GOST 31291-2005

• gost-31291-2005.pdf (326.80 KiB)
  ГОСТ 31291-2005

GOST 31291−2005 Palladium refined. Specifications (with Change No. 1)

GOST 31291−2005

Group W51

INTERSTATE STANDARD

PALLADIUM REFINED

Specifications

Refined palladium. Specifications

ISS 77.120
GST 17 5141
17 9441

Date of introduction 2008−01−01

Preface

Goals, basic principles and main procedure of works on interstate standardization have been established in GOST 1.0−92 «interstate standardization system. Basic provisions» and GOST 1.2−97 «interstate standardization system. Interstate standards, rules and recommendations on interstate standardization. The procedure of development, adoption, application, renewal and cancellation»

Data on standard

1 DEVELOPED by the Interstate technical Committee for standardization MTK 102 «Platinum metals"

2 as AMENDED by the Federal Agency for technical regulation and Metrology

3 ACCEPTED by the Interstate Council for standardization, Metrology and certification (Protocol No. 27 of 22 June 2005)

The standard was accepted by voting:

4 this standard takes into account performance and the standard requirements of ASTM B 589−94 «Standard specification for refined palladium» (ASTM 589−94) in terms of chemical composition

5 by Order of the Federal Agency for technical regulation and Metrology dated November 29, 2006 N 282-St inter-state standard GOST 31291−2005 introduced as a national standard of the Russian Federation from January 1, 2008

6 REPLACE GOST 12340−81, GOST 14836−82


Information about introduction in action (termination) of this standard is published in the index «National standards».

Information about the amendments to this standard is published in the index «National standards», and the text changes — in the information sign «National standards». In case of revision or cancellation of this standard the appropriate information will be published in the information index «National standards»


The Change N 1, approved and promulgated by the Order of Rosstandart on 12.10.2015 N 1539-St c 01.04.2016

Change No. 1 made by the manufacturer of the database in the text IUS N 1, 2016

1 Scope

This standard covers refined palladium bullion and powder intended for the production of alloys, semi-finished products, chemical compounds of palladium and other purposes.

The standard specifies the requirements for affilirovannomu palladium intended for the country’s needs and exports.

2 Normative references

The present standard features references to the following standards:

GOST OIML R 76−1-2011 State system for ensuring the uniformity of measurements. Scales non-automatic actions. Part 1. Metrological and technical requirements. Test

GOST 6613−86 Grids wire woven with square cells. Specifications

GOST 12225−80 Palladium. Methods of analysis*
________________
* On the territory of the Russian Federation together with the specified standard are GOST R 52950−2008 «Palladium. Method for determination of loss on heating», GOST R 52951−2008 «Palladium. Methods of atomic-emission analysis with arc excitation spectrum», GOST R 54313−2011 «Palladium. Method of atomic-emission analysis with inductively coupled plasma», GOST R 54335−2011 «Palladium. Method of atomic-emission analysis with spark excitation spectrum.

GOST 14192−96 Marking of cargo

GOST 17527−2003 Packaging. Terms and definitions

Note — When using this standard appropriate to test the effect of reference standards in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet or in the annual information index «National standards» published as on January 1 of the current year, and the editions of the monthly information index «National standards» for the current year. If the reference standard is replaced (changed), when using this standard should be guided by replacing (amended) standard. If the reference standard is cancelled without replacement, then the situation in which the given link applies to the extent that does not affect this link.


(Changed edition, Rev. N 1).

2A Terms and definitions

This standard applies the terminology according to GOST 17527, as well as the following terms with respective definitions:

2A.1 document about quality: the Passport, the certificate.

Section 2A (Introduced later, Rev. N 1).

3 Classification, basic parameters and dimensions

3.1 depending on the chemical composition of the palladium it produces the following brands:

PDA-0, PDA-1, PDA-2 — refined palladium bullion;

PDAP-0, PDAP-1, PDAP-2 — refined palladium powder.

Examples of symbols:

Palladium refined brand of PDA-0 bullion:

PDA-0 GOST 31291−2005

Palladium refined brand PDAP-0 powder:

PDAP-0 GOST 31291−2005

3.2 Ingot of palladium should be rectangular with a length of (100±3) mm and a width of (65±2) mm. the height of the ingot is not regulated.

