GB/T 5918-2008 English PDFUS$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 5918-2008: Determination of mixing homogeneity for feed products Status: Valid GB/T 5918: Historical versions
Basic dataStandard ID: GB/T 5918-2008 (GB/T5918-2008)Description (Translated English): Determination of mixing homogeneity for feed products Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: B46 Classification of International Standard: 65.120 Word Count Estimation: 6,684 Date of Issue: 2008-08-01 Date of Implementation: 2008-11-01 Older Standard (superseded by this standard): GB/T 5918-1997 Quoted Standard: GB/T 6682 Regulation (derived from): National Standard Approval Announcement 2008 No.12 (Total No.125) 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 two methods for determining the degree of mixing of feed products. That chloride ion selective electrode method and methyl violet method. This standard applies to feed, concentrated feed, detection feed supplement blend uniformity, but also for mixer performance tests. GB/T 5918-2008: Determination of mixing homogeneity for feed products---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.Determination of mixing homogeneity for feed products ICS 65.120 B46 National Standards of People's Republic of China Replacing GB/T 5918-1997 Determination of the degree of mixing of feed products Posted 2008-08-01 2008-11-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard replaces GB/T 5918-1997 "feed mixing uniformity of measurement." This standard GB/T 5918-1997 and the main technical differences are as follows. --- Standard name changed to "feed product mix measurement uniformity"; --- Increased the preamble; --- The standard scope of the words "compound feed, concentrated feed, concentrate supplementary materials"; --- On the sample volume is unified to 200g; --- Chloride ion selective electrode (Arbitration Act) principle textual representation, sampling and sample preparation content made some modifications; --- Law principles methyl violet textual representation, preparation and adding tracer and measuring step textual representation made some modify; --- Remove the NOTES section; --- According to GB/T 20001.4 feature requires rewriting the standard sections. This standard by the National Standardization Technical Committee Feed Industry and focal points. This standard was drafted. Henan University, Henan feed product quality supervision and inspection station. The main drafters of this standard. Wang Weiguo, Sulan Li, Wang Jinrong, Cuizhao Xia, Lin Hui Sin, PAPTY, Zhou Hongxia. This standard replaces the standards previously issued as follows. --- GB/T 5918-1986, GB/T 5918-1997. Determination of the degree of mixing of feed products1 ScopeThis standard specifies two methods for determining the degree of mixing of feed products, namely the chloride ion selective electrode and methyl violet method. This standard applies to feed, concentrated feed, concentrate supplementary material mixing uniformity of detection, but also for mixer performance test.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 analytical laboratory use specifications and test methods (GB/T 6682-1992, neq ISO 3696. 1987) 3 chloride ion selective electrode (Arbitration Act) 3.1 Principle Chlorine ion selective electrode by selective electrode potential response to chlorine ions in solution to determine the content of chlorine ions to the same batch Different samples of feed differentially chloride ion content to reflect the degree of homogeneity of the feed. 3.2 Reagents The following reagents, unless otherwise stated, were of analytical grade. Distilled water, in line with the provisions of three water GB/T 6682's. 3.2.1 nitric acid solution. concentration of about 0.5mol/L, was diluted with water to absorb nitric acid 35mL 1000mL. 3.2.2 Potassium nitrate solution. concentration of about 2.5mol/L, weighed 252.75g potassium nitrate in the beaker, add water, heat gently to dissolve, diluted with water to 1000mL. 3.2.3 Chloride standard solution. Weigh learn 550 ℃ sodium chloride 8.2440g burning 1h after cooling in a beaker, add water, heat gently to dissolve, Into 1000mL volumetric flask, dilute to the mark, shake, chlorine ions in solution 5mg/mL. 3.3 Instrument 3.3.1 chlorine ion selective electrode. 3.3.2 double salt bridge SCE. 3.3.3 pH meter or potentiometer. accuracy 0.2mV. 3.3.4 magnetic stirrer. 3.3.5 beaker. 100mL, 250mL. 3.3.6 pipette. 1mL, 5mL, 10mL. 3.3.7 flask. 50mL. 3.3.8 Analytical Balance. a sense of the amount of 0.0001g. 3.4 Sampling 3.4.1 Law required samples should be taken separately. 3.4.2 Each batch of feed products extracted 10 representative of the original sample, sampling of each sample is about 200g. Determine the sampling points should be Consider the depth representative of all places the number of bags or stream, but each sample should concentrate a little sampling. It does not allow any sampling flip Or mixed. 3.5 Sample Preparation Each sample was thoroughly mixed in a laboratory. Feed pellet sample to be pulverized by 1.40mm sieve. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 5918-2008_English be delivered?Answer: Upon your order, we will start to translate GB/T 5918-2008_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 5918-2008_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 5918-2008_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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