Questions & Answers
Metal grades of bismuth ingots
Such ingots are classified by samples: Bi-Tech, Bi-995, Bi-999, Bi-9995, Bi-9999.
Standards for bismuth pigs
International standards:
ISO 1812 - Methods of sampling non-ferrous metals;
ISO 11426 - Analysis of impurity content in metals;
ISO 7529 - Classification of bismuths.
GOST standards:
GOST 1770-74 - Sampling;
GOST 2604.0–77 - Rules for the analysis of non-ferrous metals;
GOST 15027.1–77 - Methods for determining bismuth in alloys;
GOST 123-2008 - Methods of analysis of non-ferrous metals;
GOST 10928-90 - Metallic bismuth.
Table of bismuth pig iron weights
| Pig type | Weight of one pig | Approximate dimensions | Note |
| Mini pigs | 0,5 кг | small ingots | laboratory/trial batches |
| Small | 1 кг | compact ingots | frequent packaging |
| Standard | 2 кг | rectangular | the most common |
| Average | 5 кг | cast blocks | industrial packaging |
| Large | 10 кг | massive ingots | warehouse lots |
| Industrial | 15–25 кг | big pigs | metallurgical supplies |