Name: ASTM D 4148 : 1982 : R2012
Brand: ASTM
Price: 66.00 USD

ASTM D 4148 : 1982 : R2012

Withdrawn

Standard Test Method for Analysis of Phytoplankton in Surface Water by the Sedgwick-Rafter Method (Withdrawn 2020)

Available format(s)

Hardcopy , PDF

Withdrawn date

05-13-2020

Language(s)

English

Published date

09-01-2012

Publisher

American Society for Testing and Materials

CONTAINED IN VOL. 11.06, 2017 Defines determining the density and taxonomic classification of phytoplankton.

1.1This test method covers determining the density and taxonomic classification of phytoplankton. It is applicable both to relatively sparse or dense phytoplankton concentrations, provided the suspended-sediment concentration is low. The Sedgwick Rafter (S-R) method requires less costly apparatus than does the inverted microscope method but gives less accurate results. The inherent inaccuracy in the Sedgwick-Rafter method is due to the design of the counting chamber and cannot be circumvented by a different choice of optics. For this reason, the S-R method is limited to the use of objective lenses having a working distance of approximately 1.6 mm or more. With 10× oculars the maximum overall magnification is approximately 250×. High concentrations of suspended sediment can obscure the algal cells, and thus cause interference.

1.2This test method is applicable to both freshwater and marine samples.

1.3This standard does not purport to address all of the safety problems, 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. For specific precautionary information see Section 8.

Committee	D 19
DocumentType	Test Method
Pages	4
ProductNote	Reconfirmed 2012
PublisherName	American Society for Testing and Materials
Status	Withdrawn
Supersedes	ASTM D 4148 : 1982 : R2004

ASTM D 3370 : 1995 : REV A : R2003 : EDT 1	Standard Practices for Sampling Water from Closed Conduits
ASTM D 1129 : 2013 : REDLINE	Standard Terminology Relating to Water
ASTM D 1129 : 2003	Standard Terminology Relating to Water
ASTM D 1129 : 2013	Standard Terminology Relating to Water
ASTM D 1193 : 1977 : R1983 : EDT 1	Standard Specification for Reagent Water
ASTM D 4149 : 1982 : R2004	Standard Classification for Sampling Phytoplankton in Surface Waters
ASTM D 1129 : 2006	Standard Terminology Relating to Water
ASTM D 3370 : 2010	Standard Practices for Sampling Water from Closed Conduits
ASTM D 3370 : 2008	Standard Practices for Sampling Water from Closed Conduits
ASTM D 1129 : 1999 : REV A	Standard Terminology Relating to Water
ASTM D 1129 : 2006 : REV A	Standard Terminology Relating to Water
ASTM D 1193 : 2006 : R2011	Standard Specification for Reagent Water
ASTM D 1129 : 2003 : REV A	Standard Terminology Relating to Water
ASTM D 1129 : 2002	Standard Terminology Relating to Water
ASTM D 4149 : 1982 : R2012	Standard Classification for Sampling Phytoplankton in Surface Waters (Withdrawn 2020)
ASTM D 1193 : 1991	Standard Specification for Reagent Water
ASTM D 4149 : 1982 : R1998	Standard Classification for Sampling Phytoplankton in Surface Waters
ASTM D 1129 : 2004	Standard Terminology Relating to Water
ASTM D 3370 : 2018	Standard Practices for Sampling Water from Flowing Process Streams
ASTM D 1129 : 2002 : REV A	Standard Terminology Relating to Water
ASTM D 3370 : 1976	Standard Practices for Sampling Water
ASTM D 1193 : 1970	Standard Specification For Reagent Water
ASTM D 1193 : 2006	Standard Specification for Reagent Water
ASTM D 3370 : 1995 : REV A : R1999 : EDT 1	Standard Practices for Sampling Water from Closed Conduits
ASTM D 1193 : 1999	Standard Specification for Reagent Water
ASTM D 1129 : 2010	Standard Terminology Relating to Water
ASTM D 3370 : 2007	Standard Practices for Sampling Water from Closed Conduits
ASTM D 1129 : 2006 : REV A : EDT 1	Standard Terminology Relating to Water
ASTM D 1129 : 2001	Standard Terminology Relating to Water
ASTM D 1129 : 2004 : EDT 1	Standard Terminology Relating to Water
ASTM D 1193 : 2006 : R2018	Standard Specification for Reagent Water