GOST 4658-73
GOST 4658−73 Mercury. Technical specifications (with Changes 1−6 N)
GOST 4658−73
Group W51
INTERSTATE STANDARD
MERCURY
Specifications
Mercury. Specifications
GST 17 2831
Date of introduction 1975−01−01
INFORMATION DATA
1. DEVELOPED AND INTRODUCED by the Ministry of nonferrous metallurgy of the USSR
2. APPROVED AND promulgated by the Decree of the State Committee of standards of Ministerial Council of the USSR from
3. REPLACE GOST 4658−49
4. REFERENCE NORMATIVE AND TECHNICAL DOCUMENTS
| The designation of the reference document referenced |
Item number |
| GOST 12.1.005−88 |
1a.1; 1a.3 |
| GOST 12.1.007−76 |
1a.1; 1a.3 |
| GOST 12.3.009−76 |
1a.9 |
| GOST 12.4.121−83 |
1a.8 |
| GOST 2991−85 |
4.1 |
| GOST 3118−77 |
1a.7 |
| GOST 4159−79 |
3.6 |
| GOST 4232−74 |
3.6 |
| GOST 5960−72 |
4.1 |
| GOST 7933−89 |
4.1 |
| GOST 9147−80 |
3.6 |
| GOST 11125−84 |
1.6; 3.5 |
| GOST 12923−82 |
4.1 |
| GOST 14192−96 |
4.2; 4.4; 4.7 |
| GOST 19433−88 |
2.1; 4.2; 4.4; 4.7 |
| GOST 19908−90 |
3.6 |
| GOST 20490−75 |
1a.7 |
| GOST 24634−81 |
4.1 |
| GOST 26319−84 |
4.1 |
5. Limitation of actions taken on the Protocol N3−93 Interstate Council for standardization, Metrology and certification (I & C 10−93)
6. EDITION Changes N 1, 2, 3, 4, 5, 6, approved in September of 1975, August 1979, December 1984, July 1987, June 1989, February 1993 (IUS 10−75, 9−79, 3−85, 11−87, 11−89, 10−93)
This standard establishes requirements for mercury, manufactured for the needs of the national economy and exports.
Mercury used as an alloying element for the production of semiconductor materials, vacuum electronics, in the production of control and measuring devices, mercury-zinc power sources, reagents, pharmaceutical drugs, as well as in chemical, metallurgical and other industries.
(Changed edition, Rev. N 5).
1. TECHNICAL REQUIREMENTS
1.1. Mercury must be manufactured in accordance with the requirements of this standard for technological regulations approved in the prescribed manner.
Mercury manufactures brands P0, P1, P2 and P3.
(Changed edition, Rev. N 3).
1.2. The amount of the basic substance and non-volatile residue shall be those specified in the table.
| Mark |
OKP code |
Mercury, %, not less |
Non-volatile residue, %, not more |
| R0 |
17 2831 0001 07 |
99,9997 |
0,0003 |
| R1 |
17 2831 0002 06 |
99,999 |
0,001 |
| P2 |
17 2831 0003 05 |
99,99 |
0,01 |
| P3 |
17 2831 0004 04 |
99,9 |
0,1 |
(Changed edition, Rev. N 2, 3, 5).
1.3. Mercury all brands should have a silvery-white color and does not contain mechanical impurities. On the surface of mercury brand of r0 should not be films.
1.4. Mercury brands P0, P1, and P2 should not leave marks on the walls of the glass vessel, white, smooth paper or smooth porcelain plate.
(Changed edition, Rev. N 3).
1.5. (Deleted, Rev. N 3).
1.6. Mercury all brands must completely dissolve in nitric acid with a density of 1.2 g/cmaccording to GOST 11125.
1a. SAFETY REQUIREMENTS
1a.1. Mercury the degree of impact on the human body refers to the 1-mu class of danger in accordance with the requirements of GOST 12.1.005 and GOST
1A.2. The most dangerous are mercury vapor, the source of which is the open surface of mercury.
