GB 19106-2013 English PDFGB 19106: Historical versions
Basic dataStandard ID: GB 19106-2013 (GB19106-2013)Description (Translated English): [GB/T 19106-2013] Sodium hypochlorite Sector / Industry: National Standard Classification of Chinese Standard: G12 Classification of International Standard: 71.060.50 Word Count Estimation: 11,172 Older Standard (superseded by this standard): GB 19106-2003 Quoted Standard: GB 190; GB/T 191; GB/T 601; GB/T 602; GB/T 603; GB/T 6678; GB/T 6680; GB/T 6682; GB/T 8170; GB 19107 Regulation (derived from): National Standards Bulletin 2013 No. 23 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: sodium hypochlorite requirements, sampling, test methods, inspection rules and signs, packaging, transport and storage. This standard applies to: sodium chloride and obtained sodium hypochlorite. GB 19106-2013:---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.[GB/T 19106-2013] Sodium hypochlorite ICS 71.060.50 G12 National Standards of People's Republic of China Replace GB 19106-2003 Sodium hypochlorite Since March 23,.2017, this standard has become recommended Standard, the serial number was changed to GB/T 19106-2013. Released on.2013-11-27 2014-12-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Issued by the National Standardization Administration of China ForewordThe heavy metals and arsenic indicators in Table 1 of this standard and Chapter 7 are mandatory, and the rest are recommended. This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB 19106-2003 "Sodium Hypochlorite Solution". Compared with GB 19106-2003, the main technical changes are as follows. ---Modified some normative reference documents (see Chapter 2, Chapter 2 of the.2003 edition); ---A type has increased the A-I specification (see 3.2, 3.2 in the.2003 edition); ---The mandatory requirements are different (see 3.2 and Chapter 7, the.2003 edition of 3.2, Chapter 7 and Chapter 8); --- Modified the solution for adjusting the zero point of the spectrophotometer when determining the iron content (see 5.5.4.1.2, 5.3.4.1.2 of the.2003 edition); ---Add "sodium sulfide solution" precipitant (see 5.6.2.5 and 5.6.4.4, 5.4.4.3 of the.2003 edition); ---Improved the analysis steps for the determination of heavy metals (see 5.6.4); ---Modified the inspection rules (see Chapter 6, Chapter 6 of the.2003 edition); ---Added the requirements of "Production License Signs, Safety Labels and the "Upward" Signs specified in GB/T 191" (see 7.1.1,.2003 7.1 of the year edition); ---Added the requirement that "each batch of sodium hypochlorite should be accompanied by a safety technical specification" (see 7.1.2); ---Modified the content of the quality certificate (see 7.1.2, 6.3 of the.2003 edition); --- Delete the "safety" chapter, put the relevant content in the form of warning words after the standard name (Chapter 8 of the.2003 edition). This standard was proposed by the China Petroleum and Chemical Industry Federation. This standard is under the jurisdiction of the Chlor-Alkali Branch of the National Chemical Standardization Technical Committee (SAC/TC63/SC6). Drafting organizations of this standard. Hangzhou Electrochemical Group Co., Ltd., Fujian Meizhouwan Chlor-Alkali Industry Co., Ltd., Shandong Dadi Salt Chemical Group Co., Ltd. The company, Binhua Group Co., Ltd., Jinxi Chemical Research Institute. The main drafters of this standard. Chen Peiyun, Wang Jianying, Jiang Wenfeng, Tian Qixiang, Zhang Zhongzheng, Zhu Changjian, Li Furong, Hu Liming. The previous editions of the standard replaced by this standard are as follows. ---GB 19106-2003. Sodium hypochlorite Warning. Sodium hypochlorite is highly corrosive. The operator should take appropriate safety and health measures. Protective equipment such as acid-base gloves.1 ScopeThis standard specifies the requirements, sampling, test methods, inspection rules and signs, packaging, transportation and storage of sodium hypochlorite. This standard applies to sodium hypochlorite prepared by chlorination of sodium hydroxide.2 Normative referencesThe following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document. GB 