JY/T 0428-2011Glass washing bottles for teaching glass instruments (English PDF)

3.1 Product Classification

According to the capacity, it is divided into 125mL, 250mL, and 500mL.

3.2 Model designation

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

The model of gas washing bottle is named.

L - XP - Y - 125

Product (capacity) specifications, mL Product feature code, cylindrical Product name Pinyin prefix, gas wash bottle Product model classification code, glass instrument Model example.

L-XP-Y-125. Represents a cylindrical gas washing bottle with a capacity of 125mL.

4.1 Materials

It should be made of transparent soda-lime glass without yellow-green.

4.2 Specifications

Specifications, dimensions and tolerances shall conform to Table 1 and Figure 1.

Table 1 Dimensions and tolerances in millimeters

Part name code

Specifications, dimensions and tolerances 125mL 250mL 500mL Full height H 233 ± 8 260 ± 10 270 ± 15 Bottle outer diameter D 1 38 ± 2 58 ± 2 65 ± 2 Bottle bottom diameter D 2 52 ± 5 80 ± 5 85 ± 10 Plug ball diameter D 3 22 ± 2 26 ± 2 32 ± 2 Tube ball diameter D 4 16 ± 2 18 ± 2 20 ± 2 Tracheal tube diameter D 5 7 ~ 9 7 ~ 9 7 ~ 9 Main tracheal height h 2 170 ± 3 185 ± 5 195 ± 5 Intake pipe length 1 45 ± 5 55 ± 5 55 ± 5 Outlet tube length l 2 30 ± 3 35 ± 5 42 ± 5 Wall thickness S >=2 >=2 >=2 Inlet and outlet pipe outer diameter d 7 ~ 8 7 ~ 8 7 ~ 8

Figure 1 Gas wash bottle

4.3 Appearance

4.3.1 The allowed appearance defects shall meet the requirements of Table 2.

Table 2 Permitted appearance defects

Defect name

125mL 250mL 500mL

Maximum diameter

Quantity

Maximum diameter

Quantity

Maximum diameter

Quantity

Bubbles <=5 <=3 <=5 <=4 <=6 <=4 Nodule <=2 <=3 <=3 <=3 <=3 <=4 Stone <=2 <=2 <=2 <=2 <=2 <=2 Air bubbles, nodules, stones Allowed total-<=6-<=7-<=8 Light spot, coarse sand print width is less than 4mm, and less than 1/4 of the frosted height of the stopper. One is allowed and should not be in the middle and lower part of the neck.

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 Frosted surface. The frosted surface of the connection port and hemispherical port should be uniform and delicate. The width of the light spots and coarse sand marks should be less than 4mm and the length should be less than the plug height.

1/3 of the number should be allowed only 2 and should not be allowed to be concentrated in the middle and lower part of the mouth.

4.3.4 The uniformity of wall thickness shall be in accordance with 4.1.1.2 of JY/T 0423-2011.

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 not be greater than 180 nm/cm.

4.6 Adhesiveness

Should meet the second level of tightness.

4.7 Environmental test

The environmental test shall be in accordance with Chapter 7 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 3.

Table 3 Inspection items and inspection methods for defect classification, factory inspection and type inspection

No. Inspection Content Defect Classification Factory Inspection Type Inspection

1 Geometry and fit

1.1 Dimension A -

1.2 Wall thickness B -

1.3 Frosting Requirements A -

1.4 Grinding size A -

1.5 Adhesion A -

2 appearance requirements and test methods

2.1 Appearance defect B -

2.2 Color C -

2.3 Oral Processing C -

2.4 Bottom B -

3 Physical and chemical properties and test methods

3.1 Internal stress A -

3.2 Average linear thermal expansion coefficient B--

3.3 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.

6.3 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.

6.4 Non-conformance determination

6.4.1 The classification of defects A, B and C shall conform to Table 3.

6.4.2 The criteria for a single sample shall be in accordance with Table 4.

Table 4 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 overall 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.

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