標(biāo)準(zhǔn)編號(hào):	GB/T 5750.5-2023
中文名稱:	生活飲用水標(biāo)準(zhǔn)檢驗(yàn)方法 第5部分：無機(jī)非金屬指標(biāo)
英文名稱:	Standard examination methods for drinking water—Part 5：Inorganic nonmetallic indices
中標(biāo)分類:	C51    環(huán)境衛(wèi)生
行業(yè)分類:	GB    國(guó)家標(biāo)準(zhǔn)
ICS分類:	13.060 13.060     13.060
發(fā)布機(jī)構(gòu):	國(guó)家市場(chǎng)監(jiān)督管理總局 國(guó)家標(biāo)準(zhǔn)化管理委員會(huì)
發(fā)布日期:	2023-03-17
實(shí)施日期:	2023-10-1
標(biāo)準(zhǔn)狀態(tài):	valid
替代舊標(biāo)準(zhǔn):	GB/T 5750.5-2006 生活飲用水標(biāo)準(zhǔn)檢驗(yàn)方法 無機(jī)非金屬指標(biāo)
翻譯語(yǔ)言:	英文
文件格式:	PDF
中文字符數(shù):	60000 字
翻譯價(jià)格(元):	4200.0
交付時(shí)間:	付款后 1~5 個(gè)工作日

Foreword This document is drafted in accordance with the provisions of GB/T 1.12020 "Guidelines for Standardization Work Part 1: Structure of Standardization Documents and Drafting Rules". This document is part 5 of GB/T 5750 "Standard Test Methods for Drinking Water". GB/T 5750 has published the following parts. Part 1:General Provisions. Part 2: the collection and preservation of water samples. Part 3: Quality control of water quality analysis. Part 4: sensory properties and physical indicators. Part 5: inorganic non-metallic indicators. Part 6: metal and metal-like indicators. Part 7: organic composite indicators. Part 8: organic indicators. Part 9: Pesticide indicators. Part 10: Disinfection by-product indicators. Part 11: Disinfectant indicators. Part 12: Microbial indicators. Part 13: Radioactive indicators This document replaces GB/T 57505-2006 "standard test methods for drinking water inorganic non-metallic indicators" compared with GB/T 5750.5 a 2006, in addition to structural adjustments and editorial changes, the main technical changes are as follows. a) increased the "terms and definitions" (see Chapter 3). b) increased the 8 test methods (see 7.3, 7.4, 11.4, 11,5, 13,4, 14.1, 14.2, 14.3). c) changed 2 test methods (see 9.113.1, 6.111.1 of the 2006 version). Changed the names of three indicators, including "nitrate nitrogen" to "nitrate (in N)", "ammonia nitrogen" to "nitrogen (in N) ) d) "nitrite nitrogen" to "nitrite (N)" (see Chapter 8, Chapter 11, Chapter 12, Chapter 5, Chapter 9, Chapter 10 of the 2006 edition). e) deleted five test methods (see 3.5546.28.111.4 of the 2006 edition). Please note that some of the contents of this document may involve patents. The issuing agency of this document does not assume responsibility for identifying patents This document was proposed and attributed by the National Health and Wellness Commission of the People's Republic of China. Introduction GB/T 5750 "Standard Test Methods for Drinking Water" as a recommended national standard for drinking water testing technology, and GB 5749 "Drinking Water Sanitation Standards" supporting the important technical support of GB 5749, for the implementation of GB 5749, to carry out health and safety evaluation of drinking water to provide test methods. GB / T 5750 consists of 13 parts. Part 1: General Provisions. The purpose is to provide the basic principles and requirements of water quality testing Part 2: the collection and preservation of water samples. The purpose is to provide water samples collected, preservation, management, transport and sampling quality control of the basic principles, measures and requirements. Part 3: Water quality analysis quality control. The purpose is to provide water quality inspection and testing laboratory quality control requirements and methods Part 4: Sensory traits and physical indicators. The purpose is to provide sensory traits and physical indicators of the corresponding test methods Part 5: inorganic non-metallic indicators. The purpose is to provide inorganic non-metallic indicators of the corresponding test methods. Part 6: Metals and metal-like indicators. The purpose is to provide metal and metal-like indicators of the corresponding