BS EN ISO 8611-1-2022 pdf free download.Pallets for materials handling — Flat pallets Part 1: Test methods
4 Measurements
Pallets selected for testing shall be measured to ensure that materials, construction and dimensions conform to their associated written specification.
The mass and the material of each pallet shall be determined and recorded at the time of testing.
The moisture content of wooden pallets shall be measured and recorded in accordance with EN 13183‑2 at the time of testing.
The recorded deflection at each location in the test is the deflection at the end of the full test load period (or relaxation period) minus the deflection after positioning the datum load. The average of the maximum deflections recorded for each replicate shall be reported and used for further analysis.
Clause 9 gives further details on what should be recorded during testing and in the written report.
5 Precision and accuracy of tests and apparatus
Test apparatus shall satisfy the following requirements.
a) In the design of the test equipment, the tolerances on all dimensions shall be ±2 %.
b) The accuracy of measuring equipment for tests shall be ±0,5 mm.
c) The accuracy of positioning of every component, excluding the test load, shall be ±2 mm;
measurement gauges shall be positioned to ±4 mm.
d) The accuracy of positioning of the centre of application of test load (where used) shall be ±10 mm.
e) The total mass of the test load applied shall be within ±3 % of the prescribed value.
No part of any test rig shall distort an amount greater than ±3 mm when under maximum test load.
Distortion of the test rig shall be taken into account in measuring deflections of the pallet.
NOTE 1 Using heavy duty steel box sections in the construction of fixtures in tests 1 and 6 (see Table 1) normally results in central distortions approaching the 3 mm given limit.
The inclined plane apparatus shall be constructed as specified in ISO 2244 and shall permit inclined travel distance to change by 250 mm increments from 250 mm to 1 250 mm, each increment to within ±5 mm.
NOTE 2 Experience suggests that the interlaboratory test precision for conducting tests 1a and 7a is 16,7 %; and 19,8 % when conducting tests 1b and 7b.
6 Test load
A general value for the test load is not fixed. The test load for each test shall be determined in accordance with ISO 8611‑2.
The test load shall be applied with a testing machine, hydraulic or air pressure, or with dead load and shal increase continuously or in steps to the failure (for determination of ultimate load) or up to the fixed value (for qualification tests).
7 List of tests
Table 1 provides a matrix of the tests (in this document) that shall be performed on flat pallets. Tests numbered 1, 2, 3, 4, 5, 6 and 7 shall be performed with new pallets. Tests 1, 2, 4, 5, 6 and 7 may be carried out on one test sample (first stiffness, then strength, when there is a declared nominal load) or on two separate samples.
NOTE 1 The tests are grouped into the three sections shown in Table 1. The selection of tests and evaluation of pallet performance are set out in ISO 8611‑2 and ISO 8611‑3.
8 Tests
8.1 Test 1 — Bending tests
8.1.1 Purpose
The purpose of these tests is to determine the bending strength (test 1a) and bending stiffness (test 1b) of the pallet in racking situations.BS EN ISO 8611-1 pdf download.