|
US$189.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 669-2023: Chemical reagent - Strontium nitrate
Status: Valid GB/T 669: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 669-2023 | English | 189 |
Add to Cart
|
3 days [Need to translate]
|
Chemical reagent - Strontium nitrate
| Valid |
GB/T 669-2023
|
| GB/T 669-1994 | English | 169 |
Add to Cart
|
2 days [Need to translate]
|
Chemical reagent. Strontium nitrate
| Obsolete |
GB/T 669-1994
|
| GB 669-1977 | English | 199 |
Add to Cart
|
2 days [Need to translate]
|
Chemical reagents--Strontium nitrate
| Obsolete |
GB 669-1977
|
PDF similar to GB/T 669-2023
Basic data | Standard ID | GB/T 669-2023 (GB/T669-2023) | | Description (Translated English) | Chemical reagent - Strontium nitrate | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G62 | | Classification of International Standard | 71.040.30 | | Word Count Estimation | 10,115 | | Date of Issue | 2023-08-06 | | Date of Implementation | 2024-03-01 | | Older Standard (superseded by this standard) | GB/T 669-1994 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 669-2023: Chemical reagent - Strontium nitrate---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.
ICS 71.040.30
CCSG62
National Standards of People's Republic of China
Replace GB/T 669-1994
Chemical reagent strontium nitrate
Published on 2023-08-06
2024-03-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document replaces GB/T 669-1994 "Chemical Reagent Strontium Nitrate". Compared with GB/T 669-1994, except for structural adjustment and editing
In addition to sexual changes, the main technical changes are as follows.
---Added technical requirements and measurement methods for pH value (see Chapter 5, 6.3);
---The technical requirements for the clarity test have been changed, from "qualified" to "≤No. 2" and "≤No. 4" (see Chapter 5,.1994 edition
3.2);
---The technical requirements for sodium have been changed, and the technical requirements for analytical purity have been adjusted from "≤0.03%" to "≤0.02%" (see Chapter 5,.1994 edition
3.2);
---The technical requirements for potassium have been changed. The technical requirements for analytical purity have been adjusted from "≤0.02%" to "≤0.01%", and the technical requirements for chemical purity have been adjusted from "≤0.02%" to "≤0.01%".
"≤0.05%" is adjusted to "≤0.02%" (see Chapter 5, 3.2 of the.1994 edition);
---The technical requirements for calcium have been changed. The technical requirements for analytical purity have been adjusted from "≤0.03%" to "≤0.01%", and the technical requirements for chemical purity have been adjusted from "≤0.03%" to "≤0.01%".
"≤0.05%" is adjusted to "≤0.02%" (see Chapter 5, 3.2 of the.1994 edition);
---The determination method of strontium nitrate has been changed (see 6.2, 4.1 of the.1994 edition);
---Added the determination method of barium by inductively coupled plasma atomic emission spectrometry (see 6.14);
--- Added the sodium sulfide-glycerol colorimetric method for determination of heavy metals (see 6.15);
---Changed the inspection rules (see Chapter 7, Chapter 5 of the.1994 edition);
---Changed the packaging and logo (see Chapter 8, Chapter 6 of the.1994 edition);
---Deleted the technical requirements and determination methods of free acid (see 3.2 and 4.2.4 of the.1994 edition).
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is proposed by China Petroleum and Chemical Industry Federation.
This document is under the jurisdiction of the Chemical Reagents Sub-Technical Committee of the National Chemical Standardization Technical Committee (SAC/TC63/SC3).
This document was drafted by. Xilong Science Co., Ltd., Beijing Institute of Chemical Reagents Co., Ltd.
The main drafters of this document. Huang Pingqing, Luo Yuan, Chen Yixuan, Wang Yuhua, Zhao Jifei, Han Baoying, She Lajiao, Lin Xujun, Zhou Yubin, Wang Lianwang,
Meng Xiandong.
This document was first published in 1965, revised for the first time in 1977, revised for the second time in.1994, and this is the third revision.
Chemical reagent strontium nitrate
Warning. Some test procedures specified in this document may lead to hazardous situations, and the user is responsible for taking appropriate safety and health measures.
1 Scope
This document specifies the properties, technical requirements, test methods, inspection rules, packaging and marking of the chemical reagent strontium nitrate.
This document applies to the inspection of the chemical reagent strontium nitrate.
Note. The molecular formula of the chemical reagent strontium nitrate is Sr(NO3)2, the relative molecular mass is 211.63 (according to the 2022 international relative atomic mass), and the CAS number is
10042-76-9.
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document.
GB/T 601 Preparation of chemical reagent standard titration solution
GB/T 602 Preparation of standard solutions for determination of impurities in chemical reagents
GB/T 603 Preparation of preparations and products used in chemical reagent test methods
GB/T 6682 Specifications and test methods for water used in analytical laboratories
GB/T 9723-2007 General principles for flame atomic absorption spectrometry of chemical reagents
GB/T 9724 General principles for determination of pH value of chemical reagents
GB/T 9728 General method for determination of chemical reagent sulfate
GB/T 9729 General method for determination of chemical reagent chloride
GB/T 9735-2008 General method for determination of heavy metals in chemical reagents
GB/T 9738 General method for determination of water-insoluble matter in chemical reagents
GB/T 9739 General method for determination of iron with chemical reagents
GB 15258 Regulations on Preparing Chemical Safety Labels
GB 15346 Chemical reagent packaging and marking
GB/T 23942-2009 General principles for inductively coupled plasma atomic emission spectrometry of chemical reagents
HG/T 3484-1999 Chemical reagent standard glass emulsion and clarity standard
HG/T 3921 Chemical reagent sampling and acceptance rules
3 Terms and definitions
There are no terms or definitions to be defined in this document.
4 traits
Strontium nitrate is colorless crystal or white powder, easily soluble in water, slightly soluble in alcohol or ketone, and insoluble in ethanol (anhydrous ethanol).
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 669-2023_English be delivered?Answer: Upon your order, we will start to translate GB/T 669-2023_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 669-2023_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 669-2023_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+ countriesQuestion 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 [email protected]. 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 669-2023?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 669-2023 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.
|