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GB/T 13025.9-2012 English PDF

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Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 13025.9-2012 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.

US$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 13025.9-2012: General test method in salt industry -- Determination of lead
Status: Valid

GB/T 13025.9: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 13025.9-2012	279	Add to Cart	3 days	General test method in salt industry -- Determination of lead	Valid
GB/T 13025.9-1991	199	Add to Cart	2 days	General test method in salt industry--Determination of lead ion (photometry)	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 13025.9-2012 (GB/T13025.9-2012)
Description (Translated English): General test method in salt industry -- Determination of lead
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: X35
Classification of International Standard: 71.060.50
Word Count Estimation: 12,148
Older Standard (superseded by this standard): GB/T 13025.9-1991; GB/T 18962-2003
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 determination of lead salt products method. This section applies to the determination of lead salt products.

GB/T 13025.9-2012: General test method in salt industry -- Determination of lead

---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 lead ICS 71.060.50 X35 National Standards of People's Republic of China Replace GB/T 13025.9-1991, GB/T 18962-2003 General test methods for salt industry - Determination of lead 2012-06-29 release 2012-12-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China China National Standardization Management Committee released

Foreword

This part is one of the series of standards for general testing methods for the salt industry. This series of standards is currently divided into the following 13 parts. If necessary, other tests The methodological criteria will be supplemented by follow-up work. GB/T 13025.1 General test methods for salt industry - Determination of particle size; GB/T 13025.2 General test methods for salt industry - Determination of whiteness; GB/T 13025.3 General test methods for salt industry - Determination of moisture; GB/T 13025.4 General test methods for salt industry - Determination of water insoluble matter; GB/T 13025.5 General test methods for salt industry - Determination of chloride ion; GB/T 13025.6 General test methods for salt industry - Determination of calcium and magnesium; GB/T 13025.7 General test methods for salt industry - Determination of iodine; GB/T 13025.8 General test methods for salt industry - Determination of sulfate; GB/T 13025.9 General test methods for salt industry - Determination of lead; GB/T 13025.10 General test methods for salt industry - Determination of ferrous cyanide; GB/T 13025.11 General test methods for salt industry - Determination of fluorine; GB/T 13025.12 General test methods for salt industry - Determination of barium; General test methods for salt industry - Determination of arsenic GB/T 13025.13. This part is part 9 of GB/T 13025. This part is based on the rules of GB/T 1.1-2009. This part of the GB/T 13025.9-1991 "General test method for salt industry lead ion determination (photometric method)" and GB/T 18962-2003 "General test methods for salt industry - Determination of lead ions (atomic absorption spectrophotometric method)". This part with GB/T 13025.9-1991 compared to the editorial changes in the main changes are as follows. --- integrated flame atomic absorption spectrophotometry; - increased hydride atomic fluorescence spectrophotometry; Increased Hydride Atomic Absorption Spectrophotometry. This part of the China Light Industry Federation, the National Salt Standardization Technical Committee. This part of the drafting unit. National Hai Lake Salt Standardization Center, Qinghai Province Salt Industry Co., Ltd. This part of the main drafters. Zhao Yi, Yu Xiuling, Wen Huaike. This part of the previous version of the release of the situation. --- GB/T 13025.9-1991; --- GB/T 18962-2003. General test methods for salt industry - Determination of lead

1 Scope

This part of GB/T 13025 specifies the determination of lead in salt products. This part applies to the determination of lead in salt products.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, the only dated edition applies , The latest version (including all amendments) applies to this document. Analysis of laboratory water specifications and test methods GB/T 6682-2008

3 Hydride Atomic Fluorescence Spectrophotometry

3.1 Principles Under acidic conditions, the lead in the sample reacts with sodium borohydride to form lead volatile hydride (PbH4), which is carried by the carrier gas into quartz atomization Heat decomposition into atomic lead, in the special lead hollow cathode lamp irradiation, the ground state lead atoms are excited to high energy state, in the deactivation back to the base State, the emission of the characteristic wavelength of fluorescence, the fluorescence intensity in the fixed conditions and lead content is proportional to, compared with the standard series of quantitative. 3.2 Reagents 3.2.1 Reagent specifications Unless otherwise stated, only the reagents identified as analytical reagents and the secondary water specified in GB/T 6682-2008 are used in the analysis. 3.2.2 Sodium borohydride solution (15g/L) 3.00 g of sodium borohydride and 1.00 g of sodium hydroxide were weighed and dissolved in.200 mL of water. 3.2.3 Hydrochloric acid solution (1 1) Measure 250 mL of concentrated hydrochloric acid and dissolve in 250 mL of water. 3.2.4 Potassium ferricyanide solution (100g/L) Weigh 10 g of potassium ferricyanide, add water and dilute to 100 mL. 3.2.5 oxalic acid solution (20g/L) Weigh 2.0 g of oxalic acid, add water and dilute to 100 mL. 3.2.6 Hydrochloric acid solution (2 98) A solution of 10.0 mL of concentrated hydrochloric acid was dissolved in 490 mL of water. This solution is carrier liquid. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 13025.9-2012_English be delivered?

Answer: Upon your order, we will start to translate GB/T 13025.9-2012_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 13025.9-2012_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 13025.9-2012_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 13025.9-2012?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 13025.9-2012 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.