发布时间:2024-05-27 17:49:26 - 更新时间:2024年06月29日 15:22
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Lignins — Determination of carbohydrate composition in kraft lignin, soda lignin and hydrolysis lignin
本文件规定了近红外法测定燕麦草(Avena sativa. L)青贮饲料中可溶性碳水化合物含量的术语和定义、仪器设备、测定、结果处理和表示、异常样品的确认和处理、准确性和精密度、测试报告等内容和技术。
Operating Procedure for Determination of Water-soluble Carbohydrate Content of Oat Silage by Near-Infrared Spectrum(NIRS)Technology
本标准规定了奶牛全混合日粮中碳水化合物测定的术语和定义、试剂和溶液、仪器设备、测步 骤、计算、重复性的要求。
Pulps — Determination of carbohydrate composition
Pulps - Determination of carbohydrate composition
Standard Test Method for Determination of Carbohydrates in Biomass by Gas Chromatography
Standard Test Method for Determination of Carbohydrates in Biomass by High Performance Liquid Chromatography
Standard Test Method for Carbohydrate Distribution of Cellulosic Materials
测定步骤包括样品采集、样品处理、中性洗涤纤维含量的测定、物理有效因子的测定和瘤胃降解淀粉测定。 本标准测定指标及相关公式如下: pef4.0等于停留在19.0 mm、8.0 mm和4.0 mm分级筛上的饲料颗粒干物质量之和除以分级筛样品总干物质量。pef8.0等于停留在19.0 mm和8.0 mm分级筛上的饲料颗粒干物质量之和除以分级筛样品总干物质量。 pef4.0 =(DM19.0 mm + DM8.0 mm + DM4.0 mm)÷ DMt pef8.0 =(DM19.0 mm + DM8.0 mm)÷ DMt 式中: DM19.0 mm为停留在19.0 mm分级筛上的饲料颗粒干物质,单位为克(g)。 DM8.0 mm为停留在8.0 mm分级筛上的饲料颗粒干物质,单位为克(g)。 DM4.0 mm为停留在4.0 mm分级筛上的饲料颗粒干物质,单位为克(g)。 DMt为筛分样品总干物质,单位为克(g)。 peNDF4.0等于粗饲料或日粮NDF含量与pef4.0的乘积。 peNDF4.0 = NDF × pef4.0 peNDF8.0等于粗饲料或日粮NDF含量与pef8.0的乘积。 peNDF8.0 = NDF × pef8.0 式中: NDF为粗饲料或日粮干物质中中性洗涤纤维的含量。 利用饲料耗酸量、总旋光度和乙醇溶解物的旋光度计算淀粉含量。 W = 20000 ÷ αD20 × (2.5α1 ÷ m1 - 5α2 ÷ m2) 式中: W 为试样中淀粉含量,单位为克每千克(g/kg)。 α1 为测定的总旋光度值,以度(°)表示。 α2 为测定的乙醇溶解物的旋光度值,以度(°)表示。 m1为测定总旋光度时样品的质量,单位为克(g)。 m2为测定乙醇溶解物旋光度时样品的质量,单位为克(g)。 αD20为在波长为589.3 nm(钠光谱D线)处测定纯淀粉比旋度的数值。
Tobacco-Determination of the content of reducing carbohydrates-Continuous-flow analysis method
Tobacco-Determination of the content of reducing carbohydrates-Continuous-flow analysis method
Standard Test Method for Determination of Carbohydrates in Biomass by Gas Chromatography
Standard Test Method for Determination of Carbohydrates in Biomass by High Performance Liquid Chromatography
Alcohol and juices production. Determination of carbohydrate and glycerine products by high performance liquid chromatography
Tobacco - Determination of the content of reducing carbohydrates - Continuous-flow analysis method.
Standard Test Method for Carbohydrate Distribution of Cellulosic Materials
Tobacco — Determination of the content of reducing carbohydrates — Continuous-flow analysis method — Amendment 1:.
Tobacco — Determination of the content of reducing carbohydrates — Continuous-flow analysis method — Amendment 1:.
