Isang Paunang Salita
ISO (International Organization para sa Standardisasyon) ay isang pandaigdigang alyansa ng mga pambansang pamantayan katawan (Mga katawan ng miyembro ng ISO). Ang pagbuo ng mga internasyonal na pamantayan ay karaniwang isinasagawa sa pamamagitan ng ISO teknikal na komite. Ang bawat institusyon ng miyembro na interesado sa isang paksa kung saan ang isang teknikal na komite ay itinatag ay may karapatang kumatawan sa komite. Ang pamahalaan at mga di pampamahalaang internasyonal na organisasyon na nakikipag ugnayan sa mga organisasyon ng standardization ay kasangkot din sa gawaing ito. ISO ay gumagana nang malapit sa International Electrotechnical Commission (IEC) sa lahat ng bagay ng electrical standardization.

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ISO 15528-2020 “Sampling of paints, varnishes and corresponding raw materials”

Mangyaring tandaan na ang ilang mga nilalaman ng dokumentong ito ay maaaring sumailalim sa mga karapatan sa patent. ISO ay hindi responsable para sa pagtukoy ng anumang o lahat ng naturang mga karapatan sa patent. Details of any patent rights identified during the preparation of the document will be in the introduction and/or in the list of patent claims received by ISO (tingnan iso.org/patents).

Ang anumang mga pangalan ng kalakalan na ginamit sa dokumentong ito ay ibinigay bilang impormasyon para sa kaginhawahan ng gumagamit at hindi bumubuo ng isang endorsement.

Kusang loob, kaugnay na pamantayan at pag alinsunod pagtatasa kaugnay ISO tiyak na terminolohiya at ipahayag ang kahulugan ng at ang ISO sa mga teknikal na hadlang sa kalakalan (TBT) sumunod sa prinsipyo ng world trade organization (WTO) impormasyon, pakitingnan ang iso.org/iso/foreword.html.

This document has been prepared by Technical Committee ISO/TC 35 (Mga pintura at barnis), Subcommittee SC 9 (General test methods for paints and varnishes), in cooperation with the European Committee for Standardization (CEN) Technical Committee CEN/TC 139 (Mga pintura at barnis), in accordance with the ISO/ CEN Technical Cooperation Agreement (Kasunduan sa Vienna).

The third edition eliminates and replaces the technically revised second edition (ISO 15528:2013) at ISO 8130-9:1992. Kumpara sa nakaraang edisyon, the main changes are as follows:

ISO 15528-2020 “Sampling of paints, varnishes and corresponding raw materials”

– ISO 8130-9 powder coating sampling is included in the scope;

— All information in ISO 8130-9 regarding the division of paint powder samples has been deleted;

— The text has been edited and revised, and normative references have been updated.

Anumang feedback o mga katanungan tungkol sa dokumentong ito ay dapat na idirekta sa pambansang pamantayan ng katawan ng gumagamit. Ang buong listahan ng mga ahensya na ito ay matatagpuan sa iso.org/members.html.

Panimula
Sampling depends on the size of the product and container, but not on the type of product, tulad ng mga pintura, varnishes, paint powders, mga pandikit, mga pigment, fillers or solvents. ISO 1513 specifies procedures for the preliminary examination of individual samples received and for the preparation of test samples by mixing and reducing a series of samples representing a batch of paints, barnisan o mga kaugnay na produkto. Samples of the product to be tested have been collected in accordance with this document.

Correct sampling is the basis for subsequent tests and their results. Operators with the required knowledge and experience need to perform the various sampling procedures with great care. The general instructions in this document are intended to complement this knowledge and experience and apply to most situations. Gayunpaman, some products may require special sampling precautions not provided in this document; Kaya nga, operators need to be particularly vigilant to pay attention to any abnormal characteristics exhibited by these products. Operators should be aware of product specifications and national safety regulations that may require special precautions.

ISO 15528-2020 “Sampling of paints, varnishes and corresponding raw materials”

1 Saklaw
The document specifies procedures for sampling paints and varnishes, including paint powders, and raw materials used in their manufacture. Such products include liquids and materials that are not chemically modified and can liquify when heated, as well as powders, granules and pastes. Samples may be taken from containers, such as cans, barrels, tanks, tank cars or ship tanks, or from barrels, sacks, large bags, silos or silo cars or conveyors.

This document does not address sample preparation for testing or reducing samples thus collected, which is covered in ISO 1513.

2 Mga reperensyang normatibo
The following documents are referenced in the text in such a way that some or all of their contents constitute the requirements of this document. Para sa mga petsang sanggunian, ang binanggit na bersyon lamang ang nalalapat. Para sa mga walang petsang sanggunian, ang bagong bersyon ng sanggunian (kasama ang anumang mga rebisyon) angkop.

ISO 4618, Mga pintura at barnis — Mga tuntunin at kahulugan

ISO 6206, Chemical products for industrial use — Pag sampling — Bokabularyo

ISO 15528-2020 “Sampling of paints, varnishes and corresponding raw materials”

3 Mga tuntunin at kahulugan

Para sa mga layunin ng dokumentong ito, ang mga termino at kahulugan na ibinigay sa ISO 4618 at ISO 6206 at ang mga sumusunod na probisyon ay nalalapat.

3.1 Batch

A given quantity of material produced under uniform conditions

3.2 A Lot

Total amount of material to be sampled

Tala 1: Batches may consist of multiple batches (3.1).

3.3 Individual Samples

A portion of a product removed from bulk material by a single sampling operation

3.4 Representative Samples

A sample conforming to all the characteristics of the sampled material within the accuracy of the test method used

3.5 Average sample

Mixtures of equivalent parts of a single sample (3.3)

3.6 Top Example

Individual samples collected on or near the surface of the material (3.3)

3.7 Middle sample

A single sample (3.3) was collected at a level equivalent to approximately half of the total volume below the surface

3.8 Bottom sample

A single sample taken at or near the lowest level of the material (3.3)

ISO 15528-2020 “Sampling of paints, varnishes and corresponding raw materials”

3.9 Full-layer samples

Individual samples (3.3) were collected through the total height of the material in order to collect all layers proportionally

3.10 Composite samples

A single sample taken from multiple different grades of material (3.3)

3.11 Intermittent samples

Individual samples collected intermittently from material streams (3.3)

3.12 Continuous sampling

Samples were collected continuously from the material stream

3.13 Storage example

Single samples (3.3), average samples (3.5), or continuous samples (3.12), were collected and stored for reference during a specified period of time

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