collimator shaft | plumb-line shaft

plumb line [ plumb-line | plumbline ]

plumb bob [ plummet | plumb-bob ]

plummet line

plumb line | plumb bob

deflection of the plumbline

pit plumbing apparatus | shaft plummet

(e) all service conductors shall be enclosed in rigid, threaded and vapour-proof conduit or lead-covered or aluminum-covered cable extending at least 75 feet horizontally from any drilling rig, well, separator, crude petroleum storage or other unprotected source of ignitable vapours.

(Return tabled) Question No. 845 Ms. Kirsty Duncan: With regard to children’s health and the environment: (a) what action has the government undertaken to integrate children’s environmental health into existing public health programs; (b) what specific action is the government undertaking to advocate for the consideration and assessment of hazardous environmental influences on children’s health and development, (i) in Canada, (ii) internationally; (c) what specific action is the government undertaking to raise the political profile of children’s environmental health, (i) locally, (ii) regionally, (iii) nationally; (d) in relation to its contaminated sites, (i) what specific action is the government undertaking to raise awareness about ch ...[+++]ildren’s environmental health, (ii) what are all contaminated sites where action has been taken to raise awareness, (iii) what was the risk; (iv) what was the action taken; (e) what are all government activities focused on children’s environmental health; (f) what are all existing government activities focused on prevention of environmental exposures aimed at protecting children's health; (g) what governmental action has been undertaken to prevent (i) pre-conception, prenatal, and childhood exposures, (ii) air, consumer products, food, soil/dust, water, and other physical environmental exposures, (iii) biological, chemical, and physical hazards; (h) how has the government taken children's vulnerabilities into account in developing environmental and health policies, regulations, and standards; (i) what targeted environmental and health policies, regulations, and standards have already been put in place to protect children's health, and what policies, regulations, and standards are currently under consideration; (j) what action is being undertaken by the government to measure the extent to which pregnant women and their babies are exposed to common environmental chemicals, and what health risks, if any, are associated with th ...

The substitution for lead in solders for the soldering of thin copper wires of 100 μm diameter and less in power transformers is not yet practicable.

Lead in solders for the soldering of thin copper wires of 100 μm diameter and less in power transformers.