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Standard No. Title Price(USD) Delivery Status Add to Cart
GB/T 14419-1993 Analysis of water used in boiler and cooling system. Determination of alkalinity $260.00 via email in 1~3 business day abolished
GB/T 14420-1993 Analysis of water used in boiler and cooling system - Determination of chemical oxygen demand - Rapid method with potassium dichromate $184.00 via email in 1~3 business day superseded
GB/T 14421-1993 Analysis of water used in boiler and cooling system. Determination of polyacrylic acid. Turbidimetric method $180.00 via email in 1~3 business day abolished
GB/T 14422-1993 Analysis of water used in boiler and cooling system-Determination of benzotriazole-Ultraviolet spectrophotometry $184.00 via email in 1~3 business day superseded
GB/T 14423-1993 Analysis of water used in boiler and cooling system. 2-Mercaptobenzothiazole. Ultraviolet spectrophotometry $180.00 via email in 1~3 business day abolished
GB/T 14424-1993 Analysis of water used in boiler and cooling system-Determination of free chlorine residuals $264.00 via email in 1~3 business day superseded
GB/T 14425-1993 Analysis of water used in boiler and cooling system. Determination of sulfurated hydrogen. Spectrophotometry $180.00 via email in 1~3 business day abolished
GB/T 14426-1993 Analysis of water used in boiler and cooling system-Determination of sulfite $100.00 via email in 1~3 business day abolished
GB/T 14427-1993 Analysis of water used in boiler and cooling system. Determination of iron $224.00 via email in 1~3 business day superseded
GB/T 14636-1993 Industrial circulating cooling water--Determination of calcium--Atomic absorption spectrometry $180.00 via email in 1~3 business day superseded
GB/T 14637.1-1993 Industrial circulating cooling water--Determination of zinc--Atomic absorption spectrometry $180.00 via email in 1~3 business day superseded
GB/T 14637.2-1993 Scale in industrial circulating cooling water-Determi zinc-Atomic absorption spectrometry $184.00 via email in 1~3 business day abolished
GB/T 14638.1-1993 Industrial circulating cooling water--Determination of copper--Atomic absorption spectrometry $180.00 via email in 1~3 business day superseded
GB/T 14638.2-1993 Scale in industrial circulating cooling water--Determi copper--Atomic absorption spectrometry $180.00 via email in 1~3 business day superseded
GB/T 14639-1993 Industrial circulating cooling water-Determination of magnesium-Atomic absorption spectrometry $184.00 via email in 1~3 business day abolished
GB/T 14640-1993 Industrial circulating cooling water--Determination of potassium--Atomic absorption spectrometry $180.00 via email in 1~3 business day valid
GB/T 14641-1993 Industrial circulating cooling water-Determination of sodium-Atomic absorption spectrometry $184.00 via email in 1~3 business day abolished
GB/T 14642-1993 Industrial circulating cooling water and boiler waterdetermination of fluorine Choride phosphate Nitrite nitrate and sulfate-Ion chromatography $224.00 via email in 1~3 business day abolished
GB/T 14643.1-1993 Industrial circulating cooling water-Fxamination of bacteria formed deposits-Standarde of plate count $184.00 via email in 1~3 business day superseded
GB/T 14643.2-1993 Industrial circulating cooling water examination of soil micro-bioti-Standarde of plate count $184.00 via email in 1~3 business day superseded
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