Some standard content:
ICS 37.040.30
Chemical Industry Standard of the People's Republic of China
HG/T3571—2000
Photographic chemicals
Ammonium bromide or emulsion2000-06-05Promulgated
200103 01Implementation
Promulgated by the State Administration of Petroleum and Chemical Industry
Registration No.: 74912000
HG/I3571—2000
This standard is converted into the text of 3571-1% of the standard. From the date of implementation of this standard, the following era names [G/T3171—1988] shall be reduced. The standard is the general policy and regulation of China's stone and sand and chemical industry. The standard is under the jurisdiction of the National Technical Committee for Material Standardization. The starting unit of this standard is Beijing Beihua Chemical Co., Ltd. This standard was drafted by the government and issued by the People's Republic of China in 1988. This standard was drafted by the People's Republic of China Photographic Materials Standardization Technical Committee and is the responsible department for the preparation of the standard. It is the Chemical Industry Standard of the People's Republic of China. Photographic Chemicals Ammonium bromide (for emulsion) Molecular formula: NHBr Relative molecular weight: 97.94 According to the 1995 International Standard for Quality Standards HG/T3571-2000 and HG/T3571-1988, this standard specifies the technical requirements, test methods, packaging, marking, transportation and storage of ammonium bromide (for emulsion). This standard applies to fluidized bed for preparing photoemulsion. 2 Reference standards
The following standards contain provisions that are used in this standard and constitute the provisions of this standard. When this standard is issued, the versions shown are valid. All standards will be valid. All parties to this standard should explore the possibility of using the latest versions of the following standards. GB/T 601:1582bZxz.net
G/T 05-198R
GBT C3
UB/1 619-988
GB/T 66N2—:002
Chemical test
Chemical reagents
Chemical reducing agents
Chemical reagents
Beijing reagents
GB/T=24-939
JIG/T 3434-1377
3 Properties
Preparation of standard solutions for titrimetric analysis (volumetric analysis) Preparation of standard solutions for testing
Preparation of preparations and products used in test methods and acceptance rules
Experimental water specifications and test methods! 5036961387 Chemical test kit;
Chemical test specification
This product is white crystalline powder: soluble in water. Requirements
No fire increase! (General standard for atomic absorption spectrometry) Glass emulsion and standard band
According to the requirements of Table 1: Table 1
Content (NER:%
Water narrow reaction
Readability test
Water is not a small amount, %
Uniform method (S) Calculated, %
National Petroleum and Chemical Industry Bureau?000-C6-05 approved photography Frequency
2001-03-01 implementation
material (,
my chemical (1) raw material,
this acid station (50)) contains over, 55
adjustment,
content,
according to Ke for implementation
5 test method
HG/T3571-2D00
Table 1 (complete)
crown grade
0. cot:n5
t. cac 65
In addition to the standard liquid, standard melting point, standard melting point and products are all prepared according to the provisions of GB/T6023/653: The water used in the laboratory should be of grade 11 water of standard grade 11/TH%. The sample should be weighed accurately to J.01. 5.1 Ammonium content of immersion
Weigh the sample (0.3352g of grinding), add 199 water, add 5% chromium chloride 7gm. Total 3 minus 5/L tin salt solution, use silver nitrate standard to make the solution (AgN) 1mml/l. Titrate in a dark place until the solution turns red. The total content of the solution expressed as mass fraction (ratio) is calculated by formula (1) rX97.94
The actual silver content of the standard titration solution of silver nitrate is 1al/LV, the maximum molar mass of ammonium nitrate used in the titration of silver nitrate standard is 1g/mol. 5.2 Water drop area city
Weigh the sample, add 1CCmT. of water without carbon dioxide, and use acidity to determine the pH at 4.5-6 at 20 ℃.
5.3 Good digestibility test
Weigh 33& formula details, drop to 1(cm1). Water, its concentration is not greater than 11g/T3484. The concentration of the standard No. 4 is determined. 5.4 Water without matter
Determine the clarity test case, store it in water Keep warm for 1h, filter with a No. 4 glass filter of constant weight, wash with water and dry at 105-110°C, the mass should not exceed 3.0mg, about 5.5 drops of residue were burned, weighed or placed in a car with a weight of 1.5, heated to the test piece, add [m3] acid, heat until the acid gas disappears, and heat at 802°C to constant temperature. The mass should not exceed 10,000. The mass should not exceed 10,000. The sample should be weighed, put in a bottle, add 25% nitric acid solution 101. Heat in a bath and the solution is colorless. Wash the bottle with water for a while, reduce the heat and cool, such as .m. Silver acid standard, AgO =3.1mul/add base band, bottle seed: mir, add 1. iron sulfate chain indicator solution 1I with whole standard solution [NHCNS)(.1rari/I. titrate until the study solution turns red, the amount of silver nitrate standard solution is minus 5.5ml. 5.7I compound
TG/35712000
weigh the sample, sieve in rT. water, freshly prepared 1. ammonium nitrite solution.mI. add 2mT. vegetable acid to obtain (1/IS),)=0.1m0./2ml. extract, the organic layer is a deep red color, take .5 drops of compound standard and treat it at the same time as the sample. 5.8 Weigh the sample of sulphuric acid, add 1% HCl in alcohol to the solution, then add 1L of 250g/L chloride solution to dilute to 30mL, mix well, and let stand for 10min. Note that the solution should be C.C5mR sodium carbonate (SO.) standard solution and mix with the sample. 5.9 Determine the content of iron and chromium by flameless thermal absorption harmonic method. 5.9.1: Apparatus only Light source: iron hollow core lamp Wavelength: 248.3nm, insulating gas: hydrogen, light source: copper hollow blade lamp Wavelength: 324-2 mr, depth of protection gas: carrier gas. 5.9.2 Determination method Weigh 2 samples, drop them into water, dilute to 1/2 t, and add 0.0 g and 1.5 g of standard liquid (or 1/4 t) respectively. 5.10 Determine by controlled non-flammable atomic absorption spectrometry according to 7.2.2 of 110734-1989. 5.70.1 Instrument conditions 1 Source: lead-acid cathode lamp. Full wavelength: 283.3 nm, protective gas with gas. Light source, hollow core. Wavelength: 222-6 n,
Protective gas: gas
5.102 Determination method
Weigh 20% of the sample and dissolve it in water, dilute it to 1ml. Take 5ml and place it in 5ml aliquots. Add appropriate amount of water to mTZ acid-acetic acid buffer solution T1=1~ small amount of lead (or can standard alcohol solution 5.0CR, 1.0I. 5 g, such as _ag/L pyrrolidone methyl sulfide (AIPLX) liquid 2 mL, add 5 rel. trisane, react at a rate of 2 min, and simmer for 5 min. Take out the phase: add water. aAPIX reverse simmer for 2u to form dichloroethane, make the extract and the organic phase combine, and determine 5 according to the provisions of 2.2.3 in G3/10724-989.11 Performance of the sample
Determined by both parties
6 Inspection rules
Purchase and acceptance shall be carried out in accordance with G/T regulations.
7 Packaging, marking, transportation and storage
1 Packaging shall be determined by both parties.
2 Marking: The standard specification of Bosan Coating System: Product name, manufacturer's name, ex-factory date, net content, batch number, "Photographic Emulsion 5
HG/13571-2000
for use)\. The inner package shall be accompanied by a quality instruction sheet, including: product name, manufacturer's name, batch number, ex-factory date, net content, proof that this product meets the requirements of the technical standards and the standard confirmation number. 7.3 Transportation: It should be carefully placed and prevented from being exposed to wind and moisture. 7.4 Storage: Store in a warm and dry place.
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.