3.3 the Weight of the ingot shall be not more than 3.5 kg.

3.4 By agreement between manufacturer and customer is allowed to produce palladium bullion of other shapes, sizes and mass.

3.5 the particle size of the palladium powder should be not more than 1.6 mm. presence of powder particles larger than 1.6 mm in the amount not exceeding 2% of the batch weight.

4 Technical requirements

4.1 the Characteristics (properties)

4.1.1 Refined palladium (hereinafter — palladium) must comply with the requirements of this standard and be manufactured according to the technical documentation, duly approved.

4.1.2 Chemical composition of palladium bullion and powder should conform to the standards specified in table 1.


Table 1 — Chemical composition of palladium

4.1.3 the surface of the ingots must be free of burrs, burrs, scratches, nicks, grease and oil stains, and other extraneous non-metallic inclusions.

Allowed a sweep or zachekanka separate superficial damage on the sides of the ingot with no markings. The number of stripped or zaccarini should be no more than five.

The depth of the denuded and zaccarini places on the surface of ingots shall not exceed 1 mm. Traces of machining rejection characteristics are not

(Changed edition, Rev. N 1).

4.1.4 Powder of palladium should not contain extraneous mechanical inclusions.

4.1.5 Palladium pozharovzryvobezopasnost.

4.2 Marking

4.2.1 the front surface of each ingot of palladium labeling, consisting of six prints:

— trademark of the manufacturer;

— numbers (code) of the ingot;

— the symbols of the state of manufacture;

symbol Pd;

— mass fraction of palladium, %;

weight of ingot, g, or G.

Apply other stamps (year of issue, the logo of the enterprise) in consultation with the consumer.

Prints on the bars needs to be clear lines of the print must not have gaps must not be double.

(Changed edition, Rev. N 1).

4.2.2 the Order of the markings on the ingot of palladium establishes a national regulatory document States the manufacturer, in the absence of the manufacturer in agreement with the consumer.

4.2.2 a Refined palladium powder is Packed in consumer packaging — cans or ampoules, ensure the safety of the powder weighing and storage.

(Added, Rev. N 1).

4.2.3 each jar of powder of palladium label containing:

— the name of the metal and its brand;

— the batch number;

— the number in the party;

— weight gross, net and tare, g;

— mass fraction of palladium, %;

room specifications;

— the year of issue;

— the designation of this standard.

(Changed edition, Rev. N 1).

4.2.4 each vial of powder of palladium label containing:

— the name of the metal and its brand;

— the batch number;

— the net mass, g;

— mass fraction of palladium, %;

— the year of issue;

— the designation of this standard.

4.2.5 (Deleted, Rev. N 1).

4.3 Packaging

4.3.1 Bullion palladium and consumer packaging with palladium powder Packed in shipping containers. Types of containers, packaging and packing materials must ensure the protection of ingots and consumer packaging with the powder from damage during transportation and storage.

4.3.2 each shipping container glued or fixed otherwise the label (tag) indicating the number of places, room specifications, as well as other details required for delivery.

The shipment of the powder of palladium in sealed shipping containers additionally mark according to GOST 14192 with the indication of manipulation sign «Fragile. Caution."

4.3.3 Each shipping container sealed or sealed with a seal or stamp of the manufacturer.

4.3.4 Each batch of palladium accompanied by a document about quality that contains:

— trademark and name of the manufacturer;

— the name of the metal and its brand;

— the batch number;

— mass fraction of palladium, %;

— mass fraction of each determined by the impurity, %;

room specifications;

— the year of issue;

— stamp of quality control;

— the designation of this standard.

4.3.5 Each delivery of palladium is accompanied by the specification. In specifications should be specified:

— trademark and name of the manufacturer;

room specifications;

— the name of the metal and its grade;

— the batch number;

— the year of issue;

— the numbers of places;

rooms of bars. (consumer packaging);

the mass of each ingot (net of each unit of consumer package), g;

— mass fraction of palladium, %;

is the mass of pure palladium, g;

— mass fraction of each determined by the impurity, %;

— the total weight of the batch, g;

— the designation of this standard.

