net
Download or read book YS/T 252.2-2007 Translated English of Chinese Standard (YS/T 252.2-2007, YST252.2-2007) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-06-03 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the method for determination of iron content in high nickel matte. This Part is applicable to the determination of iron content in high nickel matte. Measuring range: 0.5% ~ 7%. 2 Method summary The sample is decomposed with hydrochloric acid, nitric acid-potassium chlorate saturated solution. In the hydrochloric acid medium of pH1.5 ~ pH3.0, iron (III) and sulfosalicylic acid form a reddish-brown complex, whose absorbance is measured at the wavelength of 545 nm with a spectrophotometer. Calculate the iron content according to the standard curve method. 3 Reagents 3.1 Hydrochloric acid (¦Ñ1.19 g/mL). 3.2 Hydrochloric acid (1 + 3). 3.3 Nitric acid (¦Ñ1.42 g/mL). 3.4 Ammonia (1 + 3). 3.5 Nitric acid-potassium chlorate saturated solution: Dissolve potassium chlorate in nitric acid (3.3) until saturated. 3.6 Sulfosalicylic acid solution (100 g/L): Weigh 10 g of sulfosalicylic acid. Dissolve it in water and dilute it to 100 mL. Adjust it to about pH2 with ammonia water (3.4). 3.7 Iron standard solution: Weigh 0.1500 g of metallic iron (mass fraction of iron ¡Ý 99.9%). Place it in a 250 mL beaker. Add 20 mL of nitric acid (1 + 1). Heat to completely dissolve. Boil to drive out nitrogen oxides. Remove it. Cool to room temperature. Transfer to a 1000 mL volumetric flask. Use water to make the volume reach to the mark. 1 mL of this solution contains 0.15 mg of iron. YS/T 252.2-2007 www.ChineseStandard.net ? Buy True-PDF ? Auto-delivery. Page 6 of 8 4 Instruments Spectrophotometer. 5 Analytical procedures 5.1 Sample Weigh 0.400 g of sample, accurate to 0.0001
Book Synopsis YS/T 252.1-2007 Translated English of Chinese Standard (YS/T 252.1-2007, YST252.1-2007) by : https://www.chinesestandard.net
Download or read book YS/T 252.1-2007 Translated English of Chinese Standard (YS/T 252.1-2007, YST252.1-2007) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2024-06-03 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Part specifies the method for determination of nickel content in high nickel matte. This Part is applicable to the determination of nickel content in high-nickel matte. Measuring range: 20% ~ 80%. 2 Method summary The sample is decomposed with hydrochloric acid or nitric acid-potassium chlorate saturated solution. In the ammonia medium, nickel and diacetyl oxime form a red nickel diacetyl oxime precipitate, which is separated from other impurity elements. The precipitate is filtered, washed, and dried to constant weight; the amount of nickel is calculated. The amount of nickel in the mixed filtrate is extracted with chloroform under pH6.5, separated from other impurities, measured using diacetyl oxime spectrophotometry and then corrected. 3 Reagents 3.1 Hydrochloric acid (¦Ñ1.19 g/mL). 3.2 Hydrochloric acid (1 + 1). 3.3 Hydrochloric acid (1 + 24). 3.4 Nitric acid (¦Ñ1.42 g/mL). 3.5 Nitric acid (1 + 1). 3.6 Sulfuric acid (¦Ñ1.83 g/mL). 3.7 Ammonia (1 + 1). 3.8 Chloroform. 3.9 Nitric acid-potassium chlorate saturated solution: Dissolve potassium chlorate in YS/T 252.1-2007 www.ChineseStandard.net ? Buy True-PDF ? Auto-delivery. Page 6 of 10 nitric acid (3.4) until saturated. 3.10 Potassium sodium tartrate solution (200 g/L), filter it before use. 3.11 Ammonium acetate solution (200 g/L), filter it before use. 3.12 Sodium thiosulfate solution (200 g/L), filter it before use. 3.13 Dimethylglyoxime ethanol solution (10 g/L), filter it before use. 3.14 Dimethylglyoxime-sodium hydroxide solution (10 g/L): Dissolve 15 g of sodium hydroxide in 100 mL of water. After cooling to room temperature, dissolve 1 g of dimethylglyoxime in the solution. Mix well. 3.15 Ferric persulfate solution (50 g/L). 3.16 Nickel standard stock solution: Weigh 0.1000
Book Synopsis YB/T 5063-2007 Translated English of Chinese Standard. (YBT 5063-2007, YB/T5063-2007, YBT5063-2007) by : https://www.chinesestandard.net
Download or read book YB/T 5063-2007 Translated English of Chinese Standard. (YBT 5063-2007, YB/T5063-2007, YBT5063-2007) 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 classification and code, dimension, shape, technical requirements, test methods, inspection rules, package, marking and quality certificate, etc. of the heat treatment spring steel strips. This Standard is applicable to the heat treatment spring steel strips with thickness no greater than 1.50mm, width no greater than 100mm for manufacturing the spring parts.