test methods Part 7: Organic composite indicators. The purpose is to provide a comprehensive index of organic substances corresponding test methods. Part 8: organic indicators. The purpose is to provide the corresponding test methods for organic indicators. Part 9: pesticide indicators. The purpose is to provide the corresponding test methods for pesticide indicators. Part 10: Disinfection by-products indicators. The purpose is to provide the corresponding test methods for disinfection by-product indicators Part 11: Disinfectant indicators. The purpose is to provide the corresponding test methods for disinfectant indicators Part 12: Microbiological indicators. The purpose is to provide the corresponding test methods for microbial indicators Part 13: radioactive indicators. The purpose is to provide the corresponding test methods for radioactive indicators 1 Scope This document describes the determination of sulfate, chloride, fluoride, cyanide, nitrate (in N), sulfide, phosphate, (in N) nitrite (in N), iodide, perchlorate in drinking water and water source water sulfate, chloride, fluoride, cyanide (isonicotinic acid - Vishwakarma spectrophotometric method, isonicotinic acid - barbiturate spectrophotometric method), nitrate (in N ), sulfide, phosphate, ammonia (as N) sub-certainty (as N) iodide determination method. This document applies to the determination of inorganic non-metallic indicators in drinking water and (or) water source water 2 normative reference documents The following documents constitute the essential provisions of this document through the normative references in the text. Among them, note the date of the reference document, only the date of the corresponding version applies to this document; do not note the date of the reference document, its latest version (including all the revision of the list) applies to this document. GB/T 5750.1 standard test methods for drinking water Part 1: General Provisions GB/T 5750.3 standard test methods for drinking water Part 3: Quality control of water quality analysis GB / T6682 analysis of laboratory water specifications and test methods 3 Terms and definitions GB / T 5750.1 and GB / T 5750.3 defined terms and definitions apply to this document 4 Sulfate 4.1 Barium sulfate turbidimetric method 4.1.1 Minimum detection mass concentration The minimum detection mass of this method is 0.25mg, if the 50mL water sample is taken to determine the minimum detection mass concentration of 5mg / L. This method is applicable to the determination of sulfate mass concentration of less than 40mg / L water samples. Stirring speed, time, temperature and reagent addition method can affect the determination of barium sulfate turbidimetric method, therefore requires strict control of the operating conditions consistent. 5 Chloride 5.1 Silver nitrate volumetric method 5.1.1 Minimum detection mass concentration The minimum detection mass of this method is 0.05mg, if 50mL sample is taken to determine the minimum detection mass concentration of 1.0mg / L. Australide and iodide can cause the same reaction, and the mass of the equivalent of chloride into the results. Sulfide, sulfite, thiosulfate and more than 15mg / L of oxygen consumption can interfere with the determination of this method. Sulfite and other interference can be removed by hydrogen peroxide treatment. Higher oxygen consumption of water samples can be treated with potassium permanganate or steamed dry after ashing. 6 Fluoride 6.1 ion selective electrode method 6.1.1 The minimum detection mass concentration of this method is 2g, if the 10mL water sample is measured, the minimum detection mass concentration of 0.2mg/L. Chromaticity, turbidity and more interfering substances can be directly determined by this method. In order to eliminate the interference of OH~ on the determination, the pH value of the measured water sample is controlled at 5.5~6.5. 