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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本标准规定了漂白亚硫酸盐木浆的分类、要求、试验方法、检验规则和标志、包装、运输、贮存。 本标准适用于制造各种纸和纸板用的漂白亚硫酸盐木浆。
Bleached sulfite pulp
本标准规定了天然水、炉水、给水及冷却水中亚硫酸盐的测定方法。 本标准适用于天然水、炉水、给水及冷却水中亚硫酸盐的测定。
Analysis of water used in boiler and cooling system. Determination of sulfite
本标准规定了本色亚硫酸盐针叶木浆的技术规范。 本标准适用于制造防油纸、防潮原纸、鸡皮纸、新闻纸等纸张及纸板用的本色亚硫酸盐木浆。
Unbleached sulfite pulp
本标准规定了亚硫酸盐漂白木浆的技术规范。 本标准适用于制造各种纸和纸板用的漂白亚硫酸盐木浆。
Bleached sulfite pulp
本标准适用于制造一般纸及纸板的漂白亚硫酸盐苇浆。
Bleached sulphite reedpulp
Standard Test Method for Lignosulfonates (Sulfite Cellulose) in Tanning Extracts
Standard Test Method for Lignosulfonates (Sulfite Cellulose) in Tanning Extracts
Water quality — Detection and enumeration of the spores of sulfite-reducing anaerobes(clostridia)
本标准规定了出口食品中厌氧亚硫酸盐还原梭状芽孢杆菌检测方法。本标准适用于出口食品中厌氧亚硫酸盐还原梭状芽孢杆菌检测。
Method for the determination of anaerobic sulfite-reducing clostridia in food for export
Soil quality - Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials - Part 2: Extraction of crystalline iron oxides and hydroxides with dithionite (ISO 12782-2:2012); German version EN ISO 12782-2:2012
Soil quality - Parameters for geochemical modelling of leaching and speciation of constituents in soils and soil materials - Part 2 : extraction of crystalline iron oxides with dithionite.
Soil quality. Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials. Extraction of crystalline iron oxides and hydroxides with dithionite
This part of ISO 12782 specifies the determination of the content of “reactive” iron in the form of crystrallineiron oxides and hydroxides in soil and other materials by extraction with dithionite. Other materials also includewaste. The content of “reactive” iron can be used as input in geochemical models to represent the content ofcrystalline iron (hydr)oxides.
Soil quality - Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials - Part 2: Extraction of crystalline iron oxides and hydroxides with dithionite (ISO 12782-2:2012)
Soil quality - Parameters for geochemical modelling of leaching and speciation of constituents in soils and materials - Part 2: Extraction of crystalline iron oxides and hydroxides with dithionite
이 표준은 액체배지의 첨가에 의한 아황산염 환원 혐기성 미생물(clostridia) 포자의
Water quality-Detection and enumeration of the spores of sulfite-reducing anaerobes(clostridia)-Part 2:Method by membrane filtration
이 표준은 액체배지에의 첨가에 의한 아황산염 환원 혐기성 미생물(clostridia) 포자
Water quality-Detection and enumeration of the spores of sulfite-reducing anaerobes(clostridia)-Part 1:Method by enrichment in a liquid medium
이 표준은 액체배지에의 첨가에 의한 아황산염 환원 혐기성 미생물(clostridia) 포자
Water quality-Detection and enumeration of the spores of sulfite-reducing anaerobes(clostridia)-Part 1:Method by enrichment in a liquid medium
Microbiology of food and animal feeding stuffs - Anaerobic enumeration of sulfito-reducing bacteria by colony count technique at 46 oC.
Standard Test Method for Lignosulfonates (Sulfite Cellulose) in Tanning Extracts
이 표준은 수용액의 용존 음이온 측정 방법에 대하여 규정한다.― 요오드화물, 티오시안산
Water quality-Determination of dissolved anions by liquid chromatography of ions-Part 3:Determination of chromate, iodide, sulfite, thiocyanate and thiosulfate
Water quality-Determination of dissolved anions by liquid chromatography of ions-Part 3:Determination of chromate, iodide, sulfite, thiocyanate and thiosulfate
En ciertos papeles, particularmente los destinados a envolver metales, es de gran interés que no contengan substan-cias que puedan atacar a éstos. La presencia de cloro, cloruros o ácidos en el papel, hace a éste inadecuado para envolver objetos de hierro, acero o aluminio, en los que originaría la formación de óxidos. Igualmente un papel con azufre, sulfuros o sulfitos, que se aplicara a envolver objetos de plata, cobre o aleaciones cupríferas, originaría en éstos una corrosión por la formación de compuestos sulfurados. Esta norma tiene por objeto indicar unos métodos, para la investigación de dichas substancias en el papel de em-balajes.
2.1. Las prescripciones de la presente norma se aplicarán al examen de las aguas en general y, especialmente, a las usadas en la industria. 2. 2. Las aguas de calderas, de alimentación de calderas y, en general, las aguas tratadas con sulfitos para absorber el oxígeno residual que no se ha podido eliminar en los dcsaireadores usuales se ensayarán por el método prescrito en 4. 3. 2. 3. Las demás aguas se ensayarán por el método volumétrico prescrito en 4. 4. o por el método gravimétrico prescrito en 4. 5. 2.4. ?1 límite inferior determinable de los métodos volumétricos es 0,1 mg/? SO3". 2.5. Si las materias orgánicas contenidas en un litro de agua consumen más de 60 mg/? de permanganato de potasio, equivalente a 18,4 m? de solución 0,1 -N KMnO4 se usará para cualquier agua el método gravimétrico prescrito en 4. 5. 2.6. El método gravimétrico es de aplicación general y se recomienda especialmente para la determinación del ion sulfito en altas concentraciones.
Natural gases.Method for the determination of hydrogen sulphite and mercaptane content
Sugar and sugar products.The determination of sulfite by the rosaniline colorimetric method
Aggregates for concrete and mortar.Test methods.Part 16: Determination of sulfate and sulfite content
Water quality.Determination of dissolved anion by liquid chromatography of ions.Part 3: Determination of chromate, iodide, sulfite, thiocyanate and thiosulffate
Chemicals used for treatment of water intended for human consumption - Sodium disulfite.
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Water and waste water - Part 32: Test methods of sulphite (SO3=) content by titrimetry
Sulphite pulp for paper
Standard Test Method for Lignosulfonates (Sulfite Cellulose) in Tanning Extracts
This International Standard specifies a horizontal method for the enumeration of sulfite-reducing bacteria growing under anaerobic conditions. It is applicable to — products intended for human consumption and the feeding of animals, and — environmental samples in the area of food production and food handling.
Microbiology of food and animal feeding stuffs - Horizontal method for the enumeration of sulfite-reducing bacteria growing under anaerobic conditions
Microbiology of food and animal feeding stuffs — Horizontal method for the enumeration of sulfite-reducing bacteria growing under anaerobic conditions
Specifies a method for the detection and enumeration of the spores of sulfite-reducing anaerobes (clostrisdia) by membrane filtration.
Water quality - Detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia) Part 2: Method by membrane filtration
Specifies a method for the detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia) by enrichment in a liquid medium.
Water quality - Detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia) Part 1: Method by enrichment in a liquid medium