?u= Wed, 06 Nov 2024 02:31:47 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.1 ?u=/wp-content/uploads/2024/11/cropped-icon-150x150.png ?u= 32 32 ?u=/product/publishers/jis/jis-k-24381990-amendment-12006/ Wed, 06 Nov 2024 02:31:47 +0000 Pyridine Bases (Pyridine Picoline Quinoline)

Published By	Publication Date	Number of Pages
JIS	2006-03-25	5

]]> Pyridine Bases (Pyridine Picoline Quinoline)

Published By	Publication Date	Number of Pages
JIS	2006-03-25	5

]]> ?u=/product/publishers/jis/jis-k-24381990/ Wed, 06 Nov 2024 02:31:47 +0000 Pyridine Bases (Pyridine . Picoline . Quinoline)

Published By	Publication Date	Number of Pages
JIS	1990-02-01	35

]]> Pyridine Bases (Pyridine . Picoline . Quinoline)

Published By	Publication Date	Number of Pages
JIS	1990-02-01	35

]]> ?u=/product/publishers/jis/jis-k-15081982-r1988/ Wed, 06 Nov 2024 02:30:38 +0000 Trichloroethylene

Published By	Publication Date	Number of Pages
JIS	1982-11-01	19

]]> Trichloroethylene

Published By	Publication Date	Number of Pages
JIS	1982-11-01	19

]]> ?u=/product/publishers/iso/iso-59211982/ Tue, 05 Nov 2024 23:35:57 +0000 Chlorofluorohydrocarbons for industrial use — Analysis by gas chromatography — General principles

Published By	Publication Date	Number of Pages
ISO	1982-11	9

]]> Establishes a standard layout for methods for the determination of volatile components and gives general information on these methods. Takes into account the general layout of methods of chemical analysis given in ISO 78/2 and the recommendations given in ISO 2718.

]]> ?u=/product/publishers/iso/iso-59201983/ Tue, 05 Nov 2024 23:35:57 +0000 Chlorofluorinated hydrocarbons — Determination of water content — Gravimetric method

Published By	Publication Date	Number of Pages
ISO	1983-02	9

]]> Covers a method applicable to products having water contents in the range between 2 and 100 mg/kg. Uses a principle consisting in the passage of a vaporized test portion through two weighed absoprtion tubes containing a phosphorus(V) oxide absorption mixture, and calculation of the water content from the increase in mass of the absorption tubes.

]]> ?u=/product/publishers/iso/iso-59181982/ Tue, 05 Nov 2024 23:35:57 +0000 Chlorofluorohydrocarbons for industrial use — Determination of inert gas content — Gas chromatographic method — General principles

Published By	Publication Date	Number of Pages
ISO	1982-11	6

]]> Describes a method applicable to products having inert gas content equal to or greater than 0,005 % (V/V). The principle is based on detection of inert gas from test portion s taken from the liquid or gaseous phase and analysis under such conditions that none of the gases are retained irreversibly by the stationary phase.

]]> ?u=/product/publishers/iso/iso-59171980/ Tue, 05 Nov 2024 23:35:57 +0000 Chlorofluorinated hydrocarbons — Determination of boiling range — Test for product characterization

Published By	Publication Date	Number of Pages
ISO	1980-11	6

]]> Covers a method permitting measurement of temperature differences of 0,5 °C. Should not be considered as an analytical method, but as a test for identification and indication of the purity of a product. Is based on evaporation by boiling of a known volume of the product under test and measurement of the temperatures corresponding to the evaporation of 5 and 95 % of the initial volume of the liquid.

]]> ?u=/product/publishers/iso/iso-59161982/ Tue, 05 Nov 2024 23:35:56 +0000 Methyl chloride for industrial use — Determination of impurities — Gas chromatographic methods

Published By	Publication Date	Number of Pages
ISO	1982-09	8

]]> Specifies a method, the principle of which is based on the analysis of a vaporzed test portion and determination of the contents of impurities. The calibration factors used for this determination are obtained by analysis of external methyl chloride calibration mixtures containing known quantities of the impurities under consederation.

]]> ?u=/product/publishers/iso/iso-57891979/ Tue, 05 Nov 2024 23:34:31 +0000 Fluorinated hydrocarbons for industrial use — Determination of non-volatile residue

Published By	Publication Date	Number of Pages
ISO	1979-07	4

]]> Specifies a method, the principle of which is based on evaporation of a test portion under specified conditions, using special apparatus, and weighing of the residue after evaporation. Details the procedure and provides information on the expression of results and the data to be included in the test report.

]]> ?u=/product/publishers/iso/iso-57871979/ Tue, 05 Nov 2024 23:34:31 +0000 Methyl chloride and ethyl chloride for industrial use — Methods of test

Published By	Publication Date	Number of Pages
ISO	1979-07	8

]]> Specifies procedures for determining the acidity , the residue on evaporation and the water content by the Karl Fischer method. The acidity test is applicable to products having acidities, expressed as hydrochloric acid, between 1 and 50 mg/kg. For determination of ressidue on evaporation the method specified in ISO 2210 is recommended which is applicable to products leaving a residue on evaporation equal to or greater than 5 mg/kg. The method for determination of water content is applicable to products having water contents between 5 and 200 mg/kg.

]]>