Mercury causes acute and chronic poisoning, penetrating the body through the respiratory system, the digestive tract, mucous membranes and skin.
Chronic mercury intoxication are expressed in the Central nervous system.
1A.3. Maximum allowable concentration of mercury in the air of working zone according to GOST 12.1.005 — 0.01 mg/m.
The air of the working area should be controlled in accordance with the requirements of GOST 12.1.005, GOST
Analysis of air samples for mercury should be conducted according to methods developed by the Ministry of health of the USSR.
1A.4. Mercury when exposed to excess chlorine can form toxic compound, which belongs to the 1st class of hazard.
1A.5. All remnants of mercury should be collected in sealed vessels and placed under the hood.
1A.6. Spilled mercury should be collected using mechanical methods (flush with water, sucked in by vacuum, collecting the amalgamated copper plate, etc.) with obligatory subsequent chemical treatment where it was shed.
1A.7. For demercurization of the premises floors and walls shall be washed with hot alkaline water, and then treated with a solution of potassium permanganate according to GOST 20490и with hydrochloric acid according to GOST 3118 (in 1 DMof water, 1 g of potassium permanganate and 5 cm
of concentrated hydrochloric acid) or a 20% solution of ferric chloride in the NTD.
1A.8. When performing work with the mercury outdoors at the levels of mercury in the air of working zone above the MPC should use protivorvotnami masks G grade according to GOST
1A.9. Handling of mercury should be performed in accordance with the requirements of GOST
Sec. 1A. (Added, Rev. N 3).
2. ACCEPTANCE RULES
2.1. Mercury accepted by the parties. The party should consist of mercury of the same brand and be accompanied by a document about quality that contains:
trademark or the name and trademark of manufacturer;
brand mercury;
the results of the tests;
the batch number and date of manufacture;
the net weight and gross;
the number of seats;
the number of cylinders included in the party;
stamp and signature of the technical control Department (in the event of prolonged storage);
the designation of this standard;
a sign of danger according to GOST 19433, classification code 8373.
Documentation mercury for export is made in accordance with the requirements of the foreign economic organizations.
Mass production of mercury brand of r0 should be no more than 1000 kg of mercury marks P1, P2 and P3 is not more than 1725 kg.
(Changed edition, Rev. N 3, 5).
2.2. To determine the quality of mercury is taken at every fifth unit, but not less than three units.
To determine the quality of mercury at the manufacturer is allowed to take samples from the complete intersection of the jets of mercury in each filling in fifth place.
2.3. If unsatisfactory test results of mercury repeat tests are carried out on the newly selected sample. The results of repeated tests apply to the entire party.
2.2−2.3. (Changed edition, Rev. N 3).
3. TEST METHODS
3.1. From each selected unit of production glass pipette or automatic sampler brand APO-1 selected spot samples that connect to the merged sample. The mass of the combined samples for mercury brands P0, P1 is at least 300 grams, of mercury of the brand P2 — not less than 150 g, Hg brand P3 — not less than 50 g. the Combined sample is divided into two parts: one part is intended to check the mercury for compliance with the requirements of this standard and the other stored in glass ampoule or otherwise, ensure the quality of products at the factory for 3 months in case of disagreements in quality assessment.
(Changed edition, Rev. N 3, 5, 6).
3.2. A sample of mercury brands P0, P1, and P2 in front of the test filter into a clean glass jar through suede or filter paper. A filter paper folded in the shape of a cone pierced with a thin 15−25 holes with a pin diameter of 0.5 mm. On suede paper or not have to stay the dirt.
3.3. A sample of mercury when shaken, should not leave marks on the walls of a clean glass vessel.
3.2, 3.3. (Changed edition, Rev. N 3, 5).
3.4. The sample was poured on white paper or on a porcelain plate. On paper or disc should not remain any traces. Mercury should form round balls, easily merging into the General mass.
3.5. To check the solubility 5−10 g of mercury is dissolved in 100 cmof nitric acid of density 1.2 g/cm
according to GOST 11125 at 35−40 °C.
