AS 4276.1:2021 pdf download.Water microbiology Method 1: Water quality一General requirements and guidance for microbiological examinations by culture (ISO 8199:2018, MOD).
This document specifies requirements and gives guidance for performing the manipulations common to each culture technique for the microbiological examination of water, particularly the preparation of samples, culture n’,edia, and general apparatus and glassware, unless otherwise required in the specific standard. It also describes the various techniques available for detection and enumeration by culture and the criteria for determining which technique is appropriate.
This document is mainly intended for examinations for bacteria, yeasts and moulds, but some aspects are also applicable to bacteriophages, viruses and parasites. It excludes techniques not based on culturing microorganisms, such as polymerase chain reaction (PCRJ methods.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 7704, Water quality — Evaluation of membrane filters used for microbiological analyses
ISO 11133, Microbiology of food, animal feed and water — Preparation, production, storage and performance testing of culture media
ISO 19458, Water quality — Sampling for microbiological analysis
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www org/b.p
— IEC Electroped ia: available at http://www.electropedia.org/
3.1 accuracy
closeness of agreement between a test result and the accepted reference value
[SOURCE: ISO 6107-8:1993, 1, modified — The note has been deleted.]
3.2 bias
difference between the expectation of the test results and an accepted reference value
[SOURCE: ISO 5725-1:1994, 3.8. modified — Note 1 to entry has been deleted.]
3.3 confirmed count
count (3.4) corrected for not confirmed presumptive counts (3.9) by further testing of the presumptive objects
3.4 count
<microbiology> observed number of objects such as colonies or cells determined by direct counting, or most probable number (MPN) estimation based on statistical calculation using the number of positive units or presumptive positive units in a dilution series of a test sample (3.16)
[SOURCE: ISO 6107-6:2004, 22, modified — ‘or presumptive positive units” has been added.J
3.5 detection level
minimum concentration of organisms that produce evidence of growth with a probability of p = 0,95 when inoculated into a specified culture medium and incubated under defined conditions
Note I to entry: The theoretical level that conforms to this definition is an average of three viable cells in an inoculum volume.
[SOURCE: ISO 13843:2017, 3.101
3.6 intralaboratory reproducibility intermediate precision
closeness of agreement between test results obtained with the same method on the same or similar test materials in the same laboratory with different operators using different equipment.AS 4276.1 pdf download.
Tags: Water microbiology
-
AS/NZS 60335.2.11:2020 pdf free download.Household and similar electrical appliances- Safety Part 2.11: Particular requirements for tumble dryers (IEC 60335-2-11 Ed 8, MOD). 7.10 Addition: If the off position is only indicated by letters, the word “off” shall be used. 7.12 Addition: The instructions shall state — the maximum mass of dry textile material in kilograms to be used in the appliance; — that the tumble dryer is not to be used if industrial chemicals have been used for cleaning; — that the lint trap has to be cleaned frequently, if applicable; — that lint must not to be allowed to accumulate around the tumble dryer (not applicable for appliances intended to be vented to the exterior of the building); — that adequate ventilation has to be provided to avoid the back flow of gases into the room from appliances burning other fuels, including open fires (this instruction is not required if the tumble dryer discharges the air into the room). If symbol ISO 7000-0790 (2004-01) is used, its meaning shall be explained. The instructions shall include the substance of the following. — Do not dry unwashed items in the tumble dryer. — Items that have been soiled with substances such…
-
AS ISO 37100:2020 pdf free download.Sustainable cities and communities 一Vocabulary. 1 Scope This document defines terms relating to sustainable development in communities, smart community infrastructure and related subjects. 2 Normative references There are no normative references in this document. 3 Terms and definitions ISO and IEC maintain terminological databases for use in standardization at the following addresses: — ISO Online browsing platform: available at http://www.iso.orgJobp — IEC Electropedia: available at httwwwe1e1ropetha.orgJ 3.1 Terms relating to sustainable development, resilience and smartness 3.1.1 sustainability state of the global system, including environmental, social and economic aspects, in which the needs of the present are met without compromising the ability of future generations to meet their own needs Note I to entry: The environmental, social and economic aspects interact, are interdependent and are often referred to as the three dimensions of sustainability. Note 2 to entry: Sustainability is the goal of sustainable development. [SOURCE: ISO Guide 82:2014, 3.1] 3.1.2 sustainable development development that meets the environmental, social and economic needs of the present without compromising the ability of future generations to meet their own needs Note ito entry: Derived from the Brundtland Report. Note 2 to entry: The Aalborg Charter provides further information on…
-
AS ISO 37104:2020 pdf free.Sustainable cities and communities – Transforming our cities一Guidance for practical local implementation of AS IsO 37101. This document provides guidance on how to implement and maintain a management system for sustainable development based on ISO 37101 principles, specifically in the context of cities, but applicable to other forms of settlement. This document: — provides guidance for practical implementation ofa managernentsystem for sustainable development in cities and other settlements, based on ISO 37101; — establishes a methodological framework forthe systematic evaluation ofthe sustainable development schemes and achievements in the city or other settlements, based on the cross-analysis of the six purposes of sustainability and the 12 areas of action of ISO 37101; — illustrates how other International Standards can be used to support successful implementation of ISO 37101, including, in particular, ISO 37120 (which recommends a suite of city indicators mapped against the six purposes of ISO 37101) and ISO 37106 (which provides practical guidance on how to implement joined-up delivery and innovation across organizational boundaries within the city or settlement). This document is intended for organizing bodies, decision-makers, executive officers and managers in cities — usually, in the first instance, the relevant local governments. This document…