GB/T 23949-2009 English PDFUS$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 23949-2009: Inorganic chemicals for industrial use -- General method for the determination of dry residue after evaporation Status: Valid
Basic dataStandard ID: GB/T 23949-2009 (GB/T23949-2009)Description (Translated English): Inorganic chemicals for industrial use -- General method for the determination of dry residue after evaporation Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G10 Classification of International Standard: 71.060.01 Word Count Estimation: 8,880 Date of Issue: 2009-06-02 Date of Implementation: 2010-02-01 Quoted Standard: GB/T 6682-2008 Regulation (derived from): National Standard Approval Announcement 2009 No.8 (Total No.148) 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 inorganic chemical products used Gravimetric method common method of evaporation residue feed, analysis step, calculated results. This standard applies to operating temperature, there are differences in the subject and the residue stability or volatility of inorganic chemical products. GB/T 23949-2009: Inorganic chemicals for industrial use -- General method for the determination of dry residue after evaporation---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. Inorganic chemicals for industrial use. General method for the determination of dry residue after evaporation ICS 71.060.01 G10 National Standards of People's Republic of China Inorganic chemical products General method for determination of evaporation residue Posted 2009-06-02 2010-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThe standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee chemical inorganic chemicals Club (SAC/TC63/SC1) centralized. This standard is mainly drafted by. Fluoride Chemicals Co., Ltd., CNOOC Tianjin Chemical Research & Design Institute. The main drafters of this standard. Shi Xiuhua, Guoxian Hui, Gao Peng. This standard is the first release. Inorganic chemical products General method for determination of evaporation residue1 ScopeThis standard specifies the inorganic chemical products by Gravimetric general method of evaporation residue method summary, the analysis step, the results Calculations. This standard applies to the operating temperature, there are differences in the body and the residue stability or volatile inorganic chemical products.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 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD)3 Method summaryUsing differential sample body and volatile nature of the residue, the sample was evaporated to dryness in a water bath, and dried in an oven to a constant mass, the sample Body and the residue was completely separated, said the quality of the residue.4 General ProvisionsThe standard water, and did not indicate when the other requirements, refer to three analytical reagent water and GB/T 6682-2008 stipulated.5 instruments and equipment5.1 evaporation vessel. evaporating dish, beaker or crucible, made of platinum, quartz, borosilicate glass or ceramic. 5.2 water bath. 5.3 Electric oven. temperature can be controlled at 105 ℃ ± 2 ℃. Step 6 Analysis A predetermined amount of sample, depending on the nature of the sample selected the appropriate material evaporation vessel has been washed with water and placed in dry at 105 ℃ ± 2 ℃ Dry to a constant mass of predetermined evaporation vessel, the sample was evaporated to dryness in a water bath at the appropriate temperature (if necessary, carry out this operation in a hood), And then dried at 105 ℃ ± 2 ℃ in the electric oven to a constant mass.7 Results CalculationEvaporation residue on mass fraction w1 and its value is expressed in%, according to equation (1), (2) Calculated. W1 m1 = m1 2- ρ × Vp × 100 (1) 2- or w1 = m1 m1 m1 × 100 (2) Where. Value m1 2 --- evaporating dish and sample mass, in grams (g); Value m1 --- evaporating dish of mass in grams (g); ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 23949-2009_English be delivered?Answer: Upon your order, we will start to translate GB/T 23949-2009_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 23949-2009_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 23949-2009_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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