ASTM D859 PDF

Want this as a site license? Changes from the previous issue A redline edition is available for this document, with all changes visible. Ask Document Center Inc. Scope 1. It is applicable to most waters, but some waters may require filtration and dilution to remove interferences from color and turbidity.

Author:Grole Nikozragore
Country:China
Language:English (Spanish)
Genre:Career
Published (Last):4 February 2014
Pages:255
PDF File Size:4.11 Mb
ePub File Size:12.91 Mb
ISBN:996-2-21596-364-6
Downloads:52871
Price:Free* [*Free Regsitration Required]
Uploader:Musar



More D Scope 1. It is applicable to most waters, but some waters may require filtration and dilution to remove interferences from color and turbidity. Due to the complexity of silica chemistry, the form of silica measured is defined by the analytical method as molybdate-reactive silica.

Those forms of silica that are molybdate-reactive include dissolved simple silicates, monomeric silica and silicic acid, and an undetermined fraction of polymeric silica. It is particularly applicable to treated industrial waters. It may be applied to natural waters and wastewaters following filtration or dilution, or both.

For seawater or brines, this test method is applicable only if matched matrix standards or standard addition techniques are employed. No other units of measurement are included in this standard. 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.

Note 1—For many natural waters, a measurement of molybdate-reactive silica by this test method provides a close approximation of total silica, and, in practice, the colorimetric method is frequently substituted for other more time-consuming techniques. This is acceptable when, as frequently occurs, the molybdate-reactive silica is in the milligram per litre concentration range while the nonmolybdate-reactive silica, if present at all, is in the microgram per litre concentration range.

Refer to Appendix X1 for historical information.

ISO 9308-1 FREE PDF

ASTM D859 PDF

More E If an underlay material is used to assess the effect of a specific underlay in combination with a specific floor covering, such a variation in procedure must be noted in the report. Different results are possible if the same material is tested or used in any other plane. In cases of disagreement arising from differences in values reported by the purchaser and the seller when using this method for acceptance testing, the statistical bias, if any, between the laboratory of the purchaser and the laboratory of the seller shall be determined with each comparison being based on testing specimens randomly drawn from one sample of material of the type being evaluated. Consumer Product Safety Commission4 see also 1.

ANTONIN ARTAUD EL OMBLIGO DE LOS LIMBOS PDF

More D Scope 1. It is applicable to most waters, but some waters may require filtration and dilution to remove interferences from color and turbidity. Due to the complexity of silica chemistry, the form of silica measured is defined by the analytical method as molybdate-reactive silica.

Related Articles