FORMAT
BOOKS
PACKAGES
EDITION
PUBLISHER
CONTENT TYPE
Act
Admin Code
Announcements
Bill
Book
CADD File
CAN
CEU
Charter
Checklist
City Code
Code
Commentary
Comprehensive Plan
Conference Paper
County Code
Course
DHS Documents
Document
Errata
Executive Regulation
Federal Guideline
Firm Content
Guideline
Handbook
Interpretation
Journal
Land Use and Development
Law
Legislative Rule
Local Amendment
Local Code
Local Document
Local Regulation
Local Standards
Manual
Model Code
Model Standard
Notice
Ordinance
Other
Paperback
PASS
Periodicals
PIN
Plan
Policy
Product
Program
Provisions
Requirements
Revisions
Rules & Regulations
Standards
State Amendment
State Code
State Manual
State Plan
State Standards
Statute
Study Guide
Supplement
Technical Bulletin
All
|
Description of ASTM-D4136 2012ASTM D4136 - 82(2012)Standard Practice for Sampling Phytoplankton with Water-Sampling BottlesActive Standard ASTM D4136 | Developed by Subcommittee: D19.24 Book of Standards Volume: 11.06 ASTM D4136Significance and Use 4.1 The advantages of water-sampling bottles are as follows: 4.1.1 Samples of known volume can be obtained from a precise depth. 4.1.2 A quantitative sample is obtained. Nanno- and ultraplankton are not lost from the sampling device. 4.1.3 A sampler of almost any desired volume or construction material can be obtained. 4.1.4 The sampler is light-weight and can be used without auxiliary equipment. 4.1.5 There is a free flow of water through the cylinder of the sampler when it is being lowered. 4.1.6 Samplers can be arranged serially to facilitate sampling at several depths almost simultaneously. 4.1.7 The sampler can be used in most depths of water. 4.2 The disadvantages of water-sampling bottles are as follows: 4.2.1 Samples are obtained from only discrete depths; they cannot be obtained from horizontal or vertical strata of water. 4.2.2 The samplers cannot be used satisfactorily in fast-flowing water. 4.3 There are several special considerations that shall be observed when using water-sampling bottles. They are as follows: 4.3.1 The samplers should be protected from damage, which commonly results in leakage. 4.3.2 Following use, the samplers should be hung open in a horizontal position to allow for thorough drying. 4.3.3 The end stoppers should be inspected periodically for signs of wear or deterioration and replaced as necessary ( Fig. 1 a, b, c).
FIG. 1 Water-Sampling Bottles ( a ) Kemmerer ( b ) Van Dorn (
c ) Nansen ( d ) Fjarlie (Illustration by J. W. Steiner and W. G.
Hester, U.S. Geological Survey, Doraville, GA)
1. Scope 1.1 This practice covers the procedures for obtaining quantitative samples of a phytoplankton community by use of water-sampling bottles. 1.2 This 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.
ASTM Standards D4137 Practice for Preserving Phytoplankton Samples ICS Code ICS Number Code 07.100.20 (Microbiology of water) DOI: 10.1520/D4136-82R12 ASTM International is a member of CrossRef. ASTM D4136This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
Some features of MADCAD.com ASTM Standards Subscriptions are: - Immediate Access: As soon as the transaction is completed, your ASTM Standards Subscription will be ready for access.
For any further information on MADCAD.com ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
GROUPS
|