190 Dangerous Goods Packaging Mark GB/T 191 Packaging, Storage and Transportation Graphic Mark (GB/T 191-2009, ISO 780.1997, MOD) GB/T 601 Preparation of Standard Titration Solution for Chemical Reagents GB/T 602 Preparation of standard solutions for impurity determination of chemical reagents (GB/T 602-2002, ISO 6353-1.1982, NEQ) Preparation of preparations and products used in GB/T 603 chemical reagent test method (GB/T 603-2002, ISO 6353-1.1982, NEQ) GB/T 6678 General Rules for Sampling of Chemical Products GB/T 6680 General Rules for Sampling of Liquid Chemical Products GB/T 6682 Analytical laboratory water specifications and test methods (GB/T 6682-2008, ISO 3696.1987, MOD) GB/T 8170 Numerical rounding rules and the expression and determination of limit values GB 19107 Sodium hypochlorite solution packaging requirements3 requirements3.1 Appearance. light yellow liquid. 3.2 Sodium hypochlorite should meet the requirements of Table 1.4 sampling4.1 Products are inspected in batches. The production enterprise takes the finished tank, the sodium hypochlorite produced in one day or one production cycle as a batch. User The same batch of sodium hypochlorite arrived is one batch. 4.2 When sodium hypochlorite is shipped in a tanker or storage tank, use the oxidation-resistant sampler specified in GB/T 6680 to start from the upper, middle and lower depths of different depths. Three places (the upper part is one-tenth of the liquid layer from the liquid surface, and the lower part is one-tenth of the liquid layer from the bottom of the liquid) to take the same amount of samples. 4.3 Sodium hypochlorite was sampled from plastic barrels, plastic cans, and combined packaging consisting of plastic bottle packaging and fiberboard boxes (including corrugated boxes) At the time, according to the number of sampling units specified in GB/T 6678, samples should be taken with the oxidation-resistant sampler specified in GB/T 6680. 4.4 Mix the sample taken, put it in a clean, dry brown bottle with a ground stopper, and seal it. The sample volume shall not be less than.200mL. Sample A label should be affixed to the bottle, and the name of the manufacturer, product name, model specification, batch number or production date, sampling amount, sampling date and sampling date should be indicated. The name of the person, etc.5 Test methodSafety Tips. Some reagents in this test method are toxic or corrosive, so you should be careful when handling them. If splashed on the skin, use them immediately. Rinse with water, and treat severe cases immediately. 5.1 General provisions The reagents and water used in this standard refer to analytical reagents and the tertiary water specified in GB/T 6682 when other requirements are not specified. The standard titration solutions, impurity standard solutions, preparations and products used in the test, unless other requirements are specified, are in accordance with GB/T 601, GB/T 602, GB/T 603 regulations are prepared. 5.2 Appearance Observe visually under natural light. 5.3 Determination of available chlorine 5.3.1 Method summary In an acidic medium, hypochlorite reacts with potassium iodide to precipitate iodine. Using starch as an indicator solution, use sodium thiosulfate standard titration solution to drop Set, until the blue disappears as the end point. The reaction formula is as follows. 2H ClO- 2I-=I2 Cl- H2O I2 2S2O32-=S4O62- 2I- 5.3.2 Reagents 5.3.2.1 Potassium iodide solution. 100g/L. Weigh 100g of potassium iodide, dissolve it in water, dilute to 1000mL, and shake well. 5.3.2.2 Sulfuric acid solution. 3100.Pipette 15mL sulfuric acid, slowly inject 500mL water, cool and shake. 5.3.2.3 Sodium thiosulfate standard titration solution. c(Na2S2O3)=0.1mol/L. 5.3.2.4 Starch indicator solution. 10g/L. 5.3.3 Apparatus General laboratory equipment and 50mL burette (Grade A, division value. 0.1mL). 