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  • ASTM
    D4198-82(2011) Standard Test Methods for Evaluating Absorbent Pads Used with Membrane Filters for Bacteriological Analysis and Growth
    Edition: 2011
    $91.10
    Unlimited Users per year

Description of ASTM-D4198 2011

ASTM D4198 - 82(2011)

Standard Test Methods for Evaluating Absorbent Pads Used with Membrane Filters for Bacteriological Analysis and Growth

Active Standard ASTM D4198 | Developed by Subcommittee: D19.08

Book of Standards Volume: 11.02




ASTM D4198

Significance and Use

These test methods are appropriate for qualifying absorbent pads used with membrane filters for bacteriological enumeration.

The test methods described are applicable to quality control testing of absorbent pads by the suppliers and users of these pads and to specification testing of absorbent pads intended for use with membrane filters in bacteriological enumeration.

Other pure culture organisms and their appropriate culture medium may be substituted for the E. coli and M-FC media for specification testing, as required.

1. Scope

1.1 These test methods cover the determination of the nutrient-holding capacity and the toxic or nutritive effect on bacterial growth of organisms retained on a membrane filter, when the absorbent pad being tested is used as a nutrient reservoir and medium supply source for the retained bacteria.

1.2 The tests described are conducted on 47-mm diameter disks, although other size disks may be employed for bacterial culture techniques.

1.3 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.


2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D1129 Terminology Relating to Water

D1193 Specification for Reagent Water

D3508 Method for Evaluating Water Testing Membrane Filters for Fecal Coliform Recovery (Discontinued 1994)


Keywords

absorbent pads; bacteriological; filter membranes; Sterilization--water analysis; Toxicity/toxicology--water environments; Nutrient holding capacity; Absorbent materials/applications; Bacteria/bacterial control--water; Membrane filters (MF)--water testing; Microorganisms;


ICS Code

ICS Number Code 07.100.10 (Medical microbiology)


DOI: 10.1520/D4198-82R11

ASTM International is a member of CrossRef.

ASTM D4198

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About ASTM

ASTM 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.
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