7 compounds 7.1 Isonicotinic acid - Vishnu ketone spectrophotometric method 7.1.1 The minimum detectable mass concentration of this method is 0.1g, if 250L water sample is taken for evaporation, the minimum detectable mass concentration is 0.002mg/L. Oxidants such as residual chlorine can destroy cyanide, and 0.1g/L sodium sulfite or less than 0.1g/L sodium thiosulfate can be added to the water sample to remove the interference. 7.1.2 Principle In the solution of pH=7.0, the cyanide is transformed into cyanuric chloride by chloramine T, and then interacted with isonicotinic acid-ketone (1-phenyl-3-methyl-5-viologen ketone) to produce blue dye for colorimetric quantification. 8 Nitrate (as N) 8.1 Muscimol spectrophotometric method 8.1.1 Minimum detection mass concentration The minimum detection mass of this method is 0.5g of nitrate (in N), if 1.0 water samples are taken to determine the minimum detection mass concentration of 0.5mg / L. Nitrite is positive interference with this method, the use of sulfamic acid money to remove: chloride is negative interference with this method, the use of silver sulfate to eliminate sulfide 9 N,N-diethyl-p-phenylenediamine spectrophotometric method 9.1.1 Minimum detection mass concentration The minimum detection mass of this method is 1.0g, if the 50mL water sample is taken for determination, the minimum detection mass concentration is 0.02g/L. 9.1.2 Principle of sulfide and N,N-diethyl-p-phenylenediamine and ferric chloride to produce a stable blue color, colorimetric quantification at 665nm 9.1.3 Reagent 10 Phosphate 10.1 Phosphorus key blue spectrophotometric method 10.1.1 Minimum detection mass concentration This method is suitable for the determination of phosphate (HPOF) mass concentration of less than 10mg / L of water samples. 10.1.2 Principle In a strongly acidic solution of phosphate and acid money to generate phosphorus key heteropolyacid, can be reduced by reducing agents (stannous chloride, etc.) to produce a blue complex, when the phosphate content is low, its color intensity is proportional to the phosphate content. 10.1.3 Reagents 11 ammonia (as N) 11.1 Nah reagent spectrophotometric method 11.1.1 Minimum detectable mass concentration The minimum detection mass of this method is 1.0g of nitrogen (in N) If a 50L water sample is taken for determination, the minimum detection mass concentration is 0.02mg/L. 12 nitrite (in N) 12.1 diazo coupling spectrophotometry 12.1.1 Minimum detection mass concentration The minimum detection mass of this method is 0.05g of nitrite (in N) If 50L water samples are taken to determine the minimum detection mass concentration of 0.001mg / L. Trichloramine in water produces red interference. Iron, lead plasma can produce precipitation caused by interference. Copper ions play a catalytic role in the decomposition of diazo salts to low results. Colored ions have interference. 13 Iodide 13.1 Sulfuric acid pavement catalytic spectrophotometry 13.1.1 Minimum detection mass concentration Iodide content in the range of 0g / L ~ 20g / L, the minimum detection quality of this method is 2.4ng (to count) if 2.0mL water samples are taken to determine the minimum detection quality concentration of 1.2g / L; g / L ~ 200g / L range detection method minimum detection quality of 1.6ng (to count), if 0.3mL water samples are taken to determine the minimum detection quality concentration of 5.3g / L. This method is suitable for the determination of iodide in the low concentration range of 0g/L~20g/L and in the high range of g/L~200g/L 14 Perchlorate 14.1 ion chromatography - hydroxide system drenching solution 14.1.1 Minimum detection mass concentration This method is only used for the determination of perchlorate in domestic drinking water.