3.4, 3.5. (Changed edition, Rev. N 3).
3.6. Mass fraction of mercury is determined by the difference of 100% and content of non-volatile residue. Diagram of the setup for the sublimation of mercury is given in Fig. Setup for sublimation of mercury consists of a backing pump 1, providing the speed of the evacuation of the gases from the pyrolysis zone 6−10 DM/min, inlet 2, the crucible 3 with the analyzed mercury electric heater 4 is equipped with a thermostat that allows you to record the temperature of 300−600 °C, hermetic steel chamber 5 stainless steel, wall thickness not less 4 mm (to cover camera embedded Autonomous heating element that keeps the cover temperature 80−100 °C), outlet from the chamber 6, the steel flue 7, condenser 8, suction chamber 9, the rubber flue 10, flasks Bunsen 11 with a capacity of 3−5 DM
filled with saline Polezhaeva (2.5 g iodine according to GOST 4159 and 30 g of potassium iodide according to GOST 4232 dissolved in 1 DM
distilled water).
Setup for sublimation of mercury
Allowed to use another hardware design of the circuit without changing the basic parameters of sublimation of mercury: the speed of evacuation of gases 6−10 DM/min, the sublimation temperature of 330−350 °C and calcination 490−510 °C.
Method for determination of nonvolatile residue content based on the sublimation of mercury with subsequent weighing the nonvolatile residue.
For the analysis using a porcelain crucible according to GOST 9147 and quartz according to GOST 19908. For mercury stamps r0 using quartz crucibles for stamps P1 — quartz or porcelain, for grades P2 and P3 — porcelain. The crucible pre-calcined at a temperature of 490−510 °C, weighed at least two times and placed in a desiccator.
Porcelain crucibles are weighed on the scales of the brand of VLA-200 g or other precision weighing 0.0005 g, quartz crucibles — stamps on the scales VLR-20 g or other, ensure the weighing accuracy of 0.00005 g. the Differences of the weighing results must not exceed the permissible error of the weighing 0.0005 g for the balance VLA-200 g and 0.00005 g — for the balance VLR-20 g.
For the result of the weighing of crucibles be the arithmetic mean of the results of the two weighings.
A sample weight of 100 g for mercury marks R1 and r0, 50 g for mercury brand P2 and 10 g for Hg brand P3 is placed in a crucible in a sealed steel chamber and sublime in the installation shown in Fig.
The mercury is distilled off at a temperature of 330−350 °C to until the crucible will not remain 1 to 2 grams of mercury.
Then the crucible with mercury calcined to constant weight at a temperature of 490−510 °C and weighed at least two times.
Discrepancies in the results of the two weighings shall not exceed the mercury brands: r0 — 0,00005 g; R1 — 0.0005 g; P2, P3 — 0.005 g.
For the result of the measurement of the mass of nonvolatile residue be the arithmetic mean of the results of the two weighings.
In processing the results of mass fraction of nonvolatile residue () in percent is calculated by the formula
where is the mass of the crucible with the non-volatile residue, g;
- weight of crucible, g;
- its weight of mercury,
The allowable discrepancy between measurements of the mass fraction of nonvolatile residue at a confidence level 
(Changed edition, Rev. N 5).
3.7. Checking the mercury brand of r0 in the presence of the films is carried out after the control storage for 3 days.
(Changed edition, Rev. N 3).
4. PACKING, MARKING, TRANSPORTATION AND STORAGE
4.1. Mercury marks P1, P2 and P3 is poured into steel cylinders for containing 34.5 kg of mercury manufactured according to normative-technical documentation.
Each cylinder is tightly closed screw cap with a gasket of ftoroplastov material with a minimum thickness of 0.15 mm.
During prolonged storage cylinders sealed.
Cylinders transporterowych in specialized pallets N I and N II performance 00, made according to normative-technical documentation.
