ISO allows testing at an additional temperature of 27 6 2°C. 2. Referenced Documents. ASTM Standards D Practice for Conditioning Plastics. Iso (E). PDF disclaimer. This PDF file may contain embedded typefaces, in accordance with Adobe's licensing policy, this file may. Home; ISO Preview Printed Edition + PDF; Immediate download; $; Add to Cart ISO
|Language:||English, Spanish, Japanese|
|ePub File Size:||15.31 MB|
|PDF File Size:||12.73 MB|
|Distribution:||Free* [*Regsitration Required]|
ISO INTERNATIONAL. STANDARD. ISO. First edition Details of the software products used to create this PDF file can be found. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the. KdNr,LﬂIlna1-Z ISO —(E) PDF dlsolalmer Thls PDF ﬁle may contaìn embedded typefaces.
We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover. ISO Views Total views. They shall be of a convenient size to give adequate clearance between the specimen and the immersion vessel and should preferably have a mass of at least 1 g. For improved accuracy, the dependence of the density of air on pressure and temperature can be taken into account:
It is the responsibility of the user of this part of ISO to establish appropriate health and safety practices and to determine the applicability of any regulatory limitations prior to use. Method A: Immersion method, for solid plastics except for powders in void-free form. Method B: Liquid pyknometer method, for particles, powders, flakes, granules or small pieces of finished parts.
Method C: Titration method, for plastics in any void-free form. Density is frequently used to follow variations in physical structure or composition of plastic materials. Density may also be useful in assessing the uniformity of samples or specimens. Often the density of plastic materials will depend upon the choice of specimen preparation method.
When this is the case, precise details of the specimen preparation method will have to be included in the appropriate material specification. This note is applicable to all three methods. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document including any amendments applies.
ISO , Quantities and units — Part 3: Mechanics ISO In general, conditioning specimens to constant temperature is not required, because the determination itself brings the specimen to the constant temperature of the test. Specimens which change in density during the test to such an extent that the change is greater than the required accuracy shall be conditioned prior to measurement in accordance with the applicable material specification.
When changes in density with time or atmospheric conditions are the primary purpose of the measurements, the specimens shall be conditioned as described in the material specification and, if no material specification exists, then as agreed upon by the interested parties. NOTE An automatically operating instrument may be used. The calculation of density may be done automatically using a computer.
The liquid or solution with which the specimen comes into contact during the measurement shall have no effect on the specimen.
The density of immersion liquids other than distilled water need not be measured provided they are obtained from an accredited source and are accompanied by certificate. They shall be of a convenient size to give adequate clearance between the specimen and the immersion vessel and should preferably have a mass of at least 1 g. When cutting specimens from larger samples, proper equipment shall be used to ensure that the characteristics of the material do not change.
The surface of the specimen shall be smooth and free from cavities to minimize the entrapment of air bubbles upon immersion in the liquid, otherwise errors will be introduced. Weigh specimens of mass less than or equal to 10 g to the nearest 0,1 mg.
Weigh those of mass greater than 10 g to the nearest 1 mg. Record the mass of the specimen. Remove any adhering air bubbles with a fine wire. Weigh the immersed specimen to the nearest 0,1 mg. Weigh the pyknometer 5. Use the liquid bath 5. For specimens having a density less than that of the immersion liquid, the test may be performed in exactly the same way as described above, with the following exception: The sinker may be considered as a part of the suspension wire.
In this case, the upthrust exerted by the immersion liquid on the sinker shall be allowed for by using the following equation, rather than Equation 2 , to calculate the density of the specimen: Perform the test on a minimum of three specimens and calculate the mean result to three decimal 5.
Stationary support see 5. Pyknometer see 5. Liquid bath see 5. Dessicator, connected to a vacuum system.
Immersion liquid 5. Published in: Full Name Comment goes here. Are you sure you want to Yes No. I saw they have a 7 day trial ongoing. Yayan Rns , Cleaner at Visa at Cleaner. No Downloads. Views Total views. Actions Shares. Embeds 0 No embeds.
No notes for slide. Iso 1 done 1. Baok Intemational Plot No. E ISO Adone is a trademark of Adobe Systems Inoorporated.
In the unlikely event that a problem relating to it is found, please inform the Centra] Secretariat at the adctress given below. The work of preparing International Standards is normally oarried out through ISO technical committees. Each member body Interested In a subject for which a technicat committee has been established has the right to be represented on that committee. Intemational organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
Together with the other parts see below.
ISO consiste of the foIIowing parts. Density gradient column method — Part 3: Gas pyknometer method iv.
Immersion method. Titration method, for plastics in any volo-free form.
Density may also be useful in assessing the uniformity of samples or specimens. This note is applicable to aII three methods. For dated reterences, only the edition cited applies. For undated references. ISO , Quantities and units -— Part 3: Mechanics IISO ISO —1: Table 1 — Density terms OOO.
They were placed on your computer when you launched this website. You can change your cookie settings through your browser. Request Free Trial. Home ISO Full Description This document specifies three methods for the determination of the density of non-cellular plastics in the form of void-free moulded or extruded objects, as well as powders, flakes and granules. Immersion method, for solid plastics except for powders in void-free form.
Titration method, for plastics in any void-free form. Other Browser: Other 0.