Standard No.:	GB/T 601-2016
English Name:	Chemical Reagent - Preparations of Standard Volumetric Solutions
Chinese Name:	化学试剂 标准滴定溶液的制备
Professional Classification:	GB    National Standard
ICS Classification:	71.040.40 71.040.40    Chemical analysis 71.040.40
Issued by:	AQSIQ,SAC
Issued on:	2016-10-13
Implemented on:	2017-5-1
Status:	valid
Superseding:	GB/T 601-2002 Chemical Reagent - Preparations of Standard Volumetric Solutions
Language:	English
File Format:	PDF
Word Count:	22500 words
Price(USD):	280.0
Delivery:	via email in 1 business day

1 Scope This standard specifies preparation and calibration method of chemical reagent reference titration solution. This standard is applicable to both preparation and calibration of reference titration solution whose chemical reagent purity and impurity content is determined by titration and other areas. 2 Normative References The following documents for the application of this document are essential. For dated reference, only the edition cited applies. For undated references, the latest edition (including any amendments) applies. GB/T 603 Chemical Reagent - Preparations of Reagent Solutions for Use in Test Method GB/T 606 Chemical Reagent - General Method for the Determination of Water - Karl Fischer Method GB/T 6379.6-2009 Accuracy(trueness and precision) of Measurement Methods and Results - Part 6: Use in Practice of Accuracy Values GB/T 6682 Water for Analytical Laboratory Use-Specification and Test Methods GB/T 9725-2007 Chemical Reagent - General Rule for Potentiometric Titration JJG 130 Verification Regulation of Liquid-in-Glass Thermometers for Working JJG 196-2006 Verification Regulation of Working Glass Container JJG 1036 Verification Regulation for Electronic Balance 3 General Requirements 3.1 Unless otherwise specified in this standard, the analytically pure level and above reagents, preparations and products prepared according to GB/T 603 and Grade 3 water (defined in GB/T 6682) shall be adopted for the purpose of this standard. 3.2 The concentration of reference titration solution prepared in this standard refers to that at 20℃ except perchloric acid reference titration solution, hydrochloric acid-ethanol reference titration solution and sodium nitrite reference titration solution [c(NaNO2)=0.5 mol/L]. If calibration, direct preparation and use of reference titration solution is not conducted at 20℃, volume of shall be corrected (see Annex A). Reference titration solution with "calibration prior to use" may not be corrected in case of not large temperature difference during calibration and use. Calibration, direct preparation and analytical balance, burette, one-mark volumetric flask and one-mark pipet for use shall be verified or calibrated periodically according to relevant verification regulation and determination method of burette volume is performed according to Annex B. Besides, one-mark volumetric flask and one-mark pipet shall be provided with volume correction factor.

Foreword i 1 Scope 2 Normative References 3 General Requirements 4 Preparation and Calibration of Reference Titration Solution 4.1 Sodium Hydroxide Reference Titration Solution 4.2 Hydrochloric Acid Reference Titration Solution 4.3 Sulfuric Acid Reference Titration Solution 4.4 Sodium Carbonate Reference Titration Solution 4.5 Potassium Bichromate Reference Titration Solution [c(1/6 K2Cr2O7)=0.1 mol/L] 4.6 Sodium Thiosulfate Reference Titration Solution [c(Na2S2O3)=0.1 mol/L] 4.7 Bromine Reference Titration Solution [c(1/2 Br2)=0.1 mol/L] 4.8 Potassium Bromate Reference Titration Solution [c(1/6 KBrO3)=0.1 mol/L] 4.9 Iodine Reference Titration Solution [c(1/2 I2)=0.1 mol/L] 4.10 Potassium Iodate Reference Titration Solution 4.11 Oxalic Acid (or Sodium Oxalate) Reference Titration Solution [c(1/2 H2C2O4)=0.1 mol/L or c(1/2 Na2C2O4)=0.1 mol/L] 4.12 Potassium Permanganate Reference Titration Solution [c(1/5 KMnO4)=0.1 mol/L] 4.13 Ammonium Iron (II) Sulfate Reference Titration Solution {c[(NH4)2Fe(SO4)2]=0.1 mol/L} 4.14 Cerium Sulphate (or Ammonium Cerium Sulfate) Reference Titration Solution {c[Ce(SO4)2]=0.1 mol/L or c[2(NH4)2SO4•Ce(SO4)2]=0.1 mol/L} 4.15 EDTA Reference Titration Solution 4.16 Zinc Chloride Reference Titration Solution 4.17 Magnesium Chloride (or Magnesium Sulfate) Reference Titration Solution [c(MgCl2)=0.1 mol/L or c(MgSO4)=0.1 mol/L] 4.18 Lead Nitrate Reference Titration Solution {c[Pb(NO3)2]=0.05 mol/L} 4.19 Sodium Chloride Reference Titration Solution [c(NaCl)=0.1 mol/L] 4.20 Sodium Thiocyanate (or Potassium Thiocyanate and Ammonium Thiocyanate) Reference Titration Solution [c(NaSCN)=0.1 mol/L, c(KSCN)=0.1 mol/L and c(NH4SCN)=0.1 mol/L] 4.21 Silver Nitrate Reference Titration Solution [c(AgNO3)=0.1 mol/L] 4.22 Mercuric Nitrate Reference Titration Solution 4.23 Sodium Nitrite Reference Titration Solution 4.24 Perchloric Acid Reference Titration Solution [c(HClO4)=0.1 mol/L] 4.25 Potassium Hydroxide-ethanol Reference Titration Solution [c(KOH)=0.1 mol/L] 4.26 Hydrochloric Acid - Ethanol Reference Titration Solution [c(HCl)=0.5 mol/L] 4.27 Ammonium Iron (III) Sulfate Reference Titration Solution {c[NH4Fe(SO4)2]=0.1 mol/L} Annex A (Normative) Correction Values of Reference Titration Solution Volume under Different Temperatures Annex B (Normative) Determination Method of Burette Capacity Annex C (Informative) Comparison Method of Partial Reference Titration Solutions Annex D (Informative) Expanded Uncertainty Evaluation of Reference Titration Solution Concentration Annex E (Informative) Processing Method of Mercury-contained Waste Liquid Annex F (Informative) Expanded Uncertainty Evaluation of Glass Container Capacity