Mercury brands r0 is poured into cylinders made from thick-walled glass containing 5.0 kg of mercury manufactured according to normative-technical documentation. Allowed in containers of thick-walled glass mercury spill marks P1 and P2.
Cylinders made from thick-walled glass is closed by a metal cap with a lining of plastic according to GOST 5960 and transportyou in specialized pallets N I and N II execution 01 manufactured according to normative-technical documentation.
Mercury brand R1 for medical purposes, Packed into flasks, containing 50 g of mercury. The bottles are closed with a polyethylene stopper and cap.
Each bottle is placed in a polymeric jar of a type 1 with a capacity of 30 cmand compacted ligninom according to GOST 12923. Bottles, plastic tubes and caps, plastic cans be made according to normative-technical documentation. The jar with the vial placed in a pack made according to normative-technical documentation from the brand cardboard chrome-ersatz to GOST 7933 and transportyou in specialized pallets N I and N II execution 02, manufactured according to normative-technical documentation.
Mercury in steel cylinders intended for export are Packed in tight wooden boxes of the type W-2, providing a tight fastening of cylinders and manufactured according to normative-technical documentation in accordance with the requirements of GOST 2991, 24634 GOST and GOST 26319.
Mercury in metal and glass cylinders intended for export may be Packed into specialized pallets N II versions 00 and 01, made by normative-technical documentation and in accordance with the requirements of GOST 26319.
4.2. On the cylindrical part of the steel cylinders and on the marking labels glass cylinders cause a sign of danger according to GOST 19433, classification code 8373 and inscriptions:
trademark or a trademark and the name of the manufacturer;
brand mercury;
batch number;
net weight and gross;
the date of manufacture;
the document number on quality;
the number of the container;
the designation of this standard.
Each bottle should be attached label stating:
product;
brand mercury;
mass of mercury in grams.
Allowed to affix the steel cylinder marking labels according to GOST 14192.
4.1, 4.2. (Changed edition, Rev. N 5, 6).
4.3. (Deleted, Rev. N 3).
4.4. Transport marking specialized pallets is carried out according to GOST 14192 with the application of manipulation sign «Top, do not turn over», but also the sign of danger according to GOST 19433, classification code 8373.
(Changed edition, Rev. N 5).
4.4. Each pallet should be inscribed with:
the name and brand of the product;
batch number;
the number of cylinders or bundles to a pallet;
the number of the document;
the date of manufacture;
the designation of this standard.
(Changed edition, Rev. N 6).
4.5. (Deleted, Rev. N 3).
4.6. Exports and long-term storage of mercury shipped in steel, not used, bottles of 34.5 kg.
Mercury brands r0 intended for export, is shipped in cylinders of thick glass.
(Changed edition, Rev. N 1, 3, 5, 6).
4.7. Labeling of mercury intended for export, is applied to the cylindrical part of the steel cylinders and on the marking labels glass bottles to GOST 14192, GOST 19433 stating:
danger label for class 8 according to GOST 19433 (damn.8);
classification of cipher 8373;
serial number UN 2809;
names and brands of mercury;
the date of manufacture.
(Changed edition, Rev. N 6).
4.8. (Deleted, Rev. N 3).
4.9. Mercury, Packed in accordance with clause 4.1, transporterowych small shipments in covered rolling stock and marine transport in accordance with cargo carriage regulations applicable to transport of this species.
(Changed edition, Rev. N 3, 5).
4.10. Mercury is stored in a packaging manufacturer in a closed room with a relative humidity below 30% and temperature not more than 50 °C.
4.11. (Deleted, Rev. N 5).
5. MANUFACTURER’S WARRANTY
5.1. The manufacturer guarantees compliance with the mercury requirements of this standard, subject to consumer storage conditions established by the standard.
5.2. Warranty period of storage of mercury brands P1 and P2 — 2 years, mercury stamps r0 — 3 years, the mercury brand P3 is not limited.
(Changed edition, Rev. N 5).
Sec. 6. (Deleted, Rev. N 3).