4.3.6 Document the quality and specification is protected by plastic film, put in one of the packing stations. Place on packaging labeling «Document here». Allowed to send to the consumer the documents separately.

4.3 (Revised edition, Edit. N 1).

5 acceptance Rules

5.1 Palladium present to the acceptance of the parties.

Party palladium bullion should be composed of one metal melting. Number of bars in the party is not standardized.

Batch of palladium powder should consist of metal produced in one technological cycle.

The weight of the batch of palladium should be no more than 350 kg.

5.2, 5.3 (Deleted, Rev. N 1).

5.4 To check the chemical composition from each batch sampled (for palladium bullion — 6.3 for palladium in powder — 6.4).

5.5 Control of surface quality and the presence of foreign inclusions, as well as weight and dimensions of the ingots are subjected to every ingot.

5.6 quality control packaging, labelling and the validity of accompanying documentation is subject to each batch of palladium, each ingot, each Bank ampoule.

5.7 If there is disagreement in the assessment of chemical composition the manufacturer and the customer at least one of the indicators, analyze a control sample that is stored with the manufacturer.

6 Methods to control

6.1 controlling the surface quality of ingots of palladium is carried out visually without the use of magnifying devices.

Control the size of ingots is carried out using measuring instruments that provide the necessary accuracy.

The weight of ingots, powder in jars, ampoules is carried out by weighing on scales conforming to the requirements of GOST OIML R 76−1. Allowed to use other means of mass measurement, ensuring accuracy of weighing in accordance with table 2.

Table 2

In grams

(Changed edition, Rev. N 1).

6.2 size distribution of the powder of palladium guarantee technology.

The presence of mechanical impurities is determined by the combined sample visually.

6.3 To check the chemical composition of palladium in a sample taken from the melt with obtaining a trial ingots or rods for spectral analysis or another method of selection according to the method of the manufacturer, do not reduce the representativeness of the sample.

The surface of the test bars and the bars need to be flat, and processed by cutting or grinding.

Allowed to acquire a sample by removing shavings no larger than 1 mm from each ingot of the party with one pre-stripped plane, the mass of the joint sample shall be not less than 150 g, weight of prepared sample not less than 120 g. the Minimum sample mass for a party of one or two bars — 60 g.

Determination of the chemical composition of palladium bullion the customer, if necessary, can be performed on the samples taken from any two bars of the party by drilling in the opposite corners and sides of the ingot.

(Changed edition, Rev. N 1).

6.4 For the determination of chemical composition and particle size of the powder of palladium sampled. For this batch of powder was stirred six times on the ring and cone and reduce kvantovanie with stirring at every stage to the mass of the joint sample at least 5% of the batch weight. The combined sample is sieved through a sieve with cell size of 1.6 mm according to GOST 6613, averaged and reduced to the weight of the prepared sample (not less than 200 g).

Allowed the selection of ready samples by the method of intersection of the jet of powder of palladium when it is unloaded from the mixer after the mechanical averaging.

6.5 analysis of the chemical composition of palladium is carried out according to GOST 12225* and other methods to ensure accuracy is not below the predetermined specified standard.
________________
* On the territory of the Russian Federation together with the specified standard operating 52950 GOST R, GOST R 52951, 54313 GOST R, GOST R 54335.

The manufacturer guarantees that the content of palladium in bullions and powder, in accordance with the requirements of 4.1.2.

(Changed edition, Rev. N 1).

6.6 storage Time control sample is 30 calendar days from the date of shipment, unless otherwise provided by the terms of the contract.

(Changed edition, Rev. N 1).

7 Transportation and storage

7.1 Palladium bullion and powder transporterowych and stored in accordance with the requirements of the Federal financial authorities of the state of the manufacturer.

7.1.1 Transportation of palladium is carried out in a Packed form and in accordance with the regulatory requirements of the organization providing the transportation.

7.1.2 Storage of palladium from the manufacturer and the consumer is carried out in Packed in conditions that ensure the safety of goods from damage and spoilage.

The shelf life of palladium in the manufacturer’s packaging is not limited.