JY/T 0443-2011Glass round glass sink for teaching (English PDF)

3.1 Product Classification

According to the outer diameter of the glass round water tank, it is divided into seven specifications. 120mm, 150mm, 180mm, 210mm, 240mm, 270mm, and 300mm.

The shape is divided into an edged sink and an edgeless sink.

3.2 Model Nomenclature

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

The glass round sink is named.

L - YSC - Y/W - 120

Product specifications (outer diameter), unit. mm Product Feature Code, Edged/Boundless Product name Pinyin prefix, round sink Product model classification code, glass instrument Model example.

L-YSC-Y-240. A round glass sink with an outer diameter of 240mm.

4.1 Materials

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

4.2 Dimensions

The overall dimensions and tolerances of the glass round sinks of various specifications should conform to Table 1. The dimensions of the round sinks with edges are shown in Figure 1.

Refer to Figure 2.

Table 1 Dimensions and tolerances in millimeters

Part

name

Code

Specifications, dimensions and tolerances 120 150 180 210 240 270 300 Outer diameter D 120 ± 5 150 ± 5 185 ± 5 210 ± 5 240 ± 5 270 ± 10 300 ± 15 H 80 ± 5 90 ± 5 100 ± 5 110 ± 5 125 ± 5 140 ± 12 140 ± 15 Wall thickness S >=2 >=2 >=2.5 >=3 >=3 >=3 >=3.5 Along the diameter D 1 140 ± 5 170 ± 5 204 ± 5 238 ± 10 280 ± 10 315 ± 10 350 ± 15

Figure 1 Edged round sink

Figure 2 Infinity round water

4.3 Appearance

4.3.1 The appearance defects allowed are to comply with Table 2.

Table 2 Permitted appearance defects

defect

120 150 180 210 240 270 300 350 400 mm mm mm mm mm mm mm mm mm Bubble 10 <= 2 12 2 12 2 14 2 14 2 14 2 14 2 14 2 14 2 Stone 2 <= 2 2 2 2 2 2.5 2 2.5 2 2.5 2 2.5 2 2.5 2 2.5 2 Nodule 3 <= 3 3 3 3 3 3.5 4 3.5 4 3.5 4 3.5 4 3.5 4 3.5 4 Allowable total number of bubbles, stones, nodules total <= 5 bubbles, stones, nodules total <= 6 Iron filings 1.5 <= 2 1.5 2 1.5 2 1.5 2 1.5 2 1.5 2 1.5 2 1.5 2 1.5 2 1.5 2 Scissor prints allow slight, non-stabbing scissors prints the crease allows one crease no longer than 5cm in length 4 single stripes, not 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 bottom should be flat and not convex.

4.3.4 The end of the mouth should be flat, and the sides and mouth should be smooth.

4.3.5 Wall taper is allowed.

4.3.6 The wall thickness and bottom thickness shall be uniform, and shall comply with 4.1.1.2 of JY/T 0423-2011.

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 160nm/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 methods

The inspection items and inspection methods of this product shall conform to Table 3.

Table 3 Inspection items, inspection methods and defect classification

No. Inspection Content Defect Classification Factory Inspection Type Inspection

1 Geometry and fit

1.1 Dimension A -

1.2 Wall thickness B -2 appearance requirements

2.1 Appearance defect B -

2.2 Color C -

2.3 Oral treatment B -

2.4 Bottom A -

3 Physical and chemical properties

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.

6.3 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 During the factory inspection, all the inspection items should be inspected first, and then samples should be taken from the qualified products of all inspection items.

Check.

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 3.

6.4.2 The criteria for a single sample shall be in accordance with Table 4. Defects B and C in the table are allowed to coexist.

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.