Browse Standards
Found: 117073 — page 2427 of 2440
Valid
GB/T 2011-1987 — Method of sampling and sample preparation of manganeseores in bulk
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$334.007 pages
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GB/T 2019-1987 — Fundamental parameters and technical requirements for audio tape recorders
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$175.0015 pages
Valid
GB/T 223.51-1987 — Methods for chemical analysis of iron, steel and alloy. The 2-(5-Bromo-2-pyridylazo)-5-diethylaminophenol photometric method for the determination of zinc content
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$144.003 pages
Valid
GB/T 223.52-1987 — Methods for chemical analysis of iron, steel and alloy. The hydroxylamine hydrochloride-iodometric method for the determination of selenium content
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$124.002 pages
Valid
GB/T 268-1987 — Petroleum products. Determination of carbon residue. Conradson method
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$135.004 pages
Valid
GB/T 7161-1987 — Unsealed radioactive substances. Identification and certification
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$164.004 pages
Valid
GB/T 7188-1987 — Office machines and data processing equipment. Keyboard layouts for numeric applications
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$89.003 pages
Valid
GB/T 7190-1987 — Mechanical draft cooling towers -- Part 1: Medium and small open cooling towers
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$415.0021 pages
Valid
GB/T 7259-1987 — Guidelines for presenting performance of analog process measurement and control instrument
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$105.0015 pages
Valid
GB/T 7265.1-1987 — Test method for complex permittivity of solid dielectric materials at microwave frequencies--Perturbation method
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$135.0015 pages
Valid
GB/T 7265.2-1987 — Test method for the complex permittivity of solid dielectric materials at microwave frequencies. Open cavity method
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$264.006 pages
Valid
GB/T 7276-1987 — Hinges general technical condition
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$65.0010 pages
Valid
GB/T 7325-1987 — Petroleum products. Lubricating greases and oils. Determination of evaporation loss
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$130.004 pages
Valid
GB/T 7326-1987 — Lubricating grease. Corrosiveness to copper. Copper strip test
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$85.005 pages
Valid
GB/T 7339-1987 — Fixed resistors for use in electronic equipment. Part 6: Blank detail specification: Fixed resistor networks with individually measurable resistors, all of equal value and equal dissipation. Assessment level E
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$304.007 pages
Valid
GB/T 7340-1987 — Fixed resistors for use in electronic equipment. Part 6: Blank detail specification: Fixed resistor networks with individually measurable resistor of either different resistance values or different rated dissi
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$334.007 pages
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GB/T 7341-1987 — Electroacoustics -- Audiological equipment -- Part 1: Pure-tone audiometers
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$469.0019 pages
Valid
GB/T 7347-1987 — The standard spectrum of Chinese speech
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$55.0015 pages
Valid
GB/T 7371-1987 — Trichloromonofluoromethane for industrial uses
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$80.003 pages
Valid
GB/T 7372-1987 — Dichlorodifluoromethane for industrial uses
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$95.004 pages
Valid
GB/T 7401-1987 — Method of subjective assessment of quality of colour TV pictures
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$85.007 pages
Valid
GB/T 7404-1987 — Lead-acid battery for locomotives and rolling stock -- Part 1: Valve-regulate lead acid for electric and subway locomotives
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$394.0013 pages
Valid
GB/T 7410-1987 — Vitreous and porcelain enamels - Terminology - Part 1: Terms and definitions
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$1,534.0052 pages
Valid
GB/T 7414-1987 — Seed packing of main agricultural crops
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$135.0010 pages
Valid
GB/T 7419-1987 — Information processing. Implementation of the 7-bit coded character set and its 7-bit and 8-bit extensions on 3.81mm magnetic tape cassette for data interchange
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$39.002 pages
Valid
GB/T 7423.1-1987 — Heat sink of semiconductor devices--Generic specification
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$95.0010 pages
Valid
GB/T 7423.2-1987 — Heat sink of semiconductor devices. Heat sink, Extruded shapes
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$724.0014 pages
Valid
GB/T 7423.3-1987 — Heat sink of semiconductor devices. Heat sink, staggered fingers shapes
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$1,204.0025 pages
Valid
GB/T 7436-1987 — Specifications of TDM equipment operating on analog telephone-type circuit for telegraph and lower-speed data
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$225.0015 pages
Valid
GB/T 7466-1987 — Water quality--Determination of total chromium
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$135.0010 pages
Valid
GB/T 7467-1987 — Water quality--Determination of chromium(VI)--1, 5 Diphenylcarbohydrazide spectrophotometric method
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$85.0015 pages
Valid
GB/T 7469-1987 — Water quality. Determination of total mercury. Potassium permanganate-potassium persulfate decomposed method. Dithizone spectrophotometric method
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$164.004 pages
Valid
GB/T 7470-1987 — Water quality. Determination of lead. Spectrophotometric method with dithizone
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$144.003 pages
Valid
GB/T 7471-1987 — Water quality. Determination of cadmium. Spectrophotometric method with dithizone
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$194.004 pages
Valid
GB/T 7472-1987 — Water quality--Determination of zinc--Spectrophotometric method with dithizone
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$95.0010 pages
Valid
GB/T 7475-1987 — Water quality. Determination of copper, zinc, lead and cadmium. Atomic absorption spectrometry
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$85.006 pages
Valid
GB/T 7476-1987 — Water quality. Determination of calcium. EDTA titrimetric method
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$164.004 pages
Valid
GB/T 7480-1987 — Water quality--Determination of nitrate--Spectrophotometric method with phenol disulfonic acid
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$100.0015 pages
Valid
GB/T 7484-1987 — Water quality--Determination of fluoride--Ion selective electrode method
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$30.0015 pages
Valid
GB/T 7485-1987 — Water quality. Determination of total arsenic. Silver diethyldithiocarbamate spectrophotometric method
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$95.004 pages
Valid
GB/T 7492-1987 — Water quality--Determination ofBHC and DDT--Gas chromatography
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$199.0015 pages
Valid
GB/T 7493-1987 — Water quality. Determination of nitrogen (nitrite). Spectrophotometric method
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$30.004 pages
Valid
GB/T 7494-1987 — Water quality. Determination of anionic surfactants. Methylene blue spectrophotometric method
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$199.006 pages
Valid
GB/T 7509-1987 — Blank detail specification for microprocessor semiconductor integrated circuits
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$404.008 pages
Valid
GB/T 7514-1987 — Conversion between the 7-bit coded character set for information processing interchange and the 5-unit code for the telegraph service
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$199.001 pages
Valid
GB/T 7515-1987 — Information processing. Coding of machine readable characters (MICR and OCR)
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$105.008 pages
Valid
GB/T 7554-1987 — Protected 5-unit numerical code for telegram service
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$169.0015 pages
Valid
GB/T 7583-1987 — Acoustics. Pure tone air conduction threshold audiometry. For hearing conservation purposes
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$229.007 pages