Tobacco - Determination of the content of reducing carbohydrates - Continuous-flow analysis method; Amendment 1
Meat and meat products. Histological method of identification of plant carbohydrates additives
Grain starch-containing raw material for production of ethanol. Methods for determination of fermented carbohydrates mass fraction
Esta norma tiene por objeto describir un método de ensayo que ponga de manifiesto de una forma rápida y sen-cilla la presencia o ausencia de hidratos de carbono en las aguas utilizadas en la fabricación de morteros y hor-migones. La presencia de hidratos de carbono en las aguas que van a utilizarse para el amasado excluye la posi-bilidad de su empleo.
Standard Test Method for Determination of Carbohydrates in Biomass by Gas Chromatography
The structural carbohydrate content is used in conjunction with other assays to determine the total composition of biomass samples.1.1 This test method describes the determination of structural carbohydrates present in a biomass sample, expressed as the percent mass of an oven-dried sample basis of each anhydrosugar. 1.2 Sample materials suitable for this procedure include hard and softwoods, herbaceous materials, such as sericea and switchgrass, agricultural residues, such as corn stover, wheat straw, and bagasse, wastepaper, such as boxboard, office waste, and newsprint, acid or alkaline-pretreated biomass, washed free of any residual acid or alkali, and the solid fraction of fermentation residues. 1.3 The options for the types of samples to be analyzed in this procedure are: 1.3.1 Prepared Biomass Samples: 1.3.1.1 Air Dried Material8212;Results are reported as the percent by mass, based on the oven-dried mass of the air-dried sample. 1.3.1.2 45x00B0;C Dried Material8212;Results are reported as the percent by mass, based on the oven-dried mass of the 45x00B0;C dried sample. 1.3.1.3 Freeze Dried Material8212;Results are reported as the percent by mass, based on the oven-dried mass of the freeze dried sample. 1.3.2 Extractives-Free Sample8212;Results are reported as the percent by mass, based on the oven-dried mass of the extracted sample. 1.4 This standard method is generally not suitable for samples that contain soluble, nonstructural carbohydrates unless they are removed prior to analysis. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. See Section 8 for specific hazards statements.
Standard Test Method for Determination of Carbohydrates in Biomass by Gas Chromatography
Grain starch-containing raw material for production of ethanol. Methods for determination of fermented carbohydrates mass fraction
Animal feeding stuffs.Method for determination of soluble and hydrolysable carbohydrates content by antrone reagent
Standard Test Method for Determination of Carbohydrates in Biomass by Gas Chromatography
Standard Test Method for Determination of Carbohydrates in Biomass by High Performance Liquid Chromatography
이 규격은 연속 흐름 분석법에 의한 담배 중 환원성 탄수화물 함량의 측정 방법에 대하여 규
Tobacco-Determination of the content of reducing carbohydrates-Continuous-flow analysis method
이 규격은 연속 흐름 분석법에 의한 담배 중 환원성 탄수화물 함량의 측정 방법에 대하여 규
Tobacco-Determination of the content of reducing carbohydrates-Continuous-flow analysis method
Instant coffee-Determination of free and total carbohydrate contents-Method using high-performance anion-exchange chromatography
이 규격은 고속 음이온교환 크로마토그래피를 이용한 인스턴트 커피의 유리 및 총 탄수화물 함
Instant coffee-Determination of free and total carbohydrate contents-Method using high-performance anion-exchange chromatography
이 규격은 고속 음이온교환 크로마토그래피를 이용한 인스턴트 커피의 유리 및 총 탄수화물 함
Instant coffee-Determination of free and total carbohydrate contents-Method using high-performance anion-exchange chromatography
Instant coffee-Determination of free and total carbohydrate contents-Method using high-performance anion-exchange chromatography
Standard Test Method for Carbohydrate Distribution of Cellulosic Materials
Tobacco - Determination of the content of reducing carbohydrates - Continuous-flow analysis method.
Tobacco. Determination of the content of reducing carbohydrates. Continuous-flow analysis method
Tobacco — Determination of the content of reducing carbohydrates — Continuous-flow analysis method