共找到 288 条与 肥料与土壤调理剂 相关的标准,共 20 页
Soil investigation and testing. Direct shear test with shearbox apparatus. Part 1 : direct shear.
Sols : reconnaissance et essais - Auscultation d'un élément de fondation - Partie 2 : méthode par réflexion.
Sols : reconnaissance et essais - Masse volumique sèche d'un élément de roche - Méthode par pesée hydrostatique.
Sols : reconnaissance et essais - Essai statique de pieu isolé sous effort transversal
Soils : investigation and testing. Practical method for identifying the 0/50 mm fraction of a granular material. Determination of particle size and blue value.
This International Standard specifies a method for the gravimetric determination of the mineral-acid-soluble sulfate content of solid fertilizers. The method is ap-plicable to fertilizers with sulfate contents, expressed as SO3, from 3 % (m/m) to 50 % (m/m).
Fertilizers. Chemical analysis. Method for determination of mineral-acid-soluble sulfate content of solid fertilizers
Solid fertilizers; simple sampling method for small lots
This International Standard specifies a method of checking the performance of mechanical devices for sampling fertilizers moving in bulk by comparison of particle size distribution with that obtained by a refer- ence method. It is applicable to any form of mechanical sampling device installed at some point in a bulk-handling sys- tem, providing that either the fertilizer passes along a conveyor belt, before or after the device, or it is sub- sequently packed in bags in order that a reference collection can be made. NOTE 1 Although the mechanical sampling may be used for the collection of samples for chemical analysis instead of or as well as for physical testing, any bias will be more easily and economically found by size analysis than by chemical analysis of the nutrients.
Solid fertilizers; method of checking the performance of mechanical devices for sampling of product moving in bulk
Solid fertilizers; determination of mineral-acid-soluble sulfate content; gravimetric method
Growing media - Determination of conductivity, resistivity and pH
NF U42-001 Dec. 81 Modification 2
Fertilizers. Fertilizers with declared micronutrient(s) content(s) for application to the soil. Part 2 : micronutrient(s) in organic combination(s). Types and specifications.
2nd revision of NF U42-001-81
This Technical Report presents the sampling theory which has resulted in the definition of the sampling plan described in ISO 8634. The sampling plan is applicable to a large delivery of more than 250 t of fertilizer supplied to another party, for resale, on his own responsibility, in small lots, each of which would be subject to legislation. By large amount is understood, for example, a full boat-load (5,000 t, 10,000 t or more) thus corresponding to a relatively long period of manufacture, but the theory applies to any delivery of 250 t or more. note:1) To be published.
Fertilizers. Sampling. Guide to derivation of a sampling plan for the evalution of a large delivery of solid fertilizer
Fertilizers. Sampling. Guide to derivation of a sampling plan for the evalution of a large delivery of solid fertilizer
本标准规定了冷烂型水稻土采用有机肥与主要化学肥料配合,建立利用、改良、培肥土壤体系的技术要求。本标准适用于丘陵山区冷烂型水稻土早、中、晚稻大田施肥和配套栽培技术。
Technical specifications for formula fertilization of cold rotten paddy soil
Reinforcement of soils by inclusions. General and terminology.
Method for sampling a delivery of more than 250 t of solid fertilizer and presents rules for assessing whether the delivery can be accepted by a buyer.
Fertilizers - Sampling - Sampling plan for the evaluation of a large delivery of solid fertilizer
Preparation of samples including those that are difficult to grind mechanically, that contain organic matter and that comprise several different materials.
Fertilizers. Sampling. Methods for preparation of samples of solid fertilizer for chemical and physical analysis
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