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7.2 Criterion Rules

7.2.1 The raw materials shall be used only after inspected with qualified results of all items; and the disqualified materials are prohibited to be used for production of elastic parts.

6

TB/T 2843-2007

7.2.2 During ex-factory tests of elastic parts, if any item result is disqualified, it is required to sample double products randomly from that batch for recheck and they are only qualified with acceptable results of all items; and if any item result is disqualified, this batch of products is determined to be unacceptable. And if the results of any two items are disqualified, this batch of products is directly determined to be unacceptable.

7.2.3 During the product type test of elastic parts, the products are qualified only if the results of all items meet the requirements. If the relevant mechanical property of any item is disqualified, double products shall be sampled and rechecked and they are acceptable with qualified results of all items. And if the result of any item remains disqualified, this batch of products shall be determined to be unacceptable.

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