Foreword Introduction 1 Scope 2 normative reference documents 3 Terms and definitions 4 Sulfate 5 Chloride 6 Fluoride 7 compounds 8 Nitrate (as N) 9 N,N-diethyl-p-phenylenediamine spectrophotometric method 10 Phosphate 11 ammonia (as N) 12 nitrite (in N) 13 Iodide 14 Perchlorate

前言 本文件按照GB/T 1.12020《標(biāo)準(zhǔn)化工作導(dǎo)則第1部分:標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)定起草。 本文件為GB/T 5750《生活飲用水標(biāo)準(zhǔn)檢驗(yàn)方法》的第5部分。GB/T 5750已經(jīng)發(fā)布了以下部分: 第1部分:總則; 第2部分:水樣的采集與保存; 第3部分:水質(zhì)分析質(zhì)量控制; 第4部分:感官性狀和物理指標(biāo); 第5部分:無機(jī)非金屬指標(biāo); 第6部分:金屬和類金屬指標(biāo); 第7部分:有機(jī)物綜合指標(biāo); 第8部分:有機(jī)物指標(biāo): 第9部分:農(nóng)藥指標(biāo); 第10部分:消毒副產(chǎn)物指標(biāo): 第11部分:消毒劑指標(biāo); 第12部分:微生物指標(biāo): 第13部分:放射性指標(biāo) 本文件代替GB/T 57505-2006《生活飲用水標(biāo)準(zhǔn)檢驗(yàn)方法無機(jī)非金屬指標(biāo)》與GB/T 5750.5一2006相比,除結(jié)構(gòu)調(diào)整和編輯性改動(dòng)外,主要技術(shù)變化如下: a)增加了“術(shù)語(yǔ)和定義”(見第3章); b)增加了8個(gè)檢驗(yàn)方法(見7.3、7.4、11.4、11,5、13,4、14.1、14.2、14.3); c)更改了2個(gè)檢驗(yàn)方法(見9.113.1,2006年版的6.111.1); 更改了3項(xiàng)指標(biāo)的名稱，包括“硝酸鹽氮”更改為“硝酸鹽(以N計(jì))”,“氨氮”更改為“氮(以N計(jì)) d)“亞硝酸鹽氮”更改為“亞硝酸鹽(以N計(jì))”(見第8章第11章第12章2006年版的第5章、第9章、第10章); e)刪除了5個(gè)檢驗(yàn)方法(見2006年版的3.5546.28.111.4)。請(qǐng)注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識(shí)別專利的責(zé)任本文件由中華人民共和國(guó)國(guó)家衛(wèi)生健康委員會(huì)提出并歸口。 引言 GB/T 5750《生活飲用水標(biāo)準(zhǔn)檢驗(yàn)方法》作為生活飲用水檢驗(yàn)技術(shù)的推薦性國(guó)家標(biāo)準(zhǔn),與GB 5749《生活飲用水衛(wèi)生標(biāo)準(zhǔn)》配套,是GB 5749的重要技術(shù)支撐，為貫徹實(shí)施GB 5749、開展生活飲用水衛(wèi)生安全性評(píng)價(jià)提供檢驗(yàn)方法。 GB/T 5750由13個(gè)部分構(gòu)成。 第1部分:總則。目的在于提供水質(zhì)檢驗(yàn)的基本原則和要求 第2部分:水樣的采集與保存。目的在于提供水樣采集、保存、管理、運(yùn)輸和采樣質(zhì)量控制的基本原則、措施和要求。 第3部分:水質(zhì)分析質(zhì)量控制。目的在于提供水質(zhì)檢驗(yàn)檢測(cè)實(shí)驗(yàn)室質(zhì)量控制要求與方法 第4部分:感官性狀和物理指標(biāo)。