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GB/T 648-2011: Chemical reagent -- Potassium thiocyanate
Status: Valid GB/T 648: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 648-2011 | English | 209 |
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Chemical reagent -- Potassium thiocyanate
| Valid |
GB/T 648-2011
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| GB/T 648-1993 | English | 199 |
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Chemical reagents. potassium thiocyanate
| Obsolete |
GB/T 648-1993
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PDF similar to GB/T 648-2011
Basic data | Standard ID | GB/T 648-2011 (GB/T648-2011) | | Description (Translated English) | Chemical reagent -- Potassium thiocyanate | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G62 | | Classification of International Standard | 71.040.30 | | Word Count Estimation | 9,993 | | Date of Issue | 2011-05-12 | | Date of Implementation | 2011-12-01 | | Older Standard (superseded by this standard) | GB/T 648-1993 | | Quoted Standard | GB/T 601; GB/T 602; GB/T 603; GB/T 6682; GB/T 9723-2007; GB/T 9724; GB/T 9728; GB/T 9729; GB/T 9738; GB/T 9739; GB 15258; GB 15346; HG/T 3484; HG/T 3921 | | Adopted Standard | ISO 6353-3-1987, NEQ | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 6 of 2011 | | 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 chemical properties of potassium thiocyanate reagent, specifications, testing, inspection and marking and packaging rules. This standard applies to chemical reagent potassium thiocyanate test. | GB/T 648-2011: Chemical reagent -- Potassium thiocyanate---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.
Chemical reagent. Potassium thiocyanate
ICS 71.040.30
G62
National Standards of People's Republic of China
Replacing GB/T 648-1993
Chemical reagents potassium thiocyanate
(ISO 6353-3. 1987, Reagentsforchemicalanalysis-
Part 3. Specifications-Secondseries, NEQ)
Issued on. 2011-05-12
2011-12-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard and ISO 6353-3. 1987 "Reagents for chemical analysis - Part 3. Specification 2 of the series" The R86 "potassium thiocyanate" unanimous
The degree of non-equivalent.
This standard replaces GB/T 648-1993 "chemical reagents potassium thiocyanate," compared with the GB/T 648-1993 main changes are as follows.
--- Clarity test specifications by a "qualified" to "2", "3", "5" (1993 version 3.3, Chapter 4 of this edition);
--- Chemical reagents common method of measuring water-insoluble substance use (the 1993 version 4.3.2, this version 5.5);
--- Sulfate adjusted analytical measurement, chemically pure sample size (1993 version 4.3.5, this version 5.8);
--- Modify the packaging and logo (the 1993 edition, Chapter 6, Section 7 of this edition).
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee Chemistry Chemicals Branch (SAC/TC63/SC3) centralized.
This standard was drafted. Guangzhou Chemical Reagent Factory.
The main drafters of this standard. Yu Xiaoqi, Fuqiong Lian, Liu Chao Yuan.
This standard replaces the standards previously issued as follows.
--- GB/T 648-1965, GB/T 648-1978, GB/T 648-1993.
Chemical reagents potassium thiocyanate
Warning. some of the test procedure specified in this standard can lead to dangerous situations, the user has the responsibility to take appropriate safety and health practices.
Molecular formula. KSCN
Molecular Weight. 97.18 (according to 2007 international relative atomic mass)
1 Scope
This standard specifies the chemical reagent potassium thiocyanate traits, specifications, testing, packaging and inspection rules and signs.
This standard applies to chemical reagents potassium thiocyanate test.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
Preparation of GB/T 601 chemical reagent standard titration solution
GB/T 602 Determination of impurities in chemical reagents prepared standard solution (GB/T 602-2002, ISO 6353-1. 1982, NEQ) with
GB/T 603 chemical reagent test method Preparations of articles (GB/T 603-2002, ISO 6353-1 with. 1982,
NEQ)
GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)
GB/T 9723-2007 Chemicals flame atomic absorption spectrometry General
GB/T 9724 General rule for determination of pH chemical reagent (GB/T 9724-2007, ISO 6353-1. 1982, NEQ)
GB/T 9728 General method for determination of chemical reagents sulfate (GB/T 9728-2007, ISO 6353-1. 1982, NEQ)
GB/T 9729 General method for determination of chloride Chemicals (GB/T 9729-2007, ISO 6353-1. 1982, NEQ)
GB/T 9738 Determination of water insoluble chemical reagent - General method (GB/T 9738-2008, ISO 6353-1. 1982, NEQ)
GB/T 9739 General method for determination of iron chemical reagents (GB/T 9739-2006, ISO 6353-1. 1982, NEQ)
GB 15258 rules for preparation of chemical safety labels
GB 15346 chemical reagent packaging and marking
HG/T 3484 standard chemical reagents glass emulsion and clarity standards
HG/T 3921 Chemicals sampling and acceptance rules
3 Characters
This reagent is a colorless crystal, easy deliquescence, soluble in water and ethanol.
4 Specification
Potassium thiocyanate as shown in Table 1.
Table 1
Name pure class pure analytical chemistry
Content (KSCN), w /% ≥99.0 ≥98.5 ≥98.0
pH value (50g/L, 25 ℃) 5.3 ~ 8.5 5.3 ~ 8.5 5.3 ~ 8.5
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