5.3.4 Analysis steps 5.3.4.1 Sample solution preparation Pipette about 20mL laboratory sample, put it in a 100mL beaker filled with about 20mL water and weighed (accurate to 0.01g), weigh The amount (accurate to 0.01g), then transfer all into a 500mL volumetric flask, dilute to the mark with water, and shake well. This solution is test solution A, use For the determination of available chlorine content, free alkali content, iron content, heavy metal content, and arsenic content. 5.3.4.2 Determination Pipette 10.00mL sample solution A, place it in a 250mL iodine measuring flask containing 50mL water, add 10mL potassium iodide solution and 10mL sulfuric acid solution, quickly close the bottle stopper and seal it with water, and let it stand in the dark for 5 minutes. Titrate with sodium thiosulfate standard titration solution to light yellow, Add 2mL starch indicator solution and continue titration until the blue color disappears as the end point. 5.3.5 Result calculation Available chlorine is calculated as the mass fraction w1 of chlorine (Cl), and the value is expressed in %, calculated according to formula (1). w1= (V/1000)cM m1×(10/500)× 100=5VcMm1 (1) Where. V ---The value of the volume of the sodium thiosulfate standard titration solution, in milliliters (mL); c --- The accurate value of the concentration of sodium thiosulfate standard titration solution, the unit is moles per liter (mol/L); m1 --- the value of the mass of the sample, in grams (g); M ---The value of the molar mass of chlorine (Cl) in grams per mole (g/mol) (M=35.453). 5.3.6 Tolerance Take the arithmetic mean of the parallel measurement results as the measurement result. The absolute value of the difference between the parallel determination results does not exceed 0.2%. 5.4 Determination of free base 5.4.1 Method summary Decompose hypochlorite with hydrogen peroxide, use phenolphthalein as indicator solution, and titrate with hydrochloric acid standard titration solution to reddish as the end point. Reaction formula as follows. ClO- H2O2=Cl- O2 H2O OH- H =H2O 5.4.2 Reagents and materials 5.4.2.1 Hydrogen peroxide solution. 15; 5.4.2.2 Hydrochloric acid standard titration solution. c(HCl)=0.1mol/L; 5.4.2.3 Phenolphthalein indicator solution. 10g/L; 5.4.2.4 Starch-potassium iodide test paper. 5.4.3 Apparatus General laboratory equipment and 25mL burette (A grade, graduation value. 0.1mL). 5.4.4 Analysis steps Pipette 50.00mL sample solution A, place it in a 250mL conical flask, add hydrogen peroxide solution dropwise until it does not contain hypochlorite (do not use Starch-potassium iodide test paper turns blue), add (2~3) drops of phenolphthalein indicator solution, titrate with hydrochloric acid standard titration solution to reddish as the end point. 5.4.5 Result calculation The free alkali is calculated by the mass fraction w2 of sodium hydroxide (NaOH), and the value is expressed in %, which is expressed by formula (2). w2= (V/1000)cM m1×(50/500)× 100=VcMm1 (2) Where. c ---The accurate value of the concentration of the hydrochloric acid standard titration solution, the unit is moles per liter (mol/L); V ---The value of the volume of the hydrochloric acid standard titration solution, in milliliter (mL); m1---the value of the mass of the sample, in grams (g); M ---The value of the molar mass of sodium hydroxide (NaOH), in grams per mole (g/mol) (M = 40.00). 5.4.6 Tolerance Take the arithmetic mean of the parallel measurement results as the measurement result. The absolute value of the difference between the parallel determination results is not more than 0.04%. 5.5 Determination of iron 5.5.1 Method summary In a medium without hypochlorite, hydroxylamine hydrochloride reduces Fe3 to Fe2.In a pH (4-6) buffer solution system, Fe2 is the same as Fe2. 1,10-phenanthroline forms an orange-red complex, and its absorbance is measured at the maximum absorption wavelength (510nm) of the spectrophotometer. The reaction formula is as follows. 4Fe3 2NH2OH=4Fe2 N2O H2O 4H Fe2 3C12H8N2=[Fe(C12H8N2)3]2 5.5.2 Reagents and materials 5.5.2.1 Hydrogen peroxide solution. 15. 5.5.2.2 Acetic acid-sodium acetate buffer solution. pH value is about 4.5. 5.5.2.3 Hydroxylamine hydrochloride solution. 10g/L. Weigh 1g of hydroxylamine hydrochloride, dissolve in water, and dilute to 100mL. 5.5.2.4 Iron standard solution. 