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    Home > Chemicals Industry > Chemical Technology > One fluorotrichloromethane packaging steel drum (3)

    One fluorotrichloromethane packaging steel drum (3)

    • Last Update: 2021-09-22
    • Source: Internet
    • Author: User
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    4.


    4.


    4.


    4.


    5 sampling

    5.


    Table 2 Classification of unqualified


    5.


    5.


    5.


    5.


    5.


    5.


    5.


    5.


    5.


    5.


    5.
    2.
    4 Batch determination

    According to the provisions of 5.
    2.
    3, if it is unqualified, after repairing or rejecting the unqualified product, the sample can be re-submitted for inspection with the same strictness.
    If it is still unqualified, the batch will be judged as unqualified
    .

    5.
    3 Type inspection

    5.
    3.
    1 Form the inspection group according to the provisions of GB2829:

    5.
    3.
    1.
    1 4.
    1 and 4.
    3 of this standard are the first group;

    5.
    3.
    1.
    2 This standard 4.
    2.
    1, 4.
    2.
    2, and 4.
    2.
    3 are the second to fourth groups respectively
    .

    5.
    3.
    2 Single sampling plan according to GB2829

    5.
    3.
    2.
    1 The first group RQZ=65, DL=1, n=3, Ac=1, Re=2;

    5.
    3.
    2.
    2 The second to fourth groups RQL=30, DL=1, n=3, Ac=0, Re=1
    .

    5.
    3.
    3 Judgment of unqualified units of the first group of samples

    5.
    3.
    3.
    1 When the category B disqualification is more than one item, and the category C disqualification is more than two items;

    5.
    3.
    3.
    2 When the category B unqualified is greater than two items, and the category C unqualified is zero;

    5.
    3.
    3.
    3 Class B disqualification is zero, and class C disqualification is greater than four
    .

    5.
    3.
    4 If the sample units of the second to fourth groups have a category A unqualified, the sample unit is determined to be unqualified
    .

    5.
    3.
    5 When one test group fails, the type inspection shall be determined as unqualified
    .

    6 Test method

    6.
    1 Steel drum inspection is divided into factory inspection and type inspection
    .

    6.
    1.
    1 Factory inspection

    6.
    1.
    1.
    1 4.
    1, 4.
    2.
    2, and 4.
    3 of this standard are factory inspection items;

    6.
    1.
    1.
    2 4.
    2.
    1.
    1 of this standard is a mandatory inspection item for each steel drum
    .

    6.
    1.
    2 Type inspection

    6.
    1.
    2.
    1 4 (requirements) specified in this standard are type inspection items;

    6.
    1.
    2.
    2 When steel drums have one of the following conditions, type inspection shall be carried out:

    a.
    New product or old product is transferred to factory for trial production and type appraisal;

    b.
    When changes in structure, materials, and processes may affect product performance;

    c.
    Normal production, inspection every six months;

    d.
    When production is resumed one year after production is stopped;

    e.
    When the national quality supervision agency puts forward a requirement for type inspection
    .

    6.
    2 Basic dimensions

    Detect with universal measuring tools
    .

    6.
    3 Air tightness test

    According to the provisions of GB325 Appendix B (Supplement)
    .

    6.
    4 Hydraulic test

    According to the provisions of GB325 Appendix C (Supplement)
    .

    6.
    5 Drop test

    According to the regulations of GBT4857.
    5, the steel drum is not subject to humidity treatment, and 98% of the water can be filled in the drum.
    Choose the edge to drop one at 5 and 6 points, and one at the 5th and 6th line.
    The highest position of the steel drum after falling Drill holes to balance the pressure inside and outside the barrel
    .

    6.
    6 Assembly quality of the closure

    According to the provisions of GB13251
    .

    6.
    7 The quality of the inner and outer surface protective layer shall be carried out in accordance with the provisions of GB325 Appendix A (Supplement)
    .

    6.
    8 Appearance quality

    Use hand feel, visual inspection and general measuring tool inspection
    .

    7 Marking, packaging, transportation and storage

    7.
    1 Mark the appropriate position on the top of the bucket

    a.
    The name or code of the manufacturer;

    b.
    Production year and month;

    c.
    CFC-11 packaging steel drum, one-time use
    .

    7.
    2 Packaging

    Steel drums are packed in containers, pallets or methods agreed with the user
    .

    7.
    3 Transportation

    Steel drums are thin-walled containers and should be avoided from bumping, falling and rolling during transportation, loading and unloading
    .

    7.
    4 Storage

    Steel drums should not be stacked in the open, and the bottom layer should be cushioned when stacking
    .

     

     

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