JY/T 0450-2011Glass capillary tubes for teaching (English PDF)

3.1 Product Classification

Capillary tubes are divided into five specifications. phi 0.3mm, phi 0.6mm, phi 0.9mm, phi 1.5mm, and phi 2.5mm.

3.2 Model designation

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

The designation of the capillary is.

L-MXG-Z-0.3

Product specifications, unit. mm Product feature code, straight Product name Pinyin prefix, capillary Product model classification code, glass instrument Model example.

L-MXG-Z-0.3. Straight capillary with an inner diameter of 0.3 mm.

4.1 Materials

It should be made of colorless transparent borosilicate glass. The average linear thermal expansion coefficient is not more than 4.0 x 10-6K-1.

4.2 Specifications

The dimensions and tolerances of the various types of capillaries should conform to Table 1 and Figure 1.

Table 1 Dimensions and tolerances in millimeters

Serial Number Part Name Code Dimensions and Tolerance

1 Outer diameter D phi 5 ~ phi 6 phi 5 ~ phi 6 phi 5 ~ phi 6 phi 5 ~ phi 6 phi 5 ~ phi 6

2 Inner diameter d phi 0.3 ± 0.1 phi 0.6 ± 0.1 phi 0.9 ± 0.1 phi 1.5 ± 0.2 phi 2.5 ± 0.2

3 Full length L.200 ± 10.200 ± 10.200 ± 10.200 ± 10.200 ± 10

Figure 1 Capillary

4.3 Appearance

4.3.1 Permitted appearance defects. the maximum diameter of the nodules should be no more than 1.2mm and no more than 4;

There should be no more than 3; the total number of nodules and stones allowed should be no more than 6.

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 ends of the capillary shall be ground and chamfered.

4.4 Chemical stability

Should meet water resistance HGB level 1, acid resistance H1 level, alkali resistance A2 level.

4.5 Internal stress

The internal stress should be less than 180nm/cm.

4.6 Environmental test

The environmental test shall be in accordance with Chapter 8 of JY/T 0423-2011.

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 comply with Table 2.

Table 2 Inspection items and inspection methods for defect classification, factory inspection, type 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, with a normal sampling once inspection plan and inspection level.

For General II.

No. Inspection Content Defect Classification Factory Inspection Type Inspection

1 Geometry and fit

1.1 Inner diameter A -

1.2 Outside diameter and length C -2 appearance requirements and test methods

2.1 Appearance defect B -

2.2 Color C -

2.3 Oral Processing C -

3 Physical and chemical properties and test methods

3.1 Internal stress A -

3.2 Chemical stability B--

4 Material A--

5 Environmental test

5.1 Stacking Code B--

5.2 Vibration A--

5.3 Free fall A--

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

6.4 Non-conformance determination

6.4.1 Classification of defects A, B and C shall be in accordance with Table 2.

6.4.2 The criteria for a single sample shall be in accordance with Table 3.

Table 3 Single sample determination rules

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

6.4.3 The quality of the inspection lot shall be determined in accordance with GB/T 2828.1-2003, with a normal sampling and one inspection plan.

The outer diameter and length are 6.5, the inner diameter 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.