Book Synopsis TB/T 2843-2007 Translated English of Chinese Standard. (TBT 2843-2007, TB/T2843-2007, TBT2843-2007) by : https://www.chinesestandard.net
Download or read book TB/T 2843-2007 Translated English of Chinese Standard. (TBT 2843-2007, TB/T2843-2007, TBT2843-2007) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2015-10-05 with total page 39 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies classification, basic performances, requirements, test methods, inspection rules, marking, packaging, storage and transportation of elastic rubber parts for railways. This Standard applies to elastic rubber parts for shock absorption, buffer, flexible connection, limiting, etc. in hanging system, equipment installation system, connection, limiting positions, etc. of railways.
Book Synopsis YS; YS/T; YST - Product Catalog. Translated English of Chinese Standard. (YS; YS/T; YST) by : https://www.chinesestandard.net
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 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document provides the comprehensive list of Chinese Industry Standards - Category: YS; YS/T; YST.
Book Synopsis QB/T 2903-2007 Translated English of Chinese Standard. (QBT 2903-2007, QB/T2903-2007, QBT2903-2007) by : https://www.chinesestandard.net
Download or read book QB/T 2903-2007 Translated English of Chinese Standard. (QBT 2903-2007, QB/T2903-2007, QBT2903-2007) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2014-06-13 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the jar candle.
Book Synopsis JB/T 5000.9-2007 Translated English of Chinese Standard (JB/T 5000.9-2007, JBT5000.9-2007) by : https://www.chinesestandard.net
Download or read book JB/T 5000.9-2007 Translated English of Chinese Standard (JB/T 5000.9-2007, JBT5000.9-2007) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2023-02-21 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: This part of JB/T 5000 specifies general requirements of cutting and tolerance without indication; and specific requirements on key groove, hole diameter and hole distance, center hole, tolerance without indication and allowed shape of cutter, etc. This part is applicable to cutting of heavy machinery product parts. All the product drawings and technical documents, if without special requirements, shall meet the requirements of this part.
Book Synopsis JB/T 5000.14-2007 Translated English of Chinese Standard. (JBT 5000.14-2007, JB/T5000.14-2007, JBT5000.14-2007) by : https://www.chinesestandard.net
Download or read book JB/T 5000.14-2007 Translated English of Chinese Standard. (JBT 5000.14-2007, JB/T5000.14-2007, JBT5000.14-2007) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2015-06-11 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: JB/T 5000 specifies the ultrasonic inspection, ray inspection, magnetic particle inspection and penetrate inspection with its relative quality grade.
Book Synopsis YY/T 1099-2007 Translated English of Chinese Standard. (YYT 1099-2007, YY/T1099-2007, YYT1099-2007) by : https://www.chinesestandard.net
Download or read book YY/T 1099-2007 Translated English of Chinese Standard. (YYT 1099-2007, YY/T1099-2007, YYT1099-2007) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2019-03-05 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the requirements, test methods, inspection rules for packaging, transportation and storage of medical X-ray equipment, accessories and appliance. This Standard is applicable to the packaging, transportation and storage of medical X-ray equipment, accessories and appliance.
Book Synopsis GB/T 2934-2007 Translated English of Chinese Standard. (GBT 2934-2007, GB/T2934-2007, GBT2934-2007) by : https://www.chinesestandard.net
Download or read book GB/T 2934-2007 Translated English of Chinese Standard. (GBT 2934-2007, GB/T2934-2007, GBT2934-2007) written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2019-08-03 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Standard specifies the plan sizes and tolerances, and other principal dimensions and tolerances of the general-purpose flat pallets for through transit of goods. This Standard applies to the general-purpose flat pallets for through transit of goods in highways, railways, and waterways.