0.1mg/mL. 5.5.2.5 Iron standard solution. 0.01mg/mL. Pipette 25.00mL standard solution (5.5.2.4) and place it in a 250mL volumetric flask. Dilute with water to the mark and shake well. Prepare this solution before use. 5.5.2.6 1,10-phenanthroline indicator solution. 2g/L. 5.5.2.7 Starch-potassium iodide test paper. 5.5.3 Apparatus General laboratory instruments and spectrophotometers. 5.5.4 Analysis steps 5.5.4.1 Standard curve drawing 5.5.4.1.1 Pipette 0.00mL, 2.00mL, 4.00mL, 6.00mL, 8.00mL, 10.00mL iron standard solution (5.5.2.5) Do not put in 6 100mL volumetric flasks, add 5mL hydroxylamine hydrochloride solution and 10mL acetic acid-sodium acetate buffer to each volumetric flask. Solution and 5mL 1,10-phenanthroline indicator solution, dilute to the mark with water, shake well, and let stand for 10 min. 5.5.4.1.2 Using water as a reference, adjust the spectrophotometer to zero, select an appropriate cuvette at a wavelength of 510nm, and measure the absorbance. 5.5.4.1.3 The absorbance of the blank solution is subtracted from the absorbance of the standard colorimetric solution, and the mass of iron in the 100mL standard colorimetric solution (mg) The abscissa is the abscissa, and the corresponding absorbance is the ordinate. The standard curve or regression linear equation is drawn. 5.5.4.2 Blank test No sample solution is added, and the blank test is carried out using exactly the same analysis steps, reagents and dosage as the test sample solution. 5.5.4.3 Determination Pipette 50.00mL sample solution A, place it in a 100mL volumetric flask, add hydrogen peroxide solution dropwise until it does not contain hypochlorite (do not use Starch-potassium iodide test paper turns blue), then add 5mL hydroxylamine hydrochloride solution, 10mL acetic acid-sodium acetate buffer solution and 5mL 1,10-phenanthroline Indicator solution, dilute to the mark with water, shake well, and let stand for 10 min. The following shall be carried out in accordance with the provisions of 5.5.4.1.2. 5.5.5 Result calculation The iron content is expressed in the mass fraction w3 of iron (Fe), and the value is expressed in %, calculated according to formula (3). w3 = m2 /1000 m1×(50/500)× 100=m2m1 (3) Where. m1---the value of the mass of the sample, in grams (g); m2---The value obtained from the standard curve corresponding to the absorbance of the sample solution after subtracting the absorbance of the blank solution, or a one-element linear return The value of the mass of iron calculated by the normalization equation, in micrograms (mg). 5.5.6 Tolerance Take the arithmetic mean of the parallel measurement results as the measurement result. The absolute value of the difference between the parallel determination results is not more than 0.001%. 5.6 Determination of heavy metals 5.6.1 Method summary Under weakly acidic conditions (pH 3~4), the heavy metal ions and sulfide ions in the sample form a brown-black precipitate, which is similar to the lead treated by the same method. Comparing standard solutions, make a limit test. 5.6.2 Reagents and materials 5.6.2.1 Hydrochloric acid. 5.6.2.2 Hydrogen peroxide solution. 15. 5.6.2.3 Acetic acid-sodium acetate buffer solution. pH value is about 3. 5.6.2.4 Saturated solution of hydrogen sulfide. Pour hydrogen sulfide gas into water without carbon dioxide until it is saturated. Before using this solution preparation. 5.6.2.5 Sodium sulfide solution. Weigh 5g of sodium sulfide, dissolve it in a mixture of 10mL of water and 30mL of glycerol, and store it in a sealed container, protected from light. It is valid for one month. 5.6.2.6 Lead standard solution. 0.1mg/mL. 5.6.2.7 Lead standard solution. 0.01mg/mL. Take an appropriate amount of lead standard solution (5.6.2.6) and dilute it by 10 times. Before using the solution Preparation. 5.6.2.8 Phenolphthalein indicator solution. 10g/L. 5.6.2.9 Starch-potassium iodide test paper. 