JY/T 0445-2011Glass Mortars for Teaching (English PDF)

3.1 Product Classification

According to the inner diameter, it is divided into six specifications. phi60mm, phi75mm, phi90mm, phi120mm, phi150mm, and phi180mm.

3.2 Model Nomenclature

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

The name of the glass mortar is.

L - YB - Y - 60

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

L-YB-Y-60. a round glass mortar with an inner diameter of 60 mm.

4.1 Materials

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

4.2 Dimensions

The external dimensions and tolerances of the various types of glass mortars shall conform to Table 1, and the dimension symbols are shown in Figures 1 and 2.

Table 1 Dimensions and tolerances in millimeters

Specifications Full height H Bottom height h Mouth diameter D Wall thickness S Mortar length L Mortar head diameter d 3 Mortar diameter d 2 Bottom diameter D 1 Phi 60 37 ± 3 9 ± 2 70 ± 3 5 ~ 7 80 ~ 100 15 ± 3 8 ~ 10 42 ± 2 Phi 75 55 ± 5 11 ± 2 85 ± 5 5 ~ 7 90 ~ 110 15 ± 3 9 ~ 11 54 ± 2 Phi 90 65 ± 5 13 ± 2 100 ± 5 6 ~ 10 105 ~ 135 20 ± 5 12 ~ 14 722 Phi 120 75 ± 5 15 ± 3 135 ± 5 7 ~ 13 130 ~ 170 25 ± 5 15 ~ 17 88 ± 2 Phi 150 82 ± 3 15 ± 3 165 ± 5 7 ~ 13 165 ~ 205 30 ± 5 20 ~ 23 105 ± 2 Phi 180 103 ± 3 15 ± 3.200 ± 5 7 ~ 13 175 ~ 215 35 ± 5 23 ~ 26 132 ± 2

Figure 1 Pestle Figure 2 Mortar

4.3 Appearance

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

Table 2 Permitted appearance defects

Specifications Bubble Stones Air bubbles, stones Allowed total Striped scissors print Phi 60, Phi 75 <=3mm, <=3 pieces <=1.5mm, <=2 pieces <=4 pieces Phi 90, Phi 120 <=5mm, <=3 pieces <=2mm, <=2 pieces <=4 pieces Phi 150, Phi 180 <=7mm, <=3 pieces <=2.5mm, <=2 pieces <=4 pieces

4.3.2 The appearance defects that should not exist shall be in accordance with JY/T 0423-2011 Section 4.1.1.

4.3.3 The mortar should not have a convex bottom.

4.3.4 The wall thickness and bottom thickness of the mortar shall be uniform without sudden changes. The uniformity of wall thickness shall be in accordance with 4.1.1.2 of JY/T 0423-2011.

4.3.5 There should be no steps or unevenness in the mortar.

4.3.6 The frosted surface of the mortar's inner wall should be greater than 1/2 of the height of the mortar.

4.3.7 The frosted surface of the pestle head should cover the end, with an area larger than 1/3 of the semicircular surface of the pestle head. There should be no light spots on the end of the pestle head surface.

4.3.8 The pestle allows for taper.

4.4 Chemical stability

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

4.12 Internal stress

The internal stress should not be greater than 160nm/cm.

4.13 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 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

No. Inspection Content Defect Classification Factory Inspection Type Inspection

1 Geometry and fit

1.1 Dimensions (except wall thickness) A -

1.2 Wall thickness B -

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

No. Inspection Content Defect Classification Factory Inspection Type Inspection 2 appearance requirements

2.1 Appearance defect B -

2.2 Color C -

2.3 Oral treatment (not mentioned) 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 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 According to the importance of each defect, the A, B, and C classification of the defect shall conform to Table 3.

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

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.