ISO 37-2017 pdf free.Rubber, vulcanized or thermoplastic – Determination of tensile stress-strain properties.
For non-product tests, thy maximum time between vulcanization and testing shall be 4 wroks and, for evaluations Intended to be comparable, the tests shall, as far as possible, be carried out after the same time intervaL
For product tests, whenever possible, the time between vukanization and testing shall not exceed 3 months. In other cases, tests shall be made within 2 months of the date of receipt of the product by the customer.
10.2 Protection of samples and test pieces
Samples and test pieces shall be protected as completely as possible from all external influences likely to cause damage during the interval between vulcanization and testing. e.g. they shall be protected from light and heat.
10.3 Conditioning of samples
Condition all samples, other than those from latex, in accordance with ISO 23529 at a standard laboratory temperature, without humidity control, for not less than 3 h prior to cutting out thc test pieces.
Condition all prepared latex samples in accordance with ISO 23529 at a standard laboratory temperature, with humidity control, for not less than 96 h prior to cutting out the test pieces.
10.4 Conditioning of test pieces
Condition all test pieces in accordance with ISO 23529. If the preparation of test pieces involves buffing. the interval between bulling and testing shall be not less than 16 hand not greater than 72 h.
For tests at a standard laboratory temperature, test pieces that do not require Further preparation may be tested immediately, it cut from conditioned test sample& Where additional preparation is Involved, a minimum conditioning period of 3 hat standard Laboratory temperature shall be allowed.
For tests at temperatures other than a standard laboratory temperature, condition the test pieces at the temperature at which the test Is to be conducted for a period sullicient to enable the test pieces to attain substantial rquillbrium in accordance with ISO 23529 (see also 7.4.4).
11 Marking oldumb-bell test pieces
IF using a noncontact extensometer. mark the dumb•bell test pieces with two reference marks to define the test length as specilird In Table I using a suitable marker, The test piece shall be unstrained when It is marked.
The lines shall be marked on the narrow part of the test piece, as shown in Figure 2 Le. equidistant from the centre of the test piece and at right angles to its longitudinal axis.
12 Measurement of test pieces
12.1 Dumb-bells
Measure the thickness at the centre and at each end of the test length with the thickness gauge. Use the median value of the three measurements to calculate the area oithr crnwsection. In any one dumb-bell, none of the three thickness measurements o(the narrow portion shall differ by more than 2% from the median thickness, The width of the test piece shall be taken as the distance between the cutting edges of the die in the narrow part, and this distance shall be measured in accordance with ISO 23529 to the Ocarest 0.05 mm. Tett pieces cut 1mm products might have a non-rectangular cross-section. in which case the width shall be measured directly on the test piece.ISO 37 pdf free download.
Tags: Rubber, vulcanized or thermoplastic
-
ISO 8600-1-2013 pdf free download.Endoscopes – Medical endoscopes and endotherapy devices – Part 1: General requirements. 6 Marking 6.1 Minimum marking Iach individual endoscope or endotherapy device shall have the lollowing minimum marking: a) model number and/or other mark sufficient to identify the endoscope or endotherapy device and its manufacturer; b) maximum insertion portion width, minimum instrument channel width, working length, field of view and/or direction of view where such identification is necessary for the intended use of the endoscope or endotherapy device. The Insertion portion width and instrument channel width units shall be in millimetres. The insertion portion width and instrument channel width can also be marked in French size as defined in 3.5, shown by either ‘Fr or an encircled number; c) wherever reasonable and practicable. the endoscope or endotherapy device and detachable component(s) shall be identified in terms of lot numbers or serial numbers, etc. 6.2 Marking legibility The marking shall remain legible over the lifetime of the device when the endoscope or endotherapy device is used, cleaned, disinlected, sterilized and stored in accordance with the instruction manual. 6.3 Marking exceptions When marking on the endoscope or endotherapy device or detachable component(s) is impossible to achieve due…
-
ISO 15688-2012 pdf free download.Road construction and maintenance equipment – Soil stabilizers 一 Terminology and commercial specifications. This International Standard establishes the terminology, definitions of operation and commercial specifications for soil stabilizers and their components intended for use in road construction and pavement works. It does not apply to soil stabilizers used in agricultural applications. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.. ISO 3911, Wheels and rims for pneumatic tyres — Vocabulary, designation and marking ISO 6746-1, Earth-moving machinery — Definitions of dimensions and codes — Part 1: Base machine ISO 6746-2, Earth-moving machinery — Definitions of dimensions and codes — Part 2: Equipment and attachments ISO 7134. Earth-moving machinery — Graders — Terminology and commercial specifications 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 soil stabilizer self-propelled machine, either towed or transported, with the function of pulverizing, breaking-up, aerating, homogenizing, and loosening existing and imported soil or paving materials and mixing them…
-
ISO 18436-1-2012 pdf free.Condition monitoring and diagnostics of machines – Requirements for qualification and assessment of personnel一 Part 1: Requirements for assessment bodies and the assessment process. 5 Requirements for assessment body personnel 5.1 General provisions In order to ensure that the assessment process is carried out effectively and uniformly, the competence requirements for personnel involved in the entire process shall be defined by the assessment body and, in the case of a third party, be approved by the responsible TCC (in accordance with ISO/IEC 17024). The assessment body shall require its personnel (internal or external) to sign a contract, or other document, by which they commit themselves to comply with the rules defined by the assessment body, including those relating to confidentiality and those relating to independence from commercial and other interests, and from any prior or present link with the persons to be examined that would, in the opinion of the interested parties, compromise impartiality. Clearly documented instructions shall be available to the personnel, describing their duties and responsibilities. These instructions shall be maintained up to date. All personnel involved in any aspect of assessment activities shall possess appropriate educational qualifications, experience and technical expertise, which satisfy defined…