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GB/T 13025.6-2012 English PDF

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US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 13025.6-2012: General test method in salt industry -- Determination of calcium and magnesium
Status: Valid

GB/T 13025.6: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 13025.6-2012	189	Add to Cart	3 days	General test method in salt industry -- Determination of calcium and magnesium	Valid
GB/T 13025.6-1991	239	Add to Cart	2 days	General test method in salt industry--Determination of calcium and magnesium ions	Obsolete

Similar standards

GB/T 13025.12 GB/T 13025.10 GB/T 13025.8 GB/T 13025.13 GB/T 13025.3 GB/T 13025.1

Basic data

Standard ID: GB/T 13025.6-2012 (GB/T13025.6-2012)
Description (Translated English): General test method in salt industry -- Determination of calcium and magnesium
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: X35
Classification of International Standard: 71.060.50
Word Count Estimation: 8,815
Older Standard (superseded by this standard): GB/T 13025.6-1991
Quoted Standard: GB/T 6682-2008
Regulation (derived from): National Standards Bulletin No. 13 of 2012
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 salt products and salt chemical products Determination of calcium and magnesium. This section Chapter 3 and Chapter 4 Capacity Act applies to salt products and salt chemical products and raw materials Determination of calcium a

GB/T 13025.6-2012: General test method in salt industry -- Determination of calcium and magnesium

---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.
General test method in salt industry.Determination of calcium and magnesium ICS 71.060.50 X35 National Standards of People's Republic of China Replacing GB/T 13025.6-1991 Common test methods for industrial salt Determination of calcium and magnesium Issued on. 2012-06-29 2012-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This section of the standard method of series universal testing in salt industry, which is currently divided into the following series of standards section 13 and, if necessary, other test Standard test method will complement the development of the follow-up work. --- GB/T 13025.1 General test method in salt industry Determination of particle size; --- Determination of GB/T 13025.2 General test method in salt industry whiteness; --- GB/T 13025.3 Determination of Salt Industry General Test Method for Water; --- Determination of GB/T 13025.4 General test method in salt industry of insoluble matter; --- GB/T 13025.5 Determination of Salt Industry General test methods of chloride ion; --- GB/T 13025.6 Determination of common salt industry test methods for calcium and magnesium; --- GB/T 13025.7 Determination of General test method in salt industry iodine; --- Determination of GB/T 13025.8 General test method in salt industry sulfate radical; --- Determination of GB/T 13025.9 common salt industry test methods for lead; --- Determination of GB/T 13025.10 General test method in salt industry ferrocyanide roots; --- GB/T 13025.11 General test method in salt industry - Determination of Fluoride; --- Determination of GB/T 13025.12 General test method in salt industry barium; --- GB/T 13025.13 Determination of common salt industry test methods for arsenic. This section GB/T 13025 Part 6. This section based on GB/T 1.1-2009 of rules for the preparation. This Part replaces GB/T 13025.6-1991 "Universal salt industry test methods for the determination of calcium and magnesium ions," and this section GB/T 13025.6-1991 Except as compared to editorial changes, the major technical changes are as follows. --- Cancel the spectrophotometric method; --- Increasing the atomic absorption analysis method. This part made by the China Light Industry Federation, the National Salt Industry Standardization Technical Committee centralized. This section drafted by. National Center for Standardization sea lake salt, salt Henan Province Product Quality Supervision and Inspection Station. The main drafters of this section. Tong Yun Kun, Xu Suling, in Xiuling, Yuan Hui Jie. This section previously issued as follows. --- GB/T 13025.6-1991. Common test methods for industrial salt Determination of calcium and magnesium

1 Scope

GB/T 13025 provisions of this part of the determination of salt products and salt chemical products of calcium and magnesium. Part 3 of Chapter 4 Capacity Act applies to product and salts and determination of calcium and magnesium salt chemical products raw materials; Chapter 5 atoms Absorption spectrophotometry applied to micro calcium salt products, the determination of magnesium by atomic absorption spectrophotometry detection limit of. calcium 0.05mg/kg, Magnesium 0.05mg/kg.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Laboratory use specifications and test methods GB/T 6682-2008 Analysis 3 Determination of calcium (volumetric method) 3.1 Principle Sample solution was made basic (pH≈12), with disodium edetate (EDTA) titration standard solution titration, determination of calcium content. 3.2 Reagents 3.2.1 Reagents Specifications Unless otherwise indicated in the analysis using only confirm three analytical grade reagents and water GB/T 6682-2008 stipulated. 3.2.2 hydrochloric acid solution (4mol/L) Measure 20mL of hydrochloric acid was added 40mL of water, and mix. 3.2.3 sodium hydroxide solution (2mol/L) Saturated solution of sodium hydroxide (100g sodium hydroxide plus 100mL water) prepared in advance after placing clarified supernatant take 52mL, Diluted with water to 500mL. 3.2.4 ammonia - ammonium chloride buffer solution (pH≈10) 20g ammonium chloride was weighed, dissolved in water, was added 100mL aqueous ammonia (25%), diluted with water to 1L. 3.2.5 standard solution of zinc oxide Weigh 1.63g ignition at 800 ℃ to constant weight of zinc oxide reference reagents, weighing accuracy of 0.0001g, placed in 150mL beaker, with less The amount of water wetting, dropping hydrochloric acid solution (3.2.2) until completely dissolved and transferred to 1000mL volumetric flask, diluted with water to the mark. Concentration of standard solution of zinc oxide according to formula (1). ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 13025.6-2012_English be delivered?

Answer: Upon your order, we will start to translate GB/T 13025.6-2012_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 13025.6-2012_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 13025.6-2012_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. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 13025.6-2012?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 13025.6-2012 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.