GB/T 26309-2010Silver evaporation material (English PDF)

3.1 Product classification

By chemical composition, silver evaporation material is of a single type, of the grade designated IC-Ag99.99.

By shape, silver evaporation material is divided into two kinds, sheet and cylindrical, as shown in Figure 1.

Figure 1 shows the two shapes with their dimensional symbols. The sheet form is drawn in plan and in edge view, with the two side lengths, the thickness and the corner radius marked; the cylindrical form is drawn in side view and in end view, with the length and the diameter marked.

3.2 Chemical composition

3.2.1 The chemical composition of silver evaporation material of grade IC-Ag99.99 shall comply with the provisions of GB/T 4135.

3.2.2 The content of non-metallic elements in silver evaporation material of grade IC-Ag99.99 shall comply with the provisions of Table 1. Where the purchaser has other special requirements, they shall be settled by negotiation between the supplier and the purchaser.

Table 1 gives, for the single grade, the maximum mass fraction permitted for each of the five non-metallic elements controlled by this standard, namely carbon, hydrogen, oxygen, nitrogen and sulfur.

3.3 Delivery condition

Silver evaporation material is delivered in the processed condition.

3.4 Geometrical dimensions

The dimensions of silver evaporation material and their permissible deviations are given in Table 2.

Table 2 is divided into the sheet form and the cylindrical form. For the sheet form it lists the standard combinations of the two side lengths, the thickness and the corner radius, each dimension carrying its own permissible deviation; for the cylindrical form it lists the standard combinations of diameter and length with their permissible deviations. The units of the table are millimetres.

3.5 Surface quality

The surface of silver evaporation material shall be bright and flat and clean, with the edges and corners intact, and free from flash, burrs, inclusions, cracks and other defects; it shall be free from oil stains and from corrosion; and it shall carry no adhering particles or other contamination.

5.1 Inspection and acceptance

5.1.1 The product shall be inspected by the inspection department of the supplier, which shall guarantee that the product quality complies with the provisions of this standard or of the order contract and shall fill in a quality certificate.

5.1.2 The purchaser shall re-inspect the product received in accordance with the provisions of this standard. Where the result of the re-inspection does not agree with the provisions of this standard or of the order contract, the purchaser shall raise the matter with the supplier within three months from the date of receipt of the product, and it shall be settled by negotiation between the supplier and the purchaser. Where arbitration is required, the arbitration sampling shall be carried out jointly by the supplier and the purchaser at the premises of the purchaser.

5.2 Batching

The product shall be submitted for acceptance in batches. Each batch shall consist of product of the same charge batch and of the same specification.

5.3 Inspection items and sampling

The inspection items, the sampling positions and the sampling quantities shall comply with the provisions of Table 3.

Table 3 lists the four inspection items - chemical composition, geometrical dimensions, surface quality and packaging quality - and gives for each of them the sampling position, the sampling quantity, and the clause of this standard that states the requirement and the clause that states the inspection method. The chemical composition is sampled from beneath the shrinkage cavity of the ingot, at the proportion of the ingots stated in the table and with a minimum number of ingots and of samples per ingot; the geometrical dimensions and the surface quality are sampled at random from the finished product according to the sampling plan of GB/T 2828.1 named in the table; the packaging quality is inspected piece by piece.

5.4 Judgement of the inspection results

5.4.1 Where the chemical composition does not conform, that ingot is judged not to conform. A double quantity of ingots shall be sampled again and inspected; if there is still non-conformity, the batch is judged not to conform.

5.4.2 Where the geometrical dimensions do not conform, that batch of product is judged not to conform.

5.4.3 Where the surface quality does not conform, that batch of product is judged not to conform.

5.4.4 Where the packaging quality does not conform, that package of product is judged not to conform.

6.1 Marking

A label shall be attached to each bottle or each bag of product that has passed inspection, stating the following: a) the product name; b) the purity; c) the specification; d) the net weight; e) the gross weight; f) the batch number; g) the date of manufacture; h) the name of the supplier; i) the address and telephone number of the manufacturer.

6.2 Packaging, transport and storage

6.2.1 The inner packaging of silver evaporation material may be of two kinds, plastic bottle packaging and vacuum sealed packaging. For plastic bottle packaging, the aluminium sealing film at the mouth of the bottle shall seal the mouth completely, without splitting and without perforation. For vacuum packaging, the seal of the vacuum bag shall be flat and without perforation, and the body of the vacuum bag shall be free from holes and from loss of vacuum.

6.2.2 The outer packaging shall be a carton or a wooden case. Other means of packaging may also be used by agreement between the supplier and the purchaser.

6.2.3 During transport the product shall be protected from bruising and abrasion, it shall not be damaged or contaminated, and the product and its packaging shall be kept intact throughout the transport.

6.2.4 The product shall be stored in a clean and dry environment.

6.3 Quality certificate

Each batch of product shall be accompanied by a quality certificate stating the following: a) the name of the customer; b) the name of the supplier; c) the product name; d) the purity; e) the specification; f) the quantity; g) the net weight; h) the batch number; i) the test report and the stamp of the technical supervision department; j) the date of manufacture; k) the number of the standard applied.