目的在于提供感官性狀和物理指標(biāo)的相應(yīng)檢驗(yàn)方法 第5部分:無機(jī)非金屬指標(biāo)。目的在于提供無機(jī)非金屬指標(biāo)的相應(yīng)檢驗(yàn)方法。 第6部分:金屬和類金屬指標(biāo)。目的在于提供金屬和類金屬指標(biāo)的相應(yīng)檢驗(yàn)方法 第7部分:有機(jī)物綜合指標(biāo)。目的在于提供有機(jī)物綜合指標(biāo)的相應(yīng)檢驗(yàn)方法。 第8部分:有機(jī)物指標(biāo)。目的在于提供有機(jī)物指標(biāo)的相應(yīng)檢驗(yàn)方法。 第9部分:農(nóng)藥指標(biāo)。目的在于提供農(nóng)藥指標(biāo)的相應(yīng)檢驗(yàn)方法。 第10部分:消毒副產(chǎn)物指標(biāo)。目的在于提供消毒副產(chǎn)物指標(biāo)的相應(yīng)檢驗(yàn)方法 第11部分:消毒劑指標(biāo)。目的在于提供消毒劑指標(biāo)的相應(yīng)檢驗(yàn)方法 第12部分:微生物指標(biāo)。目的在于提供微生物指標(biāo)的相應(yīng)檢驗(yàn)方法 第13部分:放射性指標(biāo)。目的在于提供放射性指標(biāo)的相應(yīng)檢驗(yàn)方法 1范圍 本文件描述了生活飲用水中硫酸鹽、氯化物、氟化物、氰化物、硝酸鹽(以N計(jì))、硫化物、磷酸鹽、(以N計(jì))亞硝酸鹽(以N計(jì))、碘化物、高氯酸鹽的測(cè)定方法和水源水中硫酸鹽、氯化物、氟化物、氰化物(異煙酸-毗嘩咻酮分光光度法、異煙酸-巴比妥酸分光光度法)、硝酸鹽(以N計(jì))、硫化物、磷酸鹽、氨(以N計(jì))亞確酸鹽(以N計(jì))碘化物的測(cè)定方法。 本文件適用于生活飲用水和(或)水源水中無機(jī)非金屬指標(biāo)的測(cè)定 2規(guī)范性引用文件 下列文件中的內(nèi)容通過文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文件,僅該日期對(duì)應(yīng)的版本適用于本文件;不注日期的引用文件,其最新版本(包括所有的修改單)適用于本文件。 GB/T 5750.1生活飲用水標(biāo)準(zhǔn)檢驗(yàn)方法第1部分:總則 GB/T 5750.3生活飲用水標(biāo)準(zhǔn)檢驗(yàn)方法第3部分:水質(zhì)分析質(zhì)量控制 GB/T6682分析實(shí)驗(yàn)室用水規(guī)格和試驗(yàn)方法 8術(shù)語(yǔ)和定義 GB/T 5750.1和GB/T 5750.3界定的術(shù)語(yǔ)和定義適用于本文件 4硫酸鹽 4.1硫酸鋇比濁法 4.1.1最低檢測(cè)質(zhì)量濃度 本方法最低檢測(cè)質(zhì)量為0.25mg,若取50mL水樣測(cè)定最低檢測(cè)質(zhì)量濃度為5mg/L。本方法適用于測(cè)定硫酸鹽質(zhì)量濃度低于40mg/L的水樣。攪拌速度、時(shí)間、溫度及試劑加人方式均能影響硫酸鋇比濁法的測(cè)定結(jié)果，因此要求嚴(yán)格控制操作條件的一致。 5氯化物 5.1硝酸銀容量法 5.1.1最低檢測(cè)質(zhì)量濃度 本方法最低檢測(cè)質(zhì)量為0.05mg,若取50mL樣測(cè)定，則最低檢測(cè)質(zhì)量濃度為1.0mg/L。澳化物及碘化物均能引起相同反應(yīng),并以相當(dāng)于氯化物的質(zhì)量計(jì)入結(jié)果。硫化物、亞硫酸鹽、硫代硫酸鹽及超過15mg/L的耗氧量可干擾本方法測(cè)定。亞硫酸鹽等干擾可用過氧化氫處理除去。耗氧量較高的水樣可用高錳酸鉀處理或蒸干后灰化處理。 6氟化物 6.1離子選擇電極法 6.1.1最低檢測(cè)質(zhì)量濃度本方法最低檢測(cè)質(zhì)量為2g,若取10mL水樣測(cè)定，則最低檢測(cè)質(zhì)量濃度為0.2mg/L。