JY/T 0448-2011Iodine sublimation tube (English PDF)

3.1 Naming rules

The model name of the product is in accordance with JY 0026-1991.

3.2 Nomenclature

The model of iodine sublimator is named.

L - DSG - G - 28 x 34 Product specifications, unit. mm Product feature code, tubular Product name Pinyin prefix, iodine sublimation tube Product model classification code, glass instrument Model example.

L-DSQ-G-28 x 34. a tube-shaped iodine sublimation tube with an external dimension of phi 28mm x 34mm.

4.1 Materials

It should be made of colorless transparent borosilicate glass with an average linear thermal expansion coefficient of not more than 3.4 x 10-6K-1. (There is no test method for this item, Table 3 not mentioned)

4.2 Specifications

4.2.1 The shape of the iodine-sublimation sublimation tube shall conform to Figure 1, and the external dimensions shall not be smaller than those marked in Figure 1.

4.2.2 The ends of the tube shall be concave.

Note. The dimensions in the figure are for reference only and are not required.

Figure 1 Iodine sublimation desublimation tube

4.3 Appearance

4.3.1 Permitted appearance defects. the maximum diameter of the nodules should be no more than 0.5mm and no more than 2; the gas line width should be no more than 0.3mm, no more than 3; single stripes should be no more than 2 and not concentrated; the total allowable number of gas lines and single stripes should be no more than 4.

4.3.2 The appearance defects that should not exist shall be in accordance with JY/T 0423-2011 Section 5.1.1.

4.3.3 The handle and the main pipe shall be connected smoothly and firmly, and shall not be skewed.

4.3.4 The main pipe shall be sealed after adding iodine, and both ends are spherically concave.

4.3.5 The handle should be sealed near the main pipe.

4.4 Chemical stability

It should meet the water resistance HGB level 1, acid resistance H1 level, and alkali resistance A2 level.

4.5 Internal stress

The internal stress should not be greater than 180 nm/cm.

4.6 Thermal shock

The thermal shock should not be lower than.200 ° C.

4.7 Experimental results

Should meet the test of 5.9.

4.8 Environmental test

Should be in accordance with JY/T 0423-2011 Chapter 8.

6.1 Inspection classification

The inspection of this product is divided into factory inspection, type test and quality supervision inspection.

6.2 Inspection items and inspection methods

The inspection items and inspection methods for factory inspection and type inspection shall conform to Table 1.

Table 1 Inspection items and inspection methods for defect classification, factory inspection, type inspection

No. Inspection Content Defect Classification Factory Inspection Type Inspection

1 Geometry and fit

1.1 Dimensions (except wall thickness) B -

1.2 Wall thickness B -2 appearance requirements

2.1 Appearance defect B -

2.2 Color C -

3 Physical and chemical properties

3.1 Internal stress A -

Table 1 Inspection items and inspection methods for defect classification, factory inspection, type inspection (continued)

No. Inspection Content Defect Classification Factory Inspection Type Inspection

3.3 Chemical stability B--

4 Experimental effect A -

5 Material A--

6 Environmental test

6.1 Stacking B--

6.2 Vibration A--

6.3 Free fall A--

Note. "-" in the table means full inspection for batch products, "-" means sample inspection for batch products, and "-" means no inspection.

6.3 Lot rules and sampling methods

6.3.1 The factory inspection shall be based on the natural batch of delivery, and the type inspection shall be based on the inventory array.

6.3.2 When leaving the factory, all the inspection items should be inspected first, and then samples should be taken from the qualified products of all inspection items.

test.

6.3.3 The samples for type inspection shall be taken from the products that passed the factory inspection.

6.3.4 The sampling methods for factory inspection and type inspection shall be in accordance with GB/T 2828.1-2003, and the inspection plan shall be a normal sampling once. The inspection level is General II.

6.4 Non-conformance determination

6.4.1 The classification of defects A, B and C shall conform to Table 1.

6.4.2 The criteria for a single sample shall be in accordance with Table 2. B defects and C defects are allowed to coexist.

Table 2 Single item judgment rules

Classification A defect B defect C defect Pass 0 <= 2 <= 4 Unqualified >=1 > 2 > 4

6.4.3 The quality of the inspection batch shall be determined in accordance with GB/T 2828.1-2003, a normal sampling once inspection plan, AQL value. internal stress, thermal shock and the average linear thermal expansion coefficient is 1.5, the external dimensions are 6.5, and the rest are 2.5.

6.5 Review rules

The re-inspection shall implement the transfer rules in accordance with GB/T 2828.1-2003.

6.6 Quality supervision inspection

Press JY 0002.

7.1 Signs

Should comply with the provisions of Chapter 11 of JY 0001-2003.

7.2 Packaging, transportation and storage

7.2.1 It shall comply with the provisions of Chapter 12 of JY 0001-2003.

7.2.2 The products shall be separated by earthquake-resistant packaging materials and fixed in the packing box so as not to cause collision with each other.

7.2.3 The outer packaging box shall be provided with a "fragile item" pictogram in accordance with the provisions of GB 191-2008.