共找到 150 條與 重量法 相關(guān)的標(biāo)準(zhǔn)，共 10 頁
本標(biāo)準(zhǔn)規(guī)定了重量法測定水中全鹽量的方法。 本標(biāo)準(zhǔn)適用于農(nóng)田灌溉水質(zhì)、地下水和城市污水中全鹽量的測定。取100.0ml水樣測定，檢測下限為10mg/L
Water quality.Determination of total salt.Gravimetric method
Versione ufficiale della norma europea EN 28343 (edizione nov. 1991) in lingua inglese. La norma ISO 8343-85 e' stata approvata dal CEN il 6 nov.
Ferronickel. Determination of silicon content. Gravimetric method.
The method is applicable to molybdenum contents in the ranges normally found in ferromolybdenum. Specifies principle, reagents, apparatus, sample
Ferromolybdenum; Determination of molybdenum content; Gravimetric method
Gravimetric method for normal range of silicon contents found in iron ores. Reagents, sampling methods, test procedures
Methods for the analysis of iron ores-Silicon (gravimetric method)
Ferroniobium－Determination of niobium content－Gravimetric method
Ferronickel－Determination of silicon content－Gravimetric method
This International Standard specifies a gravimetric method for the determination of the total silicon content in steel and iron. The method
Steel and iron - Determination of total silicon content - Gravimetric method
Gravimetric determination of vanadium content in steel
Ferromolybdenum -- Determination of molybdenum content -- Gravimetric method
Water quality-Determination of total salt content-Gravimetric method
警告：使用本部分的人員應(yīng)有正規(guī)實驗室工作的實踐經(jīng)驗。本部分并未指出所有可能的安全問題。使用者有責(zé)任采取適當(dāng)?shù)陌踩徒】荡胧?，并保證符合國家有關(guān)法規(guī)規(guī)定的條件。 GB／T 21931的本部分規(guī)定了重量發(fā)測定鎳鐵中硅含量。 本部分適用于鎳鐵中硅含量的測定，測定范圍（質(zhì)量分?jǐn)?shù)
Ferronickel.Determination of silicon content.Gravimetric method
This International Standard specifies a gravimetricmethod for the determination of the total silicon con-tent in steel and iron
Steel and iron - Determination of total silicon content - Gravimetric method (ISO 439:1994)
Schválení ST SEV 1241-78 doporu?ilo federální ministerstvo hutnictví a tě?kého strojírenství. Zpracovatel a ONS: ?stav pro v?zkum rud
Lead corcentrates. Determination of sulphur. The gravímetric method.
Ferronickel — Determination of Silicon Content — Gravimetric Method
SAME AS ISO 4934
Steel and iron - Determination of sulfur content - Gravimetric method
