ASTM E1498 - 92(2012) - Standard Guide for Conducting Sexual Reproduction Tests with Seaweeds
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ASTM E1498 - 92(2012)

Standard Guide for Conducting Sexual Reproduction Tests with Seaweeds

Status : Current   Published : January 2012

Format
PDF

Format
HARDCOPY



1.1 This guide covers procedures for obtaining laboratory data concerning the adverse effects of a test material added to dilution water on sexual reproduction by seaweeds. The exposure duration is species dependent and is followed by a period of development to allow the evidence of sexual reproduction to appear. There is no exposure to toxicants during the development period. This restricts the tests primarily to the events surrounding egg fertilization, and it minimizes any timelag effects on development that might interfere with correct enumeration of the number of sexual events that occurred. These procedures will probably be useful for conducting sexual reproduction toxicity tests with a variety of species of seaweeds, although modifications might be necessary.

1.2 Other modifications of these procedures might be justified by special needs or circumstances. Although using appropriate procedures is more important than following prescribed procedures, the results of tests conducted using unusual procedures are not likely to be comparable to those of many other tests. Comparison of the results obtained using modified and unmodified versions of these procedures might provide useful information concerning new concepts and procedures for conducting sexual reproduction tests with seaweeds.

1.3 These procedures are applicable to most chemicals, either individually or in formulations, commercial products, and known mixtures or whole effluents, as well as for use in testing surface waters. With appropriate modifications, these procedures can be used to study the effects of temperature, dissolved oxygen, pH, and such materials as leachates, oils, particulate matter, and sediments.

1.4 The values stated in SI units are to be regarded as the standard.

1.5 This guide is arranged as follows:

[This table has been removed.]


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. For specific hazards statements, see 6.4 and Section 7.




Standard NumberASTM E1498 - 92(2012)
TitleStandard Guide for Conducting Sexual Reproduction Tests with Seaweeds
StatusCurrent
Publication Date12 January 2012
Descriptors Algae, Champia, Microalgae, Plants, Seaweed, Toxicity test
ICS07.100.20
65.020.20
PublisherASTM
FormatA4
DeliveryYes
Pages12
File Size231.9 KB
Price£44.00


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