GB/T 37603-2019Medium temperature brazing filler metals of aluminum alloys (English PDF)

4.2 Size deviation

It shall use measuring tool of corresponding precision to measure size deviation of brazing filler metal.

4.3 Appearance quality

Under natural scattered light, visually inspect appearance quality. When necessary, it may use size measuring tool to define defect size. Determine defect depth through grinding.

4.4 Melting temperature

Determination method for melting temperature of brazing filler metal is in accordance with provisions of GB/T 1425.

5.1 Inspection and acceptance

5.1.1 Product shall be inspected by supplier to ensure product quality complies with provisions of contract (or order sheet) of this Standard. Supplier fills in quality certificate.

5.1.2 Purchaser shall inspect products received according to provisions of this Standard. When inspection results fail to comply with provisions of contract (or order sheet) of this Standard, it shall be proposed in written form to supplier, and it shall be solved by supplier and purchaser through negotiation. Objections to appearance quality and size shall be proposed within one month since products are received. Objections to other performances shall be proposed within three months since products are received. If arbitration is required, it may entrust an authority recognized by supplier and purchaser to perform the arbitration. Perform sampling together at purchaser's site.

5.2 Batching

Brazing filler metals shall be submitted for acceptance in batches. Each batch certificate

6.1 Marks

6.1.1 Product marks

Each batch of brazing filler metals shall have paper label, printed with following information:

a) designation;

b) state;

c) furnace number or batch number;

d) shape;

e) inspection seal of supplier's technical supervision department (or signature or seal of quality inspector).

6.1.2 Mark of packaging box

Mark of product's packaging box shall comply with provisions of GB/T 3199.

6.2 Packaging, transport, storage

Packaging, transport, storage of brazing filler metal shall comply with provisions of GB/T 3199.

6.3 Product quality certificate

Each batch of products shall be attached with quality certificate, indicating:

a) supplier's name;

b) product name;

c) product designation;

d) furnace number or batch number;

e) shape;

f) delivery state;

g) contract number;

h) net weight and number of pieces; […]