Browse Standards
Found: 225892 — page 4549 of 4707
Superseded
GB/T 7234-1987 — Measurement of roundness--Terms, definitions and parameters of roundness
National·Recommended
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$85.00PDF
Superseded
GB/T 7235-1987 — Methods for the assessment of departure from roundness--Measurement of variations in radius
National·Recommended
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$470.00PDF
Superseded
GB/T 7242-1987 — Centering errors of lenses
National·Recommended
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$225.00PDF
Valid
GB/T 7244-1987 — Single coil spring lock washers, heavy type
National·Recommended
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$65.002 pages
Valid
GB/T 7245-1987 — Curved single coil spring lock washers
National·Recommended
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$75.005 pages
Valid
GB/T 7246-1987 — Wave single coil spring lock washers
National·Recommended
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$75.001 pages
Superseded
GB/T 7249-1987 — Maximum lamp outlines for general lighting lamps
National·Recommended
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$225.00PDF
Superseded
GB/T 7252-1987 — Guide for the analysis and the diagnosis of gases dissolved in transformer oil
National·Recommended
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$169.00PDF
Superseded
GB/T 7253-1987 — The string insulator units of the cap and pin type--Dimensions and characteristics
National·Recommended
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$205.00PDF
Superseded
GB/T 7257-1987 — Measurement methods of parameter for helium neon laser
National·Recommended
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$195.00PDF
Valid
GB/T 7259-1987 — Guidelines for presenting performance of analog process measurement and control instrument
National·Recommended
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$105.0015 pages
Superseded
GB/T 7261-1987 — Basic testing method of relay and protective equipment
National·Recommended
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$1,160.00PDF
Valid
GB/T 7265.1-1987 — Test method for complex permittivity of solid dielectric materials at microwave frequencies--Perturbation method
National·Recommended
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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
National·Recommended
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$264.006 pages
Superseded
GB/T 7267-1987 — Series of basic dimensions of control and protective panels and cabinet for secondary circuit of power system
National·Recommended
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$165.00PDF
Superseded
GB/T 7268-1987 — Series of basic dimensions of subracks and associated panels of plug-in units for control and protective equipment of secondary circuit of power system
National·Recommended
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$145.00PDF
Superseded
GB/T 7269-1987 — Arrangement, types and basic dimensions for electronic equipment consoles
National·Recommended
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$105.00PDF
Withdrawn
GB/T 7270-1987 — Methods of measurement for photomultiplier tubes
National·Recommended
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$1,364.00PDF
Withdrawn
GB/T 7271-1987 — Methods of measurement for phototubes
National·Recommended
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$165.00PDF
Superseded
GB/T 7274-1987 — Methods for the measurement of direct interelectrode capacitances of electronic tubes and valves
National·Recommended
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$185.00PDF
Valid
GB/T 7276-1987 — Hinges general technical condition
National·Recommended
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$75.0010 pages
Superseded
GB/T 7284-1987 — Wooden framed case
National·Recommended
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$485.00PDF
Withdrawn
GB/T 7286.1-1987 — Test Method for total normal emittance of metals and nonmetallic materials
National·Recommended
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$79.00PDF
Withdrawn
GB/T 7286.2-1987 — Test method for normal spectral emittance of metals and nonmetallic materials
National·Recommended
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$79.00PDF
Withdrawn
GB/T 7287.1-1987 — Detecting method for size, shape and exterior of infrared heater
National·Recommended
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$145.00PDF
Withdrawn
GB/T 7287.10-1987 — Measuring method for normal spectral emittance of infrared heater
National·Recommended
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$79.00PDF
Withdrawn
GB/T 7287.11-1987 — Test method for lifetime of infrared heater
National·Recommended
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$79.00PDF
Withdrawn
GB/T 7287.12-1987 — Test method for vibration of infrared heater
National·Recommended
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$79.00PDF
Withdrawn
GB/T 7287.2-1987 — Measuring method for the surface temperature distribution of infrared heater
National·Recommended
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$79.00PDF
Withdrawn
GB/T 7287.3-1987 — Measuring method for the radio between radiant surface and rear surface of infrared heater
National·Recommended
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$79.00PDF
Withdrawn
GB/T 7287.4-1987 — Measuring method for temperature rise time and fall time of infrared heater
National·Recommended
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$79.00PDF
Withdrawn
GB/T 7287.5-1987 — Testing method for bearing cold and hot alternating change of infrared heater
National·Recommended
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$79.00PDF
Withdrawn
GB/T 7287.6-1987 — Measuring method for insulation resistance of infrared heater
National·Recommended
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$79.00PDF
Withdrawn
GB/T 7287.7-1987 — Measuring method for electric-to-radiant power transfer efficiency of infrared heater
National·Recommended
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$79.00PDF
Withdrawn
GB/T 7287.8-1987 — Measuring method for power deviation rate of infrared heater
National·Recommended
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$79.00PDF
Withdrawn
GB/T 7287.9-1987 — Measuring method for normal total emittance of infrared heater
National·Recommended
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$79.00PDF
Withdrawn
GB/T 7288.1-1987 — Equipment reliability testing. Preferred test conditions. Indoor portable equipment. Low degree of simulation
National·Recommended
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$139.00PDF
Withdrawn
GB/T 7288.2-1987 — Equipment reliability testing. Preferred test conditions. Equipment for stationary use in weather protected locations. High degree of simulation
National·Recommended
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$175.00PDF
Superseded
GB/T 7289-1987 — Presentation of reliability, maintainability and availability predictions
National·Recommended
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$950.00PDF
Superseded
GB/T 7292-1987 — Feed additive--Vitamin A acetate beadlets
National·Recommended
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$95.00PDF
Superseded
GB/T 7293-1987 — Feed additive--Vitamin E powder
National·Recommended
Instant delivery (0–9 sec)
$245.00PDF
Superseded
GB/T 7295-1987 — Feed additive--Vitamin B1 (thiamine hydrochloride)
National·Recommended
Instant delivery (0–9 sec)
$79.00PDF
Superseded
GB/T 7296-1987 — Feed additive--Vitamin B1 (thiamine mononitrate)
National·Recommended
Instant delivery (0–9 sec)
$79.00PDF
Superseded
GB/T 7297-1987 — Feed additive--Vitamin B2 (riboflavin)
National·Recommended
Instant delivery (0–9 sec)
$130.00PDF
Superseded
GB/T 7302-1987 — Feed additive--Folic acid
National·Recommended
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$105.00PDF
Superseded
GB/T 7304-1987 — Petroleum products and lubricants--Determination of neutralization number--Potentiometric titration method
National·Recommended
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$185.00PDF
Superseded
GB/T 7305-1987 — Petroleum oils and synthetic fluids--Determination of demulsibility characteristics
National·Recommended
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$85.00PDF
Superseded
GB/T 7307-1987 — Pipe threads where pressure-tight joints are not made on the threads
National·Recommended
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$35.00PDF