JY/T 0449-2011Glass filter suction bottle for teaching (English PDF)

3.1 Product Classification

It is divided into three specifications of 250mL, 500mL and 1000mL according to the capacity.

3.2 Model designation

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

The model name of the suction filter bottle is.

L - CLP - Z - 250

Product specifications, unit. mL Product feature code, cone, and other shapes?

Product name Pinyin prefix, suction filter bottle Product model classification code, glass instrument Model example.

L-GLP-Z-250. Conical suction filter bottle with a capacity of 250mL.

4.1 Materials

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

4.2 Specifications

The external dimensions and tolerances of various specifications of suction filter bottles shall conform to Table 1. The code of each part is shown in Figure 1. The mouth of the bottle is standard ground.

Table 1 Dimensions and tolerances in millimeters

Part name code

Specifications, sizes and tolerances 250mL 500mL 1000mL Bottle full height H 160 ± 8.200 ± 8 240 ± 8 Bottleneck height h 50 ± 3 60 ± 3 65 ± 3 Bottle bottom diameter D 90 ± 3 115 ± 3 140 ± 3 Standard grinding mouth 19/H, 24/H 19/H, 24/H 29/H Outer diameter of branch pipe d 10 ± 2 10 ± 2 10 ± 2 Branch pipe length 55 ± 15 55 ± 15 55 ± 15 Wall thickness S >= 2.5 >= 2.5 >= 2.5

Figure 1 Suction filter bottle

4.3 Appearance

4.3.1 The appearance defects allowed are shown in Table 2.

Table 2 Permitted appearance defects

defect

250mL 500mL 1000mL

Maximum diameter

Quantity

Maximum diameter

Quantity

Maximum diameter

Quantity

Bubbles <=5 <=3 <=6 <=3 <=8 <=3 Nodule <=2 <=3 <=2 <=3 <=3 <=3 Stone <=1 1 <=1 <=2 <=1 <=3 Watermark <=5 <=2 <=5 <=2 <=8 <=2 Allowable total number of bubbles, nodules, stones, and watermarks <= 6 Allowable total number of air bubbles, nodules, stones, and watermarks <=6 Air bubbles, nodules, stones, and watermarks are allowed to total Number <=8 Iron filings <=1 <=2 <=1 <=2 <=1 <=3 Single stripes <= 3, should not be concentrated

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 wall thickness and bottom thickness of the bottle shall be uniform without sudden changes, and the thickness-thickness ratio shall not be greater than 2. 1.

4.3.4 The branch pipe connection should be smooth and firm, and should not be skewed.

4.4 Pressure resistance

The bottle should be able to withstand a pressure difference of 0.2 MPa for 2 minutes without being damaged.

4.5 Chemical stability

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

4.6 Internal stress

It should be no more than 180nm/cm.

4.7 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 3.

Table 3 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, and the inspection plan shall be a normal sampling once. The inspection level is General II.

6.4 Non-conformance determination

No. Inspection Content Defect Classification Factory Inspection Type Inspection

1 Geometry and fit

1.1 Wall thickness B -

1.2 Dimensions (except wall thickness) C -2 appearance requirements

2.1 Appearance defect B -

2.2 Color C -

2.3 Oral Processing C -

2.4 Bottom B -

3 Physical and chemical properties

3.1 Internal stress A -

3.2 Pressure resistance A -

3.5 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.

6.4.1 Classification of defects A, B and C shall be in accordance with Table 3.

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

Table 4 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 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 item" pictogram in accordance with the provisions of GB 191-2008.