5.6.3 Apparatus General laboratory equipment and 50mL Nessler colorimetric tube. 5.6.4 Analysis steps 5.6.4.1 Tube A. Pipette 1.00mL lead standard solution (5.6.2.7) into a 50mL Nessler colorimetric tube, add water to 25mL, add 5mL acetic acid-sodium acetate buffer solution, shake well. spare. 5.6.4.2 Tube B. Take a Nessler colorimetric tube matched with tube A, pipette 25.00mL sample solution A, and place it in a 50mL Nessler colorimetric tube In the middle, add hydrogen peroxide solution dropwise until there is no hypochlorite (do not make the starch-potassium iodide test paper blue). Add 1 drop of phenolphthalein indicator solution, use hydrochloric acid Adjust to reddish, add 5mL acetic acid-sodium acetate buffer solution, and shake well. spare. 5.6.4.3 Tube C. Take a 50mL Nessler colorimetric tube matched with tubes A and B, add the same sample solution A of the same amount as tube B, and then Add the same amount of lead standard solution (5.6.2.7) as tube A, add hydrogen peroxide solution dropwise, until it does not contain hypochlorite (do not make starch-potassium iodide The test paper turns blue). Add 1 drop of phenolphthalein indicator solution, adjust to reddish with hydrochloric acid, then add 5mL acetic acid-sodium acetate buffer solution and shake well. spare. 5.6.4.4 Add 10 mL of freshly prepared saturated hydrogen sulfide solution or 2 drops of sodium sulfide solution to each tube, add water to the 50 mL mark, and mix Evenly, place in a dark place for 5 minutes. Observed under a white background, the chromaticity of tube B should not be deeper than that of tube A, and the chromaticity of tube C should be the same as that of tube A. The chroma is equal to or deeper than that of the A tube. 5.7 Determination of arsenic 5.7.1 Method summary In the presence of potassium iodide and stannous chloride, high-valent arsenic is reduced to trivalent arsenic. The new ecological hydrogen and trivalent arsenic produced by zinc particles and acid produce Arsenic hydrogen gas, remove the interference of hydrogen sulfide through lead acetate cotton, and then generate yellow to orange stains with mercury bromide test paper, which is compared with standard arsenic spots Make a limited test. 5.7.2 Reagents and materials The reagents and materials used do not contain arsenic. 5.7.2.1 Hydrochloric acid. 5.7.2.2 Hydrogen peroxide solution. 15. 5.7.2.3 Potassium iodide solution. 150g/L. 5.7.2.4 Stannous chloride solution. 400g/L. 5.7.2.5 Arsenic standard solution. 0.1mg/mL. 5.7.2.6 Arsenic standard solution. 0.001mg/mL. Pipette an appropriate amount of arsenic standard solution (5.7.2.5), diluted 100 times. This solution uses Before preparation. 5.7.2.7 Lead acetate cotton. 5.7.2.8 Mercury bromide test paper. 5.7.2.9 Starch-potassium iodide test paper. 5.7.2.10 Zinc particles. 5.7.3 Apparatus General laboratory equipment and arsenic analyzer. The schematic diagram of the arsenic determination instrument is shown in Figure 1. 5.7.4 Analysis steps 5.7.4.1 Pipette 1.00mL arsenic standard solution (5.7.2.6) into the conical flask of the arsenic analyzer, add 5mL hydrochloric acid, and add water to about 30mL, then add 5mL potassium iodide solution and 5 drops of stannous chloride, shake well, and let stand for 10min. 5.7.4.2 Pipette 25.00mL sample solution A into the Erlenmeyer flask of the arsenic analyzer, and add hydrogen peroxide solution dropwise until it does not contain hypochlorite. Stop (do not make the starch-potassium iodide test paper blue). Use hydrochloric acid to neutralize the sample solution to neutrality, and add 5 mL of hydrochloric acid to excess, add water to about 30 mL, and then Add 5mL potassium iodide solution......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB 19106-2013_English be delivered?Answer: Upon your order, we will start to translate GB 19106-2013_English as soon as possible, and keep you informed of the progress. The lead time is typically in 9 seconds (download/delivered in 9 seconds). The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB 19106-2013_English with my colleagues?Answer: Yes. The purchased PDF of GB 19106-2013_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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