色度、渾濁度較高及干擾物質(zhì)較多的水樣可用本方法直接測(cè)定。為消除OH~對(duì)測(cè)定的干擾，將測(cè)定的水樣pH值控制在5.5~6.5。 7化物 7.1異煙酸-毗咻酮分光光度法 7.1.1最低檢測(cè)質(zhì)量濃度本方法最低檢測(cè)質(zhì)量為0.1g，若取250L水樣蒸留測(cè)定，則最低檢測(cè)質(zhì)量濃度為0.002mg/L。氧化劑如余氯等可破壞氰化物,可在水樣中加0.1g/L亞酸鈉或少于0.1g/L的硫代硫酸鈉除去干擾。 7.1.2原理 在pH=7.0的溶液中，用氯胺T將氰化物轉(zhuǎn)變?yōu)槁然瑁倥c異煙酸-酮(1-苯基-3-甲基-5-毗嘩咻酮)作用,生成藍(lán)色染料，比色定量。 8硝酸鹽(以N計(jì)) 8.1麝香草酚分光光度法 8.1.1最低檢測(cè)質(zhì)量濃度 本方法最低檢測(cè)質(zhì)量為0.5g硝酸鹽(以N計(jì)),若取1.0水樣測(cè)定,則最低檢測(cè)質(zhì)量濃度為0.5mg/L。 亞硝酸鹽對(duì)本方法呈正干擾,可用氨基磺酸錢除去:氯化物對(duì)本方法呈負(fù)干擾,可用硫酸銀消除硫化物 9.1N,N-二乙基對(duì)苯二胺分光光度法 9.1.1最低檢測(cè)質(zhì)量濃度 本方法最低檢測(cè)質(zhì)量為1.0g，若取50mL水樣測(cè)定，則最低檢測(cè)質(zhì)量濃度為0.02g/L。 9.1.2原理硫化物與N,N-二乙基對(duì)苯二胺及氯化鐵作用,生成穩(wěn)定的藍(lán)色,于665nm波長(zhǎng)比色定量 9.1.3試劑 10磷酸鹽 10.1磷鑰藍(lán)分光光度法 10.1.1最低檢測(cè)質(zhì)量濃度 本方法最低檢測(cè)質(zhì)量為5g,若取50mL水樣測(cè)定，則其最低檢測(cè)質(zhì)量濃度為.1mg/L。本方法適用于測(cè)定磷酸鹽(HPOF)質(zhì)量濃度低于10mg/L的水樣。 10.1.2原理 在強(qiáng)酸性溶液中磷酸鹽與酸錢作用生成磷鑰雜多酸，能被還原劑(氯化亞錫等)還原，生成藍(lán)色的絡(luò)合物，當(dāng)磷酸鹽含量較低時(shí)，其顏色強(qiáng)度與磷酸鹽的含量成正比。 10.1.3試劑 11氨(以N計(jì)) 11.1納氏試劑分光光度法 11.1.1最低檢測(cè)質(zhì)量濃度 本方法最低檢測(cè)質(zhì)量為1.0g氮(以N計(jì))若取50L水樣測(cè)定，則最低檢測(cè)質(zhì)量濃度為 0.02mg/L。 12亞硝酸鹽(以N計(jì)) 12.1重氮偶合分光光度法 12.1.1最低檢測(cè)質(zhì)量濃度 本方法最低檢測(cè)質(zhì)量為0.05g亞硝酸鹽(以N計(jì))若取50L水樣測(cè)定，則最低檢測(cè)質(zhì)量濃度為0.001mg/L。 水中三氯胺產(chǎn)生紅色干擾。鐵、鉛等離子可產(chǎn)生沉淀引起干擾。銅離子起催化作用,可分解重氮鹽使結(jié)果偏低。有色離子有干擾。 13碘化物 13.1硫酸鋪催化分光光度法 13.1.1最低檢測(cè)質(zhì)量濃度 碘化物含量在0g/L~20g/L范圍內(nèi)，本方法最低檢測(cè)質(zhì)量為2.4ng(以計(jì))若取2.0mL水樣測(cè)定，最低檢測(cè)質(zhì)量濃度為1.2g/L;g/L~200g/L范圍檢測(cè)方法最低檢測(cè)質(zhì)量為1.6ng(以廠計(jì)),若取0.3mL水樣測(cè)定,最低檢測(cè)質(zhì)量濃度為5.3g/L。 本方法適宜測(cè)定0g/L~20g/L低濃度范圍和g/L~200g/L高度范圍的碘化物 14高氯酸鹽 14.1離子色譜法-氫氧根系統(tǒng)淋洗液 14.1.1最低檢測(cè)質(zhì)量濃度 本方法最低檢測(cè)質(zhì)量為2.5ng,進(jìn)樣量為500時(shí)，最低檢測(cè)質(zhì)量濃度為5g/L。本方法僅用于生活飲用水中高氯酸鹽的測(cè)定