ASTM D7126 - 15 - Standard Test Method for On-Line Colorimetric Measurement of Silica

ASTM D7126 - 15

Standard Test Method for On-Line Colorimetric Measurement of Silica

Status : Current   Published : July 2015

Format
PDF

Format
HARDCOPY



1.1 This test method covers the on-line determination of soluble silica in water by colorimetric analysis using the molybdenum blue method, also known as the heteropoly blue method.

1.2 This test method is applicable for silica determination in water with silica concentrations within 0.5–5000 ppb (μg/L).

1.3 This test method covers the determination of soluble silica SiO 2 (silicon dioxide) or silicates in water. Soluble silica compounds are considered molybdate reactive silica. This test method does not cover the determination of colloidal or polymeric silica, which is considered non-molybdate reactive silica.

1.4 This test method does not cover the laboratory or grab sample measurement of silica in water. Refer to Test Method D859.

1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.6  This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.




Standard NumberASTM D7126 - 15
TitleStandard Test Method for On-Line Colorimetric Measurement of Silica
StatusCurrent
Publication Date15 July 2015
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Descriptors Colorimetric, On-line, Process measurement, Silica
ICS13.060.50
PublisherASTM
FormatA4
DeliveryYes
Pages3
File Size85 KB
Price£36.00


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