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GB/T 23349-2020 English PDF

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Q: Should I purchase the latest version GB/T 23349-2020?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 23349-2020 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 23349-2020: Determination of arsenic, cadmium, chromium, lead and mercury contents for fertilizers
Status: Valid

GB/T 23349: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23349-2020	279	Add to Cart	3 days	Determination of arsenic, cadmium, chromium, lead and mercury contents for fertilizers	Valid
GB/T 23349-2009	639	Add to Cart	3 days	Ecological index of arsenic, cadmium, lead, chromium and mercury for fertilizers	Obsolete

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Basic data

Standard ID: GB/T 23349-2020 (GB/T23349-2020)
Description (Translated English): Determination of arsenic, cadmium, chromium, lead and mercury contents for fertilizers
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G20
Classification of International Standard: 65.080
Word Count Estimation: 15,191
Date of Issue: 2020-11-19
Date of Implementation: 2021-06-01
Older Standard (superseded by this standard): GB/T 23349-2009
Quoted Standard: HG/T 2843; NY/T 1978-2010
Regulation (derived from): National Standard Announcement No. 26 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies methods for determining the content of arsenic, cadmium, chromium, lead and mercury in fertilizers. This standard applies to the determination of arsenic, cadmium, chromium, lead and mercury content in fertilizers. The detection limit of this standard method is: arsenic: silver diethyldithiocarbamate spectrophotometry is 0.8 mg/kg, atomic fluorescence spectrometry is 0.1��g/kg, cadmium is 0.4 mg/kg, and chromium is 0.1 mg/ kg, lead is 1 mg/kg, mercury: hydride generation-atomic absorption spectrophotometry is 0.1 mg/kg, atomic fluorescence spectrometry is 0.05��g/kg.

GB/T 23349-2020: Determination of arsenic, cadmium, chromium, lead and mercury contents for fertilizers

---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.
Determination of arsenic, cadmium, chromium, lead and mercury contents for fertilizers ICS 65.080 G20 National Standards of People's Republic of China Replace GB/T 23349-2009 Determination of arsenic, cadmium, chromium, lead, mercury content in fertilizer 2020-11-19 released 2021-06-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 23349-2009 "Ecological indicators of arsenic, cadmium, lead, chromium, and mercury in fertilizers". Compared with GB/T 23349-2009, In addition to editorial changes, the main technical changes are as follows. ---The detection limit of the method has been increased (see Chapter 1); ---Deleted limit requirements and inspection rules (see Chapter 3 and Chapter 5 of the.2009 edition); ---The atomic fluorescence spectrometry method of arsenic and mercury has been added (see 3.2.2 and 3.6.2). This standard was proposed by the China Petroleum and Chemical Industry Federation. This standard is under the jurisdiction of the National Standardization Technical Committee for Fertilizers and Soil Conditioners (SAC/TC105). Drafting organizations of this standard. Shanghai Research Institute of Chemical Industry Co., Ltd., Guizhou Batian Ecological Engineering Co., Ltd., China-Arab Fertilizer Co., Ltd. The company, Shanghai Chemical Industry Institute Testing Co., Ltd., Shandong Product Quality Inspection Research Institute. The main drafters of this standard. Zhang Minghong, Tan Zhanao, Wang Lianjun, Wang Kaiyue, Feng Junqiang, Zhang Wei, Chen Hongjun, Yang Xu, Yin Jiong, Zhang Juan. The previous versions of the standard replaced by this standard are as follows. ---GB/T 23349-2009. Determination of arsenic, cadmium, chromium, lead, mercury content in fertilizer Warning---The hydrochloric acid used in this standard is corrosive, and nitric acid is corrosive and oxidizing. Some processes in the test method may be Lead to dangerous situations, the operator should take appropriate safety and protective measures. This standard does not point out all possible safety issues. user It is the responsibility to take appropriate safety and health measures and to ensure compliance with the conditions stipulated by relevant national laws and regulations.

1 Scope

This standard specifies methods for determining the content of arsenic, cadmium, chromium, lead and mercury in fertilizers. This standard applies to the determination of arsenic, cadmium, chromium, lead and mercury content in fertilizers. The detection limit of this standard method is. arsenic. 0.8mg/kg for silver diethyldithiocarbamate spectrophotometry, and atomic fluorescence spectrometry for 0.1μg/kg, cadmium is 0.4mg/kg, chromium is 0.1mg/kg, lead is 1mg/kg, mercury. hydride generation-atomic absorption spectrophotometry is 0.1mg/kg, 0.05μg/kg by atomic fluorescence spectrometry.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this document. For undated references, the latest version (including all amendments) applies to this document. HG/T 2843 Commonly used standard titration solution, standard solution, reagent solution and indicator solution for chemical analysis of fertilizer products NY/T 1978-2010 Fertilizer determination of mercury, arsenic, cadmium, lead, and chromium content

3 Test method

The preparation of reagents, water and solutions used in this standard shall be in accordance with HG/T 2843 when specifications and preparation methods are not indicated. 3.1 Preparation of sample solution 3.1.1 Sample preparation Prepare according to the corresponding product standard. 3.1.2 Reagents and materials 3.1.2.1 Hydrochloric acid. 3.1.2.2 Nitric acid. 3.1.2.3 Hydrochloric acid solution. 15.Add 1 volume of hydrochloric acid to 5 volumes of water. 3.1.3 Instruments 3.1.3.1 Generally laboratory equipment. 3.1.3.2 Electric heating plate, the power is 1.8kW~2.4kW. 3.1.4 Preparation of sample solution Make parallel determinations of two samples. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 23349-2020_English be delivered?

Answer: Upon your order, we will start to translate GB/T 23349-2020_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 23349-2020_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 23349-2020_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 23349-2020?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 23349-2020 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.