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KS M ISO 6791-2017 Determination of quinoline. insoluble(QI) material of pitch
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2024-01-04 01:24:01浏览:5
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NB/SH/T 0986-2019 汽油、柴油和甲醇燃料中总氧含量的测定 还原裂解法 Standard test method for determination of total oxygen in gasoline,diesel and methanol fuels by reductive pyrolysis
本标准规定了采用还原裂解法测定汽油、柴油和甲醇燃料中总氧含量的方法。<br />本标准适用于测定氧质量分数范151为1.0%-5.0%的汽油,氧质量分数范围为1.0%~10%的柴油样品和氧质量分数范围为40%~50%的甲醇燃料样品。汽油中可包含以下一种或几种含氧化合物:异丁醇、正丁醇、仲丁醇、叔丁醇、二异丙醚、乙醇、乙基叔丁基醚、甲醇、甲基叔丁基醚、正丙醇、异丙醇、叔戊基甲基醚。柴油中可包括以下一种或几种含氧化合物:甘油、甲醇、单油酸甘油酯、三油酸甘油酯以及油酸甲酯。但本标准对柴油中总氧含量测定的精密度未作考察。<br />本标准包括A、B、C、D、E五种方法步骤,多种仪器适用(仪器由于含氧物质被检测的方式和定量方式的不同而有所区别)。这些仪器的共同之处在于处理样品时,样品都应在富碳环境中高温裂解。...
2024-01-03 20:12:02浏览:9
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JIS M8221-2-2018 铁矿石镁的测定--第2部分:乙二胺四乙酸二氢二钠滴定法测定共存元素的含量 Iron ores -- Determination of calcium -- Part 2: Disodium dihydrogen ethylenediamine tetraacetate titrimetric determination after separation of co-existed elements
この規格は,鉄鉱石中のカルシウム定量方法のうち,共存元素分離エチレンジアミン四酢酸二水素ニナトリウム滴定法について規定する。<br />この方法は,鉄鉱石中のカルシウム含有率(質斌分率)0.1%以上10%以下の定斌に適用する。<br /><br /> ...
2024-01-03 16:48:01浏览:9
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ISO 17232-2017 皮革--物理和机械试验--漆皮耐热性的测定 Leather -- Physical and mechanical tests -- Determination of heat resistance of patent leather
This document specifies two methods for determining the heat resistance of patent leather. Method A makes use of a modified lastometer, while Method B uses the “Zwik” apparatus. Both methods are applicable to patent leathers for all end uses....
2024-01-03 16:12:01浏览:9
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KS M ISO 8130-1-2019 Coating powders — Part 1: Determination of particle size distribution by sieving
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2024-01-03 15:24:02浏览:9
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KS L ISO 7884-4-2003 Glass-Viscosity And Viscometric Fixed Points-Part 4:Determination Of Viscosity By Beam Bending
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L ISO 7884-4 : 2003
6.2.2 .EF `t-ft- ft- xg-'E W*111 2 - 5 1 i ' S ;kxI 10"dPa? s 61 4° ]j呈 t Tl 011 Ai °l弄 %1 ;d--Al t= °1...2023-12-25 05:12:01浏览:12
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KS M ISO 10106-2020 Cork stoppers — Determination of global migration
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2023-12-21 20:00:02浏览:12
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ISO 2551-2020 铺地织物和瓷砖形式的铺地织物--测定由于不同的水和热条件的影响而产生的尺寸变化以及平面变形 Textile floor coverings and textile floor coverings in tile form — Determination of dimensional changes due to the effects of varied water and heat conditions and distortion out of plane
This document specifies a procedure for the determination of the dimensional changes and distortion out of plane likely to take place when textile floor coverings and tiles are subjected to varied water and heat conditions.<br />The method is applicable to all textile floor coverings and textile floor coverings in tile form....
2023-12-21 15:00:02浏览:9
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NB/SH/T 0936.1-2016 未使用和使用过的绝缘液中腐蚀性硫化物的测定 第1部分:二苄基二硫醚(DBDS)测定法 Test methods for quantitative determination of corrosive sulfur compounds in unused and used insulating liquids--Part 1:Test method for quantitative determination of dibenzyldisulfide (DBDS)&n
本部分规定了定量测定绝缘液中腐蚀性硫化物二苄基二硫醚(DBDS)的试验方法。<br />本部分适用于测定未使用和使用过的绝缘液,二苄基二硫醚(DBDS)浓度范围为5mg/kg~600mg/kg。...
2023-12-21 14:24:01浏览:8
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