GB/T 13689-2007 English PDFUS$209.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 13689-2007: Water for industrial circulating cooling system and boiler -- Determination of copper Status: Valid GB/T 13689: Historical versions
Basic dataStandard ID: GB/T 13689-2007 (GB/T13689-2007)Description (Translated English): Water for industrial circulating cooling system and boiler -- Determination of copper Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G76 Classification of International Standard: 71.040.40 Word Count Estimation: 8,851 Date of Issue: 2007-08-13 Date of Implementation: 2008-02-01 Older Standard (superseded by this standard): GB/T 13689-1992; GB/T 14418-1993 Quoted Standard: GB/T 602; GB/T 603; GB/T 6682 Regulation (derived from): China National Standard Approval Announcement2007 No.8 (Total No.108) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the natural water, industrial cooling water and boiler water Determination of copper content. This standard zinc reagent for boiler feed water, condensate, steam, internal water cooled generator cooling water and boiler water and other copper content in water samples 2. 5 ��9/L ~ 50/��9/L 's determination, diethyl disulfide on behalf of the amino sodium spectrophotometry for industrial circulating cooling water, variety of industrial water and domestic water copper content 0. 01 m9/L ~ 2. O0 m9 determination/L of, diethyl dithiocarbamate directly applicable photometric industrial circulating cooling water copper content free of suspended solids 0. 05 m9/L ~ 6. O0 m9/L measured. GB/T 13689-2007: Water for industrial circulating cooling system and boiler -- Determination of copper---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Water for industrial circulating cooling system and boiler. Determination of copper ICS 71.040.40 G76 National Standards of People's Republic of China Replacing GB/T 13689-1992, GB/T 14418-1993 Industrial circulating cooling water and boiler water Copper Posted 2007-08-13 2008-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard replaces GB/T 13689-1992 "Industrial circulating cooling water copper diethyl dithiocarbamate spectrophotometry Degree method "and GB/T 14418-1993" boiler water and cooling water analysis Determination of copper. " This standard GB/T 13689-1992 and GB/T 14418-1993 standard content has been adjusted and combined. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee of Chemical Water Treatment Chemicals Branch (SAC/TC63/SC5) centralized. This standard was drafted. Tianjin Chemical Engineering Research and Design Institute. The main drafters of this standard. Li Lin, Bai Ying, Zhu Zhuanjun, Shao Hongqian. This standard replaces the standard release case. --- GB/T 13689-1992; --- GB/T 14418-1993. Industrial circulating cooling water and boiler water Copper1 ScopeThis standard specifies the natural water, industrial cooling water and boiler water Determination of copper content. This standard zinc reagent for boiler feed water, condensate, steam, internal water cooled generator cooling water and boiler water copper content in water samples 2.5μg/L ~ 50μg Determination/L; and diethyl dithiocarbamate spectrophotometry for industrial circulating cooling water, industrial use Water and domestic water in the copper content of 0.01mg/L ~ 2.00mg/L measured; diethyl dithiocarbamate photometric method directly applicable to Industrial circulating cooling water copper content without suspended matter 0.05mg/L ~ 6.00mg/L measurement.2 Normative referencesThe following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 602 Determination of impurities in chemical reagents prepared standard solution (GB/T 602-2002, ISO 6353-1. 1982, NEQ) with GB/T 603 chemical reagent test method Preparations of articles (GB/T 603-2002, ISO 6353-1 with. 1982, NEQ) GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-1992, neq ISO 3696. 1987)3 zinc reagent3.1 Principle In this method, water samples of all copper ion dissolved state, at a pH of 3.5 to 4.8 conditions Zincon (C20H16O6N4SNa) to form a blue complex, and then absorbance was measured at 600nm wavelength. Within a pH range of 3.5 to 4.8, nickel and zinc interference can be ignored, in addition to possible presence of water samples by hydrazine, trivalent chromium, trivalent iron, Aluminum, calcium, magnesium and silicate on the determination of non-interference, interference caused by the coexistence of divalent iron can be added tartaric acid eliminated. 3.2 Reagents and materials Reagent used in this method, unless otherwise specified, use only analytical reagent. Test preparation and products required, did not indicate in the other to When evaluated, according to the provisions of 603 GB/T was prepared. Safety Tips. The criteria used acid is corrosive, should pay attention. When contacted, rinse with plenty of water, avoid inhaling Or contact with the skin. 3.2.1 Water. GB/T 6682, level. 3.2.2 hydrochloric acid (excellent pure). 3.2.3 hydrochloric acid solution. 1 + 4. 3.2.4 nitrate solution. 1 + 2. 3.2.5 sulfuric acid solution. 1 + 2. 3.2.6 isoamyl alcohol. 3.2.7 zinc reagent solution. Weigh 0.075g zinc reagent, add 50mL of methanol (or ethanol) to warm (50 ℃ or less), diluted with water completely dissolved Diluted to 100mL, inject brown bottle. This solution should be stored in a refrigerator, storage for 5d. 3.2.8 ammonium acetate solution. 500g/L. Weigh 500g of ammonium acetate dissolved in water and transferred to 1L volumetric flask and dilute to the mark. In addition to copper in ammonium acetate solution as follows. 100mL Ammonium acetate solution was poured into a separatory funnel, add 20mL Zincon - isoamyl alcohol solution (2mL zinc reagent solution dissolved in 100mL isoamyl alcohol), fully ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 13689-2007_English be delivered?Answer: Upon your order, we will start to translate GB/T 13689-2007_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 13689-2